Biodegradability - Plastics and Elastomers R&D Highlights

Top experts review the latest patents they read and the latest papers and lectures they attended at conferences; they then make a selection of the most promising technologies and summarize in a few lines what the substance you should take away with you.

Biodegradability

Jul 23, 2010 - Biodegradable Food Containers - Patent
This invention provides biodegradable food containers having excellent water resistance and rigidity. The compositions contain 15% - 75% by wt. of... (1 Member Reaction)

Jul 22, 2010 - Biodegradable Polycarbonate - Patent
This patent application claims a polycarbonate resin composition made using at least one plant-derived component. The polycarbonate has improved...

Jul 07, 2010 - PCL/phosphate glass composites for medical applications - Technical Paper
Phosphate-based glasses and their composites are of interest as bone repair and tissue engineering scaffolds due to the totally degradable nature of...

Jun 21, 2010 - Effect of processing on PLA crystallization - Technical Paper
PLA is an emerging material mainly because it can be synthesized from renewable resources and is thus environmentally and ecologically safe. The...

Jun 01, 2010 - Starch based bio-nanocomposites - Technical Paper
Starch is a natural, renewable, and biodegradable polymer produced by many plants as a source of stored energy. It is the second most abundant biomass...

May 31, 2010 - PHAs - the future green materials of choice - Technical Paper
PHAs have recently been the focus of attention as a biodegradable and biocompatible substitute for conventional non-degradable plastics. The cost of...

May 13, 2010 - Biaxially-oriented shrinkable biodegradable film - Patent
A bidirection-shrinkable biodegradable film comprising PLA- based resin containing at least 80% by weight of the L-lactic acid repeating unit, wherein... (1 Member Reaction)

Apr 29, 2010 - Present and future development in plastics sourced from biomass - Technical Paper
Biobased plastics have experienced fast growth in the past decade thanks to the public concerns over the environment, climate change and the depletion...

Apr 28, 2010 - Environmental impacts of conventional vs bio-based plastic bags - Technical Paper
The production of biodegradable and compostable plastics has steadily grown worldwide. Disposal options include: land filling, incineration, and the...

Apr 21, 2010 - Biodegradable Blends of PS and Starch - Technical Paper
PS/cornstarch blends were prepared by melt-processing in the presence of maleic anhydride (MA), using an internal mixer as reactor. SEM was used to... (1 Member Reaction)

Apr 15, 2010 - Development of natural fiber based materials for noise control in car interiors - Technical Paper
As natural fibers are noise-absorbing materials, renewable and biodegradable nonwovens have been developed using natural fibers such as banana,...

Apr 12, 2010 - PLA modifications - Patent
PLA is the most extensively researched and utilized biodegradable and renewable thermoplastic polyester, with potential to replace conventional...

Apr 07, 2010 - Processing of Protein-Based Thermoplastics and Their Properties - Technical Paper
Increasing interest in competitive, sustainable, and biodegradable alternatives to petroleum-based plastics has encouraged the development of...

Mar 15, 2010 - Potential hazard in structural applications of PLA - Technical Paper
With their excellent biocompatibility and relatively high mechanical strength, PLAs are attractive candidates for application in load-bearing,...

Mar 08, 2010 - Environmental impacts of conventional and bio-based carrier bags - Technical Paper
The use of bio-based products as carrier bags, packaging materials, and many other applications has been increasingly replacing conventional polymer...

Mar 05, 2010 - Design of biodegradable polymer systems for tissue engineering - Technical Paper
A vast majority of biodegradable polymers studied belongs to the polyester family which includes polyglycolides and polylactides. Some disadvantages... (1 Member Reaction)

Mar 01, 2010 - Sustainable carbon based materials - Technical Paper
The production of functional nanostructured materials starting from cheap natural precursors using environmentally friendly processes is a highly...

Dec 24, 2009 - Enhancing the performance of PLA - Patent
This invention is a multilayer film consisting of a curl resistant outer layer to protect PLA from hydrolytic degradation. The protective layer has a... (1 Member Reaction)

Dec 17, 2009 - Biodegradable PHB nanocomposite - Technical Paper
This article explores blends and composites of PHB and PE (widely used in packaging films) with colloidal nano- silica. The mixtures were prepared by... (2 Member Reactions)

Dec 16, 2009 - Biodegradable nanocomposite elastomers - Technical Paper
Biodegradable nanocomposite elastomers were produced from natural rubber latex, starch, and montmorillonite clay. The rubber/starch/clay blends were...

Dec 15, 2009 - Biodegradable nanocomposites based on epoxidized soybean oil - Technical Paper
The objectives of this study were to investigate the effect of epoxide content (24-88 mole %) on the mechanical properties and characteristics of...

Dec 07, 2009 - Biocomposites based on plasticized starch - Technical Paper
The potential of biodegradable polymers, and more particularly that of polymers obtained from agro resources, such as polysaccharides like starch, has...

Dec 01, 2009 - Novel biodegradable thermoplastic compositions - Patent
The thermoplastic compositions of this invention contain (a) 10-80% polyhydroxyalkanoate polyester, (b) 10-80% conventional polymer having melting...

Nov 24, 2009 - Polymers from Renewable Resources - Technical Paper
Macromolecules has devoted an entire issue (17 papers) on the topic of polymers from renewable resources. Foremost among these papers in this issue is...

Nov 23, 2009 - Thermal processing of starch-based polymers - Technical Paper
This article reviews the thermal processing of starch-based polymers, including both fundamental science such as microstructure, phase transition and...

Nov 12, 2009 - Heat resistant PLA blends - Patent
A significant disadvantage of the use of PLA is its low heat resistance. This problem has been overcome by blending PLA with styrene maleic anhydride... (2 Member Reactions)

Nov 11, 2009 - Blends of PLA with thermoplastic starch - Technical Paper
Blends of PLA and thermoplastic starch were prepared by means of the melt mixing method. The results show that PLA and thermoplastic starch are...

Oct 26, 2009 - Plastic materials - the resource crunch and transitions: can monomers and polymers from renewable resources meet the demand? - Technical Paper
This article is a review of monomers and polymers made from renewable resources. The article focuses on the transition from fossil-based materials to... (5 Member Reactions)

Oct 23, 2009 - Knowledge-Based Approach towards Hydrolytic Degradation of Polymer-Based Biomaterials - Technical Paper
Hydrolytically degradable biomaterials are being developed to enable the design of temporary implants that substitute or fulfill a certain function as...

Oct 15, 2009 - Biodegradable polyolefins - Technical Paper
Environmentally degradable polymers are the focus of a great deal of research around the world, which began over half a century ago with the... (4 Member Reactions)

Oct 14, 2009 - Plastics, the environment and human health: current consensus and future trends - Technical Paper
Plastics have transformed everyday life; usage is increasing and annual production is likely to exceed 300 million tonnes by 2010. In this article a... (3 Member Reactions)

Oct 07, 2009 - PHA based bioplastics - a review - Technical Paper
Polyhydroxyalkanoates (PHA) are biopolyesters produced by many bacteria and have been extensively investigated by microbiologists, molecular... (2 Member Reactions)

Sep 27, 2009 - Recent developments in biopolymers - Technical Paper
Society has been reaping the benefits of industrial polymers for a long time. Polymers have entered every market in a very influential manner, from... (6 Member Reactions)

Sep 18, 2009 - Monomers and polymers with covalently-attached active ingredients - Patent
This invention describes methods to form an active agent modified monomer or polymer. Background of this innovation is to answer to the need for...

Jul 22, 2009 - Composites for packaging articles and method of making same - Patent
This patent application describes novel composite structures which utilize a combination of fibers, whether natural or synthetic, and mineral...

Jul 20, 2009 - Biodegradable polymers - Patent
We discovered that polymers containing short hydrocarbon segments that are attached by disulfide linkages are biodegradable. The S-S bonds in the... (3 Member Reactions)

Jul 08, 2009 - Natural fiber reinforced biodegradable polymer composition for compounding, casting, extrusion and molding - Patent
A natural fiber based, melt processable composite material comprising a polymer matrix of a biodegradable polymer such as starch or cellulose...

Jul 05, 2009 - Cellulose modification by polymer grafting - Technical Paper
This paper reviews the recent advances in graft polymerization techniques involving cellulose and its derivatives. It summarizes some of the features... (1 Member Reaction)

Jul 05, 2009 - Natural and man-made cellulose fibre-reinforced poly(lactic acid) (PLA) composites: An overview about mechanical characteristics and application areas - Technical Paper
The paper describes the manufacture and mechanical characteristics of composites made completely of renewable raw materials. Composites of different... (2 Member Reactions)

Jun 29, 2009 - Natural fibre based composite material - Patent
Natural fibers offer many benefits as reinforcing additives for plastics including density reduction, biodegradability, and sustainability. This... (1 Member Reaction)

Jun 18, 2009 - Process to produce biaxially oriented polylactic acid film at high transverse orientation rates - Patent
A biaxially oriented laminate film including an amorphous PLA polymer heat sealable resin layer and a second core layer including a blend of... (1 Member Reaction)

May 27, 2009 - Recent development in natural fiber reinforced polypropylene composites - Technical Paper
This review article describes the recent developments of natural fiber reinforced polypropylene (PP) composites. Natural fibers are low-cost,... (12 Member Reactions)

Apr 26, 2009 - Electrospinning: methods and development of biodegradable nanofibres for drug release - Technical Paper
Nanofibrous structures can be used as tools for many applications. It is already known that electrospinning is a highly versatile method of producing...

Apr 26, 2009 - Multi-scale hybrid biocomposite: Processing and mechanical characterization of bamboo fiber reinforced PLA with microfibrillated cellulose - Technical Paper
In this research we develop novel hybrid biocomposites based upon a biodegradable PLA matrix reinforced with microfibrillated cellulose (MFC) and...

Apr 19, 2009 - Blends of biodegradable polymers and acrylic copolymers - Patent
The patent application claims blends of a biodegradable polymer with one or more acrylic copolymers for the purpose of improving the properties and...

Apr 19, 2009 - Polymer devices for therapeutic applications - Patent
THis patent application describes a multi-layered polymer device having three-dimensional containers for holding a therapeutic and/or medical imaging... (2 Member Reactions)

Apr 19, 2009 - Toilet flushable type biodegradable collection bag - Patent
This patent application describes a toilet-flushable biodegradable bag. The toilet-flushable biodegradable bag is somewhat water-resistance but can...

Apr 03, 2009 - Method for forming polylactic acid fibers - Patent
A method of forming a PLA fiber that involves the use of a macrocyclic ester oligomer to improve the crystallinity rate is provided. Without intending...

Apr 03, 2009 - Nano-biocomposites: Biodegradable polyester/nanoclay systems - Technical Paper
In the recent years, bio-based products have raised great interest since sustainable development policies tend to expand with the decreasing reserve... (2 Member Reactions)

Apr 02, 2009 - Polymer devices for therapeutic applications - Patent
Multi-layered polymer devices having three-dimensional containers for holding a therapeutic and/or imaging agent are provided. The devices have a high...

Apr 02, 2009 - Processing and characterization of Poly(lactic acid) films plasticized with commercial adipates - Patent
The high brittleness of PLA is a major drawback for flexible food packaging applications. The aim of this work is to evaluate the potential use of...

Mar 15, 2009 - Advances in stent drug delivery: the future is in bioabsorbable stents - Technical Paper
This expert opinion review offers a perspective on the future developments in drug-eluting stent design. Initial efforts were focused on reduction of... (1 Member Reaction)

Mar 15, 2009 - Ecobionanocomposites: New bioplastics with improved use temperatures - Conference
The now rapidly developing field of bioplastics, plastic materials based on renewable resources, provides tremendous opportunities to sustain and...

Mar 15, 2009 - Poly(ester urethane) urea foams with enhanced mechanical and biological properties - Patent
A biodegradable polyurethane scaffold that includes a HDI trimer polyisocyanate and at least one polyol; wherein the d. of said scaffold is from about...

Mar 15, 2009 - Production of laminated composites and packaging articles - Patent
The invention relates to an unexpectedly unique environmentally friendly composite structure and storage article fabricated therefrom. The composite...

Mar 08, 2009 - Biodegradable agricultural film. - Patent
A degradable plastic film for use as an agricultural mulch film comprises two longitudinal bands each adjacent to a resp. longitudinal edge of the...

Mar 08, 2009 - Biodegradable nanocomposites with improved physical properties created via solid-state shear pulverization - Technical Paper
Production of biodegradable PCL/montmorillonite nanocomposites by solid-state shear pulverization lead to composites with reduced oxygen permeation,...

Mar 08, 2009 - Nanoparticle-coated medical devices and formulations for treating vascular disease - Patent
The present invention relates to an implantable medical device that includes a coating contg. a plurality of nanoparticles, wherein the nanoparticles...

Mar 08, 2009 - The effect of hyperbranched polymers on processing and thermal stability of biodegradable polyesters - Technical Paper
Nanomodification of PHB, with hyperbranched polymers (HBP), was studied. Solid-hyperbranched polyesters of different generations were incorporated...

Mar 01, 2009 - Nano-biocomposites: Biodegradable polyester/nanoclay systems. - Technical Paper
In the recent years, bio-based products have raised great interest. Consequently, biopolymers, i.e., biodegradable polymers, have been the topic of...

Mar 01, 2009 - Nanocomposite polymer hydrogels - Technical Paper
The technological need for new and better soft materials as well as the drive for new knowledge and fundamental understanding has led to significant... (1 Member Reaction)

Mar 01, 2009 - Recent developments in intelligent biomedical polymers - Technical Paper
Intelligent polymers or stimuli-responsive polymers may exhibit distinct transitions in properties, including conformation, polarity, phase structure...

Feb 15, 2009 - Biodegradable composite, product made therefrom, and method of manufacture thereof. - Patent
Biodegradable composites and products, and methods of their manuf. are presented. The composites typically comprise 10 wt % to 80 wt % of a...

Feb 15, 2009 - The second green revolution? Production of plant-based biodegradable plastics - Technical Paper
Biodegradable plastics are those that can be completely degraded in landfills, composters or sewage treatment plants by the action of naturally...

Feb 08, 2009 - Biodegradable composite, product made therefrom, and method of manufacture thereof - Patent
Biodegradable composites and products, and methods of their manufacture. The composites typically comprise 10 to 80 wt% of a lignocellulosic material...

Feb 08, 2009 - Properties of new biodegradable plastics for mulching, and characterization of their degradation in the laboratory and in the field - Technical Paper
One of the more important by-effects of Mediterranean Horticulture is the serious drawback of vast quantities of wastes caused by the extensive use of...

Feb 02, 2009 - Super-tough poly(lactic acid) materials: Reactive blending with ethylene copolymer. - Technical Paper
PLA is well known as a biocompatible, bioresorbable, and biodegradable polymer superior to petrochem. polymers from the standpoint of total energy...

Feb 01, 2009 - Crop-based biodegradable packaging and its environmental implications - Technical Paper
With the sharp rise in global prices for petroleum, growing concerns about the depletion of non-renewable raw materials and the worldwide interest in...

Feb 01, 2009 - Performance and Environmental Impact of Biodegradable Films in Agriculture: A Field Study on Protected Cultivation - Technical Paper
The performance and biodegradability in soil and the environmental impact of biodegradable starch-based soil mulching and low tunnel films were...

Feb 01, 2009 - Polycarbonate-polyester block copolymer compositions, methods, and articles - Patent
A polycarbonate-polyester block copolymer includes a PC block and a PE block, each having specific structures. The block copolymer can be prepared,...

Jan 25, 2009 - A polyurethane-gelatin hybrid construct for manufacturing implantable bioartificial livers - Technical Paper
A novel 3D hybrid construct was developed for liver manufacture by depositing biodegradable polyurethane (PU) and a naturally derived polymer gelatin...

Jan 25, 2009 - Biologically derived composite tissue engineering such as joint - Patent
The present application is directed to engineering of tissues, especially composite tissues such as a joint. Various aspects of the application...

Jan 25, 2009 - Compatibility and biocompatibility study of new HPC/PU blends. - Technical Paper
Polymer blending is one of the most useful methods for the improvement or modification of the properties of polymeric materials without altering the...

Jan 18, 2009 - Vapor-deposited biocompatible coatings which adhere to various plastics and metal. - Patent
The present invention relates to a method of providing a biocompatible PEG-comprising coating on a substrate, without the use of an underlying...

Jan 11, 2009 - Aligned carbon nanotubes for multifunctional nanocomposites and nanodevices: from plastic optoelectronics to bioceramics - Technical Paper
A review. Carbon nanotubes are very attractive for a wide range of potential applications. However, many applications require the growth of...

Jan 11, 2009 - Novel biodegradable nanocomposites - Patent
Biodegradable compositions of clay, diphosphates and biodegradable polymers are described. The diphosphates may be resorcinol diphosphate or...

Dec 28, 2008 - Heat-resistant bioactive composition comprising proteins - Patent
The present invention relates to compositions and processes thereof for stabilizing bioactive materials, and in particular to thermal treatments for...

Dec 14, 2008 - The Effect of Fiber Pretreatment and Compatibilizer on Mechanical and Physical Properties of Flax Fiber-Polypropylene Composites - Technical Paper
Recently, investigations have been conducted on the use of natural fibers as reinforcement in thermoplastics to improve their mechanical properties. ...

Nov 30, 2008 - Characterization of novel biocomposites developed through sandwich injection molding - Technical Paper
Composites made from bioresources are under major development due to the acute environmental/energy issues. A suitable processing technique is a...

Nov 23, 2008 - Biodegradable matrix materials comprising aminated polysaccharide - Patent
The invention provides biodegradable matrix materials. The matrix materials of the invention are useful in a variety of applications such as to make...

Nov 16, 2008 - New Polyesters Using 2-Ketogluratic Acid as a Building Block from Sustainable Feedstocks - Conference
Novel biobased materials have attracted increasing interest in recent years. Biobased materials from renewable resources not only hold a variety of...

Nov 09, 2008 - Biodegradable nanoparticles - Technical Paper
A review on the application of nanotechnology to deliver therapeutic or diagnostic agents using biodegradable polymeric nanoparticles for systemic,...

Nov 09, 2008 - Fabrication strategies and potential applications of the "green" microstructured optical fibers - Technical Paper
Biodegradable optical fibers have been created using synthetic biomaterials such as PLA, PCL, and cellulose derived polymers. Original processing...

Nov 09, 2008 - Hybrid process for fabricating 3D hierarchical scaffolds combining rapid prototyping and electrospinning - Technical Paper
An ideal scaffold should have good mechanical properties and provide a biological functional implant site. A rapid prototyping system has been...

Nov 09, 2008 - Method for the production of the biodegradable polymers - Patent
The invention relates to a method for the production a biodegradable polymer of cyclic esters in particular for medical applications. The method is...

Nov 09, 2008 - Novel elastomers for biomedical applications - Technical Paper
A review on some novel biodegradable polyester elastomers, biodegradable polyurethanes, silicone rubbers with some surface and bulk modification, and...

Sep 07, 2008 - Transparent nanocomposites based on cellulose produced by bacteria offer potential innovation in the electronics device industry - Technical Paper
Bacterial cellulose (BC) pellicles consist of a layered structure of planar nanofiber networks, which enables the manufacture of optically transparent...

Aug 31, 2008 - Hydrogel nanocomposites as remote-controlled biomaterials - Technical Paper
Nanocomposite hydrogels are a new class of intelligent materials which have recently attracted interest as biomaterials. In this study, magnetic...

Aug 31, 2008 - Recent advancements in biomaterials and medical devices, aiming to improve consistently the outcomes of therapeutic approaches within spine/cord injury - Technical Paper
We emphasize some implantable "smart", tissue engineering biomaterials and resp., advanced devices, with important healing potential in spine and/or...

Aug 24, 2008 - Partially bioabsorbable implant - Patent
The present invention relates to an at least partially biodegradable medical implant, comprising a plurality of in-vivo biodegradable org. polymer...

Aug 17, 2008 - Progress in biodegradable poly-3-hydroxyalkanoate (PHA) polymer production: Cost reduction investigations - Conference
Microbiologically produced poly-3-hydroxyalkanoate (PHA) polymers are a well known biodegradable materials with physical characteristics comparable to...

Aug 05, 2008 - Closed photobioreactor system for continued daily in situ production, separation, collection, and removal of ethanol from genetically enhanced photosynthetic organisms - Patent
The invention provides a device (photobioreactor) for growing genetically enhanced aquatic photoautotrophic organisms (i.e., algae) in a stable...

Aug 05, 2008 - Stents having biodegradable polymeric layers. - Patent
A method for preparing a laminate coronary stent is described, comprising (i) providing a stent framework and (ii) depositing a plurality of layers on...

Jul 13, 2008 - Recent advances in reactive extrusion processing of biodegradable polymer-based compositions - Technical Paper
This review reports on recent advances in the design of biodegradable polymers built from petroleum and renewable resources using reactive extrusion...

Jun 29, 2008 - A potential material for tissue engineering: Silkworm silk/PLA biocomposite - Technical Paper
PLA is a well recognized biodegradable polymer. However it lacks ductility. We have successfully reinforced PLA by silkworm silk fibers to form a...

Jun 08, 2008 - Development of Polyurethane and Unsaturated Polyester Resins from Soy Oil - Conference
Research on the use of soybeans to produce polyurethane polyols and unsaturated polyester resins has been funded by the United Soybean Board (USB). ...

May 26, 2008 - Biodegradable nanocomposites with improved physical properties created via solid-state shear pulverization - Conference
Nanocomposites are an inexpensive and efficient way to produce polymeric materials with new or improved properties. Here, solid-state shear...

May 26, 2008 - Chemical additives to make polymeric materials biodegradable - Patent
The new additive material is physical blended with polymeric material to create at least a partially biodegradable product. The title additive... (1 Member Reaction)

May 26, 2008 - Improving weldline strengths of injection moulded parts by ultrasonic oscillation - Technical Paper
Injection molding has been one of the most important methods for the manuf. of plastic products. However, there are several unsolved problems that...

May 18, 2008 - Polylactic acid stereocomplex compositions and methods for making and using same - Patent
Thermoformed PLA stereocomplex parts are made using a PLA stereocomplex composition having a highest crystallization melting temperature from 200 to...

May 18, 2008 - Wood-plastic composites as promising green-composites for automotive industries - Technical Paper
Wood-plastic composite (WPC) is a very promising and sustainable green material to achieve durability without using toxic chems. The term WPCs refers...

May 04, 2008 - A three-dimensional microfabrication system for biodegradable polymers with high resolution and biocompatibility - Technical Paper
Biodegradable PLA polymers are already widely used in medicine. While further applications are eagerly awaited, progress has been impeded by a lack...

May 04, 2008 - Characterization of protein-coated polypropylene films as a novel composite structure for active food packaging application - Technical Paper
Plasticized protein coatings on PP film were prepared and studied for their optical and tensile properties as affected by protein and plasticizer...

May 04, 2008 - Impact modified polylactide resins - Patent
PLA resins are blended with core-shell rubber particles to improve impact strength. A good balance of impact strength and transparency is achieved...

May 04, 2008 - Polylactic acid films for food packaging applications - Patent
Fresh produce and cut flower packages are prepared from one or more polymer layers, at least one layer comprising a PLA film. Layers that can be...

Apr 20, 2008 - Synthesis of aliphatic-aromatic copolyesters by a melting bulk reaction between poly(butylene terephthalate) and DL-Oligo(lactic acid). - Technical Paper
PLA oligomers (PLAO) readily reacts with PBT in the melt leading to the formation of high MW poly(1,4-butylene terephthalate-co-DL-lactide) (BLA)...

Apr 13, 2008 - Sterilization indicator - Patent
This invention relates to a sterilization indicator and a process to concentration signal generated by constraining it to a minimal surface, in a...

Apr 06, 2008 - Bioresorbable composition and a medical device comprising said composition. - Patent
The invention provides a bioresorbable composition comprising a mixture of at least one polymer selected from polyesters, polylactides, polyamides,...

Apr 06, 2008 - Flame retardant rubber-modified styrene resin composition - Technical Paper
LLDPE was blended with esterified SMA (ESMA) to improve the environmental degradability characteristics of LLDPE. ESMA was synthesized by esterifying...

Mar 30, 2008 - Monovinylidene aromatic polymers containing nonfunctionalized, nonmineral oil - Patent
GPPS and HIPS are plasticized with a nonfunctionalized, nonmineral oil, e.g., a vegetable oil such as canola oil, cottonseed oil or the like. The...

Mar 30, 2008 - Natural fiber reinforced polymer/clay aerogels - Conference
Aerogels are the lightest and lowest density solids known, typically comprised of ca. 98% air and 2% solid material. Na-Montmorillonite clay aerogels...

Mar 30, 2008 - Novel bioplastics and biocomposites from agricultural oils and coproducts - Conference
Iowa State University researchers have developed very simple procedures for the synthesis of industrially promising biopolymers ranging from...

Mar 23, 2008 - Preparation and properties of biodegradable network poly(ester-carbonate) elastomers - Technical Paper
Biodegradable elastomeric network poly(ester-carbonate)s were prepared from multifunctional aliphatic carboxylic acids such as tricarballylic acid...

Mar 23, 2008 - Selection criteria for recycled polyolefins from urban wastes by using TG analysis - Technical Paper
The thermal behavior of a mixture of recycled polyolefins (PE/PP mix), variously colored recycled polyolefins, recycled polyolefin blends and recycled...

Feb 17, 2008 - Poly(propylene carbonate), old CO2 copolymer with new attractiveness - Technical Paper
The catalytic synthesis of poly(propylene carbonate) (PPC) from propylene oxide and CO2 is mediated by zinc glutarate and chromium salen complexes. ...

Jan 27, 2008 - The role of joint viscoelastic function in the adhesion of low-density polyethylene to thermoplastic starch - Technical Paper
Measured adhesion energies of LDPE to thermoplastic starch (TPS) joint and of joints in presence of EVA, PE-g-MAH and SEBS-g-MAH compatibilizers were...

Jan 09, 2008 - Hydroxy-containing polyesters from waste and biorenewable raw materials for manufacture of polyurethane plastics - Technical Paper
PET waste was glycolized with diethylene glycol, optionally with trimethylolpropane, at 220 degC. The product was reacted with diphenylmethane...

Dec 30, 2007 - A polymer matrix comprising metal particles for use in medical devices - Patent
The present invention relates to a polymer matrix, characterized in that it comprises (a) an electron donating constituent and (b) metal particles...

Dec 30, 2007 - Polylactic acid-containing resin compositions and articles formed therefrom - Patent
A PLA-containing resin compn. includes (a) a PLA and (b) a (meth)acrylic copolymer having a MW in excess of 30,000 and that is the reaction product of...

Dec 24, 2007 - Solid phase dispersion and processing of micro-and nano-cellulosic fibres in plastic phase to manufacture bio-nanocomposite products of commercial interest - Patent
In this invention a novel process has been developed to disperse cellulosic microfibres and nanofibres in solid phase into a molten plastic matrix or...

Dec 16, 2007 - Biodegradable heat-shrinkable film and production method thereof - Patent
The present invention relates to a biodegradable heat-shrinkable film for shrinkable label of vessel having printing property, sealable, transparency...

Dec 16, 2007 - Carpet tiles for floorings with environment friendly properties, comprising carpets having a backing from particles of recyclable, biobased, biodegradable or environmentally responsible materials and manufacture thereof - Patent
The carpet tiles (A1) comprise a carpet upper surface disposed in overlaying relation to a single or multilayered backing, wherein the backing...

Dec 16, 2007 - Compatibilizing effect of maleic anhydride grafted Styrene-Ethylene-Butylene-Styrene (MAH-g-SEBS) on the polypropylene and wood fiber composites - Technical Paper
PP/WF composites were compatibilized by MAH-g-SEBS. The blending was performed on a twin-screw extrusion, followed by an injection molding. The...

Dec 16, 2007 - Polylactic acid composition, transparent heat resistant biodegradable molded article, and making polylactic acid molded article - Patent
A biodegradable composition includes PLA, and a biodegradable nucleating polymer (0.1-10%). The biodegradable nucleating polymer is used as a...

Dec 16, 2007 - Transparent blends of polypropylene carbonate and polylactide - Patent
Transparent blends comprise (a) 1-99 parts of PP carbonate having a Mn of 30,000-5,000,000, (b) 99-1 parts of PLA, (c) 0.1-25 parts of an additional... (1 Member Reaction)

Dec 09, 2007 - Miscibility and biodegradability studies of polystyrene/linseed oil epoxy blend derived from a sustainable resource - Patent
This study highlights the utilization of linseed oil epoxy (LOE) (a product from a sustainable resource), to obtain blends of LOE with PS forming...

Dec 02, 2007 - Method of treating a plastic article - Patent
This invention relates to method of impregnating a plastic article with a drug. Accordingly at least a portion of the surface of a plastic article is...

Dec 02, 2007 - Polymeric blend comprising polylactic acid, vinyl polymers, polyetheramide, and articles from it - Patent
A blend of the current invention comprises at least 50 wt. % PLA and at least 5 wt. % of polymer selected from one or more of: (i)...

Nov 25, 2007 - Effect of recycling on the thermal properties of polymers - Technical Paper
The continuous increase in the utilization of polymeric materials in many useful short-life applications has demanded the attention of researchers...

Nov 25, 2007 - Novel biodegradable polymer additive compositions useful for the preparation of biodegradable plastic and a process for the preparation of said composition - Patent
The invention disclosed a novel biodegradable additive polymer composition useful for the preparation of biodegradable plastic products which... (1 Member Reaction)

Nov 18, 2007 - Novel biodegradable polymer composition useful for the preparation of biodegradable plastic and a process for the preparation of said composition - Patent
The invention disclosed in this application relates to a novel biodegradable additive polymer composition useful for the preparation of biodegradable...

Nov 11, 2007 - Multiple Uses for Polylactic acid as a Commodity Material - Conference
Renewable resource polymeric materials are of enormous interest and have generated large amounts of research and interest focusing primarily on...

Nov 11, 2007 - New Bioplastics and Biocomposites for the Transportation Industry - Conference
The Larock group at Iowa State University has developed a very simple procedure for the synthesis of industrially promising biopolymers ranging from...

Nov 11, 2007 - Syntheses of biodegradable vinyl polymers by insertion of N-benzyl-4-vinylpyridinium chloride into the main chain - Technical Paper
PMMA, PVA, PAN, PS, and nylon were made biodegradable by insertion of N-benzyl-4-vinylpyridinium chloride (BVP) into the main chain. For example, the...

Nov 04, 2007 - Fabrication, morphology and properties of soybean oil-based composites reinforced with continuous glass fibers - Technical Paper
Novel thermosetting composites were successfully prepared using glass fiber as a reinforcement for soybean and LoSatSoy oil-based resins prepared by...

Oct 07, 2007 - Individualized cellulose strands nano-dispersion in polyolefins for production of biodegradable plastic articles - Patent
The present invention describes: a cellulose-based composite where individualized strands are homogeneously nano-dispersed in a polyolefin matrix; a...

Oct 07, 2007 - Protective covers that are disposable, biodegradable or recyclable - Patent
A thermoformed cover for an appliance comprising a thermoplastic degradable sheet material which is thermoformed into a shape that engages with the...

Sep 30, 2007 - Poly(lactic acid)/polystyrene bioblends characterized by thermogravimetric analysis, differential scanning calorimetry, and photoacoustic infrared spectroscopy - Technical Paper
Bioblends are composites of at least one biodegradable polymer with nonbiodegradable polymer. Successful development of bioblends requires that the...

Sep 23, 2007 - Designing injection molded bioplastics products - Conference
The ongoing need to keep reducing trial-and error in product design definitely applies to plastics products, and perhaps even more to bioplastics. It...

Sep 16, 2007 - Block copolymers of styrene and lactide with varying lactide content - Conference
PLA is derived from renewable resources and it is bio-degradable. The unique degradation properties of PLA has attracted a great amount of attention...

Sep 16, 2007 - Magnetically actuable polymer nanocomposites for bioengineering applications. - Technical Paper
Methods are presented for creating biocompatible composites with magnetic functionality by incorporating magnetic nanoparticles in a biodegradable...

Sep 16, 2007 - Non-toxic biofilm inhibitor - Patent
The present invention relates to a composition and method for preventing or inhibiting biofilm formation on biotic or abiotic surfaces. The...

Sep 16, 2007 - Polylactide based nanostructured biomaterials and their applications - Technical Paper
A review. PLA is one of the most innovative materials being actively investigated for a wide range of industrial applications. The polymer is a...

Sep 16, 2007 - Wheat gluten-based biomaterials: composites and nanocomposites - Conference
Wheat gluten is an attractive agropolymer to form bioplastics because of its high availability and its good material-forming properties. Wheat gluten...

Sep 09, 2007 - Device with nanocomposite coating comprising polymeric matrix and metal particles for controlled drug release. - Patent
An implantable medical device including a nanocomposite coating deposited on at least a portion of a surface to provide a controlled release of a...

Sep 09, 2007 - Toxicology and cellular effect of manufactured nanomaterials for cancer treatment - Patent
The increasing use of nanotechnology in consumer products and medical applications underlies the importance of understanding its potential toxic...

Sep 02, 2007 - Biodegradable anhydride-contg. polyesters - Patent
The present invention relates to new biodegradable polymers. These polymers comprise biodegradable polyester-based prepolymers, to which...

Sep 02, 2007 - Biomimetic scaffolds made from biodegradable nanofibers covalently linked with extracellular matrix and/or animal growth factors and entrapped cells - Patent
The invention provides a composition comprising a nanofiber polymer in which the fibers of the nanofiber polymer are aligned, and a molecule is...

Aug 25, 2007 - Polymeric biomaterials: Strategies of the past vs. strategies of the future. - Technical Paper
This contribution analyzes briefly the past and present of polymer-based prosthetic devices. Starting from the concept of biomaterials, from the...

Aug 18, 2007 - Improving food protection by the addition of natural antioxidant compounds into food contacting polymers - Technical Paper
Polymer formulations to manufacture food packages generally include a mixture of synthetic antioxidants to reduce degradation of the material during...

Aug 18, 2007 - Low cost, highly reactive biopolyols for the urethane industry: A coproduct of the emerging biodiesel economy - Conference
Over several billion pounds of petroleum-derived polyols are consumed in the US annually in a myriad of polyurethane applications such as foams,...

Aug 13, 2007 - Novel bioplastics and composites from natural oils - Conference
The Larock group at Iowa State U. has developed a very simple procedure for the synthesis of industrially promising biopolymers ranging from...

Aug 13, 2007 - Plastics as sources of new global pollutants - Conference
Up to the present, plastics have been considered chemically stable and hygienically safe materials. Still, polymer degradation in nature remains but...

Jul 23, 2007 - Effect of crystallinity on electrical conduction characteristics of poly(L-lactic acid). - Technical Paper
The crystallinity of PLA was changed by thermal annealing and its effects on electrical conduction characteristics were studied. Low-crystallinity...

Jul 22, 2007 - Elastic laminate made with absorbent foam - Patent
An absorbent elastic laminate includes an elastic backing layer and a flexible thermoplastic absorbent foam layer. The flexible absorbent foam layer...

Jul 22, 2007 - Methods for high throughput screening of polymer materials for medical devices - Patent
The present invention provides a system for high-throughout screening of a polymeric formulation for implantable and insertable medical devices...

Jul 15, 2007 - Microorganism biodegradable resin compositions and plastic products made thereof - Patent
Disclosed is a biodegradable resin composition, which is biodegraded by microorganisms and naturally degraded by oxidation. Specifically, the...

Jun 03, 2007 - Composite polymeric materials from renewable resources - Patent
Disclosed are environmentally friendly polymeric composite materials and products that can be formed from the composites. The polymeric composites...

May 08, 2007 - Novel thermoplastic composites from commodity polymers and man-made cellulose fibers - Technical Paper
A new class of fiber reinforced commodity thermoplastics suited for IM and direct processing applications has been developed using man-made cellulosic...

Jan 02, 2007 - High volume production of environmentally friendly biocomposites by sheet molding compounding - Conference
Biocomposites were made by a novel high volume processing technique named 'biocomposite sheet molding compound panel (BCSMCP) manufacturing process. ...

Dec 24, 2006 - Performance evaluation of PLA against existing PET and PS containers - Technical Paper
PLA is a environmentally-friendly biodegradable plastic that has garnered growing attention in the past few years as food packaging materials since...

Dec 17, 2006 - High volume production of environmentally friendly biocomposites by sheet molding compounding - Conference
Biocomposites were made by a novel high volume processing technique named 'biocomposite sheet molding compound panel (BCSMCP) manufacturing process. ...

Nov 22, 2006 - Packaging materials - Patent
A biodegradable packaging material and methods of manufacturing the same are provided in which a biodegradable substrate and a biodegradable polymer...

Nov 22, 2006 - Wood-fiber-reinforced poly(lactic acid) composites: evaluation of the physicomechanical and morphological properties - Technical Paper
This article presents the results of a study of the processing and physicomechanical properties of environmentally friendly wood-fiber-reinforced PLA...

Nov 12, 2006 - Systems, polymer compositions, and preparations for bio-based polyurethane foams. - Patent
The bio-based polyurethane foams are for use in residential and commercial insulation industries, packaging industries and molding industries. The...

Oct 22, 2006 - Effects of soaking and freezing on composites made from wood-based fillers and biodegradable plastics - Technical Paper
Biodegradable plastic composites were subjected to prolonged soaking and freezing treatments to assess the effects on the mechanical performance. ...

Oct 01, 2006 - Latest trends in biodegradable plastics - Technical Paper
A review of biodegradable polyester plastics with special attention to biologically generated polymers such as PLA and PHB. By compounding and...

Sep 10, 2006 - Fire-resistant durable lactic acid resin compositions and injection molded products thereof - Patent
The compositions of this invention consist of (A) PLA, (B) Al(OH)3 surface-treated with silane coupling agents, and (C) carbodiimide compounds in the...

Sep 10, 2006 - Lactic acid polymer-based resin compositions having good moldability - Patent
The compositions of this invention contain mainly PLA rubber particles, plasticizers, nucleating agents, flame retardants, fillers, stabilizers, and...

Jul 16, 2006 - Biobased polymer composites for films and coatings - Technical Paper
Heterogeneous multicomponent biocomposites were prepared through incorporation of plasticizers, renewable fillers, and compatibilizers. These...

Jun 28, 2006 - How to Design New Polymers for Biomedical, Energy-Related, or Photonic Applications - Conference
The classical method for producing polymers with new combinations of properties is to polymerize new monomers or find novel methods for the...

Jun 12, 2006 - Novel cellulose fibre reinforced thermoplastic materials - Technical Paper
Spun cellulose fibers from the lyocell and carbamate processes have been used to reinforce thermoplastic commodity polymers, such as PP, PE, and HIPS...

May 21, 2006 - Kenaf-fiber-reinforced poly(lactic acid) used for electronic products - Technical Paper
High-performance biomass-based composites were fabricated with PLA and kenaf fibers, which fixate CO2 efficiently. The composites show good thermal...

Apr 23, 2006 - Biodegradable barrier coating on paperboard; effects on biodegradation, recycling and incineration. - Technical Paper
Environmental demands set new pressure to packaging materials. Biodegradable coating is an alternative for polyethylene in barrier boards. In this...

Apr 23, 2006 - Biodegradable polylactic acid blown films for packaging and labeling - Patent
PLA films are free of plasticizers and additives and thus do not have migration issues making them excellent materials for food packaging.

Apr 23, 2006 - Bionanofabrication: a tool for creating unique structures through in vitro polymer synthesis - Technical Paper
Current "top-down" technologies for the fabrication of nanoscale structures are limited in terms of the feature size that can be achieved. Natural...

Apr 23, 2006 - Flame-retardant biodegradable material, manufacturing, flame-retardant biodegradable polymeric composition, molded product, and disposal method allowing biodegradation - Patent
A flame-retardant biodegradable material is prepared by melt kneading Me3SiO[(Me2SiO)4CH2CH2O2C(CH2)4CO2(CH2)4O]nSiMe3 with PLA

Apr 23, 2006 - Micro- and nano-fabrication of biodegradable polymers - Technical Paper
This paper reviews micro- and nano-fabrication technologies for biodegradable polymers, including laser micromachining, nanosphere lithography,...

Apr 23, 2006 - Thermal degradation and biodegradability of poly (lactic acid)/corn starch biocomposites - Technical Paper
Thermal degradation and biodegradability of PLA and PLA/corn starch (PLA/CS) composites with and without lysine diisocyanate (LDI) were evaluated by...

Apr 17, 2006 - Compatibilization of starch-polyester blends using reactive extrusion - Technical Paper
Maleic anhydride (MA) and dicumyl peroxide (DCP) were used for reactive blending of starch and a biodegradable synthetic polyester. Optical...

Apr 17, 2006 - Polymer genomics - Technical Paper
Biological activities of biocompatible synthetic polymers used in drug delivery, gene delivery, vaccine development or biomaterial surface...

Apr 10, 2006 - An extrusion process - Patent
A biodegradable polymer film is made by mixing pellets of starch and of PVA together in an extruder. The resulting film is readily biodegradable,...

Apr 10, 2006 - Assessment and applications of multi-degradable polyethylene films as packaging materials - Technical Paper
Degradation performance of environmentally friendly plastics that can be disintegrated by combination of sunlight, microbes in soil, and heat produced...

Apr 10, 2006 - Modification of Waste PET by Using PLA and Hydrolytic Stability - Technical Paper
The purpose of this study is the manufacture of biodegradable copolymers of waste PET. To achieve this, we modified PET using PLA. Modification...

Apr 04, 2006 - Acquired biodegradability of polyethylenes containing pro-oxidant additives - Technical Paper
Biodegrability of HDPE and LDPE containing a mixture of antioxidants and pro-oxidants was studied with defined microbial strains. After an abiotic...

Apr 04, 2006 - Biodegradable aliphatic polyester-based materials: Tunable functional elastomers - Technical Paper
There are two general classes of degradable polyester-based elastomers: thermoplastics and thermosets. Amorphous thermoset materials can be made...

Apr 04, 2006 - Biodegradable ceramic-polymer composite and fibers - Patent
A ceramic-polymer composite comprising nano-particles that are contained within a network of a natural polymer which network is formed by means of...

Apr 04, 2006 - Biodegradable packaging based on raw materials from crops and their impact on waste management - Technical Paper
Packaging waste forms a significant part of municipal solid waste and as such has caused increasing environmental concerns, resulting in strengthening...

Apr 04, 2006 - Biodegradable paper-based cup or package and production method - Patent
THis invention is a biodegradable laminate suitable for use in shaped paper-based articles such as containers for hot and cold liquids, food products,...

Apr 04, 2006 - Biodegradable polylactic acid blown films for packaging and labeling - Patent
PLA films are biodegradable and substantially free of plasticizers making them excellent packaging materials.

Apr 04, 2006 - Composite containing biodegradable polymers and vegetable fibers and molding using the same - Patent
A composite composition containing at least one biodegradable polymer, vegetable fibers, and a hydrolysis inhibitor.

Apr 04, 2006 - Poly(vinyl chloride) and poly( -caprolactone) blends for medical use - Technical Paper
This study examines the possibility of replacing partially or totally the phthalate plasticizer from the PVC intended for medical devices, with...

Mar 19, 2006 - Effect of compatibiliser on the biodegradation and mechanical properties of high-content starch/low-density polyethylene blends - Technical Paper
A high-content starch/LDPE blend with acceptable biodegradability and mechanical properties was produced by adjusting the compatibility of the blend...

Feb 12, 2006 - Study of biodegradable polylactide/poly(butylene adipate-co-terephthalate) blends - Technical Paper
PLA and PBAT are biodegradable polymers. They are thermoplastics which can be processed using most conventional polymer processing methods. PLA is...

Jan 16, 2006 - Plasticized PLA/clay nanocomposites. II. The effect of aging on structure and properties in relation to the filler content and the nature of its organo-modification - Technical Paper
Plasticized PLA - layered silicate nanocomposites were obtained by melt blending PLA with polyethylene glycol as plasticizer (20 wt %) and with...

Jan 04, 2006 - Preparation of poly(lactic acid) composite hollow spheres with an open channel - Technical Paper
Novel hollow spheres for bone fillers incorporating cells were prepd. using composites consisting of poly(lactic acid) and calcium carbonates. An...

Dec 04, 2005 - Green polymer chemistry: An overview - Technical Paper
Green chemistry is pollution prevention at the molecular design level that eliminates the use or generation of hazardous chemicals. With increasing...

Dec 04, 2005 - Preparation and characterization of electroactive biopolymers - Technical Paper
Biopolymers have the potential for use as a matrix for applications such as controlled release devices, environmentally sensitive membranes, mimic...

Dec 04, 2005 - Reactive blending of poly(L-lactic acid) with poly(ethylene-co-vinyl alcohol). - Technical Paper
Poly(lactic acid) (PLA) was blended with EVOH in the presence of an esterification catalyst to induce reaction between the hydroxyl groups of EVOH and...

Nov 07, 2005 - Development of biodegradable laminate films derived from naturally occurring carbohydrate polymers - Technical Paper
A review of new laminates based on modified starch and poly(lactic acid) (PLA), which are anticipated to present good water and gas-barrier...

Oct 16, 2005 - Micromechanics of shelf-aged and retrieved UHMWPE tibial inserts: Indentation testing, oxidative profiling, and thickness effects - Technical Paper
Microtomed sections of two UHMWPE tibial bearings, one that had been irradiation sterilized and shelf-aged, and the other irradiation sterilized and...

Sep 25, 2005 - Evaluation of oriented poly(lactide) polymers vs. existing PET and oriented PS for fresh food service containers - Technical Paper
The purpose of this study was to investigate and compare oriented PLA (OPLA) with PET and OPS in food packaging. Exposure of the materials to...

Sep 11, 2005 - Biodegradable starch/clay nanocomposite films for food packaging applications - Technical Paper
Novel biodegradable starch/clay nanocomposite food packaging films were obtained by homogeneously dispersing montmorillonite nanoparticles in...

Sep 04, 2005 - Current Progress on Biodegradable Materials Based on Plasticized Starch - Technical Paper
This paper presents current progress on biodegradable materials that are based on plasticized starch. To improve the hydrophobic character of the...

Aug 14, 2005 - Coupling effect of lysine-based isocyanate on properties of bio-composites - Technical Paper
Recently, biocomposites from biodegradable polymers and natural fibers have actively developed with great interests in the composite science. These...

Jul 13, 2005 - Biodegradable and functionally superior starch-polyester nanocomposites from reactive extrusion - Technical Paper
Biodegradable starch-polyester composites are useful in many applications. However the amount of starch that can be blended with polyesters without...

Jul 03, 2005 - Effect of additives on encapsulation efficiency, stability and bioactivity of entrapped lysozyme from biodegradable polymer particles - Technical Paper
Low encapsulation efficiency and erratic release profiles are the most common features of controlled released protein delivery systems employing...

Jun 19, 2005 - Protein-Based Thermoplastic Elastomers - Technical Paper
Investigations of high MW recombinant protein triblock copolymers demonstrate unique opportunities to systematically modify material microstructure on...

May 29, 2005 - Polymer encapsulation of fine particles by a supercritical antisolvent process - Technical Paper
Coating and encapsulation of nano-particles with polymer using a supercritical antisolvent coating process was investigated in this research. ...

Apr 24, 2005 - Agri-plastics: fibres and plastics from corn - Technical Paper
Will the absorbency advantage of cellulose prevail over the thermoplasticity advantage of PLA? This paper compares and contrasts the two main...

Apr 17, 2005 - Plasticization of poly(lactic acid) with oligomeric malonate esteramides: dynamic mechanical and thermal film properties - Technical Paper
Two oligomeric malonate esteramides and an oligomeric malonate ester were synthesized and evaluated as plasticizers for PLA.

Feb 08, 2005 - Stent comprising a coating system with drug and biodegradable carrier - Patent
The invention is a stent having a peripheral wall that is at least partially covered with a one polymer carrier and a pharmacologically active...

Nov 21, 2004 - Biodegradable bicomponent fibers with improved thermal-dimensional stability - Patent
These fibers may be produced by co-spinning an aliphatic polyester material along with PLA to obtain a fiber with improved properties. The fibers are...

Nov 21, 2004 - Biodegradable soy protein-polyester blends by reactive extrusion process - Technical Paper
Blends of soy protein and biodegradable polyester were prepared in an extruder by using glycerol as a compatibilizing agent. The new biodegradable...

Nov 21, 2004 - Crystallization behavior of degradable poly(butylene succinate) ionomers and their biocompatibility - Technical Paper
Poly(butylene succinate) (PBS) ionomers were synthesized by two-step melt polymn. The rate of biodegradation is proportional to ion content. Culture...

Nov 21, 2004 - New method of synthesis of poly(ester amide)s derived from the incorporation of glycolic acid residues into aliphatic polyamides - Technical Paper
New poly(ester amides) having high MW and excellent properties are useful as high performance biodegradable plastics for medical applications.

Nov 21, 2004 - Novel citric acid-based biodegradable elastomers for tissue engineering - Technical Paper
The synthesis and characterization of a novel biodegradable elastomer, poly(1,8-octanediol-co-citric acid) is described. This elastomer has potential...

Nov 21, 2004 - Synthesis and characteristics of biodegradable copolyesters from the transesterification of poly(butylene adiptate-co-succinate) and poly(ethylene terephthalate). - Technical Paper
New biodegradable polyesters having improved properties are produced by transesterification/coextrusion carried out at 280 deg.C without a catalyst.

Nov 21, 2004 - Water dispersible commode/bedpan liner - Patent
The liner may be flushed after use. The liner is a two layer co-extruded film consisting of a water soluble polymer and a polymer that contains a...

Nov 14, 2004 - Biodegradable polymers - Patent
The biodegradable plastics of this invention contain phosphorus incorporated using chain-transfer agents having at least one P-H bond. The polymers...

Nov 14, 2004 - Chemistry of polymer biodegradation and implications on parenteral drug delivery - Technical Paper
Most polymeric implants are biodegraded by one of two common mechanisms; i.e., hydrolysis and oxidation. The chemical structure is among the most...

Nov 14, 2004 - Environmental degradation of polyethylene - Technical Paper
The rate of PE degradation if facilitated by blending with biodegradable additives and photo-initiators or by copolymerization of ethylene with... (2 Member Reactions)

Oct 04, 2004 - Plastics filled with agrowastes - Technical Paper
This paper summarizes the properties of plastics filled with agricultural waste products including rice husk, jute fiber, coconut coir, wood flour,...

Sep 30, 2004 - Biodegradable polylactic acid polymers for textile applications - Technical Paper
PLA is manufactured from renewable resources, is low cost giving it the potential to become a commodity plastic. Its unique property balance have...

Sep 16, 2004 - Emulsion-based control of electrospun fiber morphology - Conference
Electrospinning (ES) is a process through which fibers with micron or sub-micron diameters are extruded by an electrostatic potential from a polymer...

Sep 07, 2004 - Biobased resin as a toughening agent for biocomposites - Technical Paper
Biocomposites can be designed and engineered from plant bio-fibers and a blend of unsatd. polyester resin and derivatized vegetable oil to replace...

Sep 07, 2004 - Colorants based on renewable resources and food-grade colorants for application in thermoplastics - Technical Paper
A series of renewable resources based colorants and food-grade colorants have been evaluated in PP and PVC. Most of these colorants can be processed...

Aug 08, 2004 - Laser-based microscale patterning of biodegradable polymers for biomedical applications - Technical Paper
The current state of advancements in the field of biodegradable polymers and devices targeted at biomedical applications is reviewed. Fabrication...

Jul 05, 2004 - A new polystyrene-TiO2 nanocomposite film and its photocatalytic degradation - Technical Paper
A new kind of photodegradable polystyrene (PS)-TiO2 nanocomposite film was synthesized. The TiO2 nanoparticles were first modified by grafting PS on...

Jul 05, 2004 - Manufacture of biodegradable resin compositions and films therefrom - Patent
Moistureproof laminated films are manufactured by dissolving and blending biodegradable waxes and biodegradable resins in solvents and removal of the...

Jul 05, 2004 - Thermoformed PLA packaging. Compostable material - Technical Paper
Processability and properties of extruded PLA films are compared with common thermoplastics.

Jul 04, 2004 - Multilayered articles having biocompatibility and biostability characteristics - Patent
Multilayer articles, such as tubing and films, are discribed which have a soft layer of aliphatic polyurethane and at least one layer of hard...

Jun 21, 2004 - A biodegradable electrical bioconductor made of polypyrrole nanoparticle/poly(DL-lactide) composite: A preliminary in vitro biostability study - Technical Paper
The electrical conductivity of a novel polypyrrole (PPy)/poly(DL-lactide) (PDLLA) composite was studied in vitro and compared with that of PPy-coated...

Jun 21, 2004 - Modification of polymers by protein hydrolysate-a way to biodegradable materials - Technical Paper
The increasing use of plastics and their non-biodegradability have raised environmental awareness and hence the need for the development of...

Jun 21, 2004 - Preparation and degradation of PLA/chitosan composite materials - Technical Paper
Poly(lactic acid) (PLA) has several weaknesses, such as fast biodegradation and hydrophobicity. To solve these problems, a series of PLA/chitosan...

Jun 21, 2004 - Weathering resistance of waterbased UV-cured polyurethane-acrylate coatings - Technical Paper
The mechanical properties, flame retardancy and thermal degradation of LLDPE/wood-fiber composites were investigated. Maleated polyethylene was used...

Jun 20, 2004 - Biodegradable polymer material consisting of starch and dialdehyde polysaccharide - Patent
Starch is gelatinised more efficiently if a dialdehyde polysaccharide is added. Transparent films prepared from the improved thermoplastic starch...

Jun 20, 2004 - Hydrolytic Degradation of Pluronic F127/Poly(lactic acid) Block Copolymer Nanoparticles - Technical Paper
PLA was grafted to both ends of PEO-PPO-PEO (Pluronic F127) to produce novel amphiphilic block copolymer nanoparticles. The size of the nanoparticles...

Jun 20, 2004 - In situ polymerizing medical compositions - Patent
Isocyanate-capped biocompatible and optionally biodegradable polymers are prepared by in situ polymerization to form an adhesive, a coating, or a...

Jun 17, 2004 - Biodegradable thermoplastic resin compositions with good antistatic properties and their molded products - Patent
Films that are both biodegradable and static resistant are prepared by blending a biodegradable thermoplastic resin (e.g., PLA), methyl alkylbenzene...

Jun 01, 2004 - Natural polymers as matrices for electroactive materials - Conference
Renewable resources such as starch can be utilized as polymer matrixes for electroactive materials. Blends of thermoplastic starch and intrinsically...

May 31, 2004 - Modification of LLDPE using esterified styrene maleic anhydride copolymer: Study of its properties and environmental degradability - Technical Paper
Linear low-density polyethylene (LLDPE) was blended with decanol-esterified styrene maleic anhydride copolymer (MDESMA) with an aim to enhance the...

May 31, 2004 - Photochemical degradation of polymers containing urethane groups in the solid phase: influence of s block cations on the degradation - Technical Paper
The weatherability of films made from biologically compatible polyurethanes complexed with various metal ions was investigated.

May 31, 2004 - Thermal oxidation of self-degradable composite films based on low-density polyethylene - Technical Paper
The effect of the structure of composite extrusion films based on a blend of PE and poly(hydroxybutyrate) on the service characteristics and the...

May 30, 2004 - Preparation and properties of biodegradable hydrogels based on glutaraldehyde-crosslinked poly(2-hydroxyethyl aspartamide). - Technical Paper
Poly(N-2-hydroxyethyl-DL-aspartamide), PHEA, one of the poly(amino acid)s having pendent hydroxyl groups, is biodegradable and biocompatible, and has...

May 30, 2004 - Protein-based plastics and composites as smart green materials - Conference
Recently, many research programs on bioplastics based on proteins have grown as a result of the fresh interest in renewable and biodegradable raw...

May 28, 2004 - From biomass to oxygen barrier coatings - Conference
Xylan is one of the most abundant natural polymers in biomass. We have discovered that some xylan films have excellent oxygen barrier properties on...

May 25, 2004 - Effect of water on the oxygen barrier properties of poly(ethylene terephthalate) and polylactide films - Technical Paper
Polylactic acid (PLA) is a new biodegradable plastic resin being manufactured by Cargil-Dow. The capacity of the manufacturing plant is several...