Search Results - biodegradable

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Fabrication and Characterization of Biodegradable PLA-Zeolite Composites (Includes TEC2007-0123)

IntroductionModified Atmosphere Packaging (MAP) enhances quality, extends the shelf life of perishable foods, and prevents loss revenues due to food spoilage. MAP is required because the balance and interaction of certain gases, such as carbon dioxide (CO2) and oxygen, with packaged foods contributes to either poor or high food quality. Advances in...

High Impact-High Stiffness Bacterial Bioplastic

Description of TechnologyThis technology is a new approach for producing biodegradable plastic that overcomes some prior limitation inherent in the use of Polyhydroxybutyrate (PHB). PHB is a desirable material because of its high crytallinity and water resistance. Crytallinity is when chains pack closely together in a regular way, allowing stronger...
Published: 4/15/2011   |   Inventor(s): Amar Mohanty, Yashodhan Parulekar
Keywords(s): Biodegradable, Biodegradable Plastics, Plastics Category(s): Chemicals, Materials

Environmentally Friendly Polylactide-Based Biocomposite Materials for Flooring

IntroductionThe growing environmental awareness, increasing societal concern and new environmental rules and regulations have triggered a paradigm shift in designing and engineering of eco-friendly green materials for flooring applications. Polylactic acid (PLA) polymers or polylactides are useful biodegradable polymers because of their origin from...
Published: 12/29/2010   |   Inventor(s): Lawrence Drzal, Amar Mohanty, Brian Rook, Manjusri Misra
Keywords(s): Biodegradable, Biodegradable Plastics, Plastics Category(s): Chemicals, Materials, Environment

Poly (1,4-benzodioxepin-3-alkyl-2,5-dione)s: Degradable Polymers with High Glass Transition Temperatures

IntroductionPolylactic acid (PLA) is growing rapidly in popularity as an alternative to petroleum-derived plastics. It is biodegradable, thermoplastic, and derived from renewable resources. However, polylactides must be crystalline tor them to be dimensionally stable above 50° C, which is a characteristic that limits its use for some applications....
Published: 10/8/2010   |   Inventor(s): Gregory Baker, Feng Jing, Milton Smith, Iii
Keywords(s): Biodegradable, Bioresorbable, PLA, Polylactic Acid Category(s): Chemicals, Materials

Process for the Preparation of Polymers of Dimeric Cyclic Esters

IntroductionPolylactic acid (PLA) is growing rapidly in popularity as an alternative to petroleum-derived plastics. It is biodegradable, thermoplastic, and derived from renewable resources. Presently, the preparation of crystalline materials requires enantiopure L-lactide, where lactic acid is produced by microbial fermentation, and the cyclic lactide...
Published: 9/27/2010   |   Inventor(s): Gregory Baker, Milton Smith, Iii
Keywords(s): Biodegradable, Bioresorbable, PDLA, PLA, PLLA, Polylactic Acid Category(s): Chemicals, Materials, Agriculture

A Composition and a Method for Preparing PLA with Improved Performance Characteristics

IntroductionPolylactic acid (PLA) is an increasingly popular alternative to petrochemical-based plastics. It is biodegradable, thermoplastic, and derived from renewable resources. However, there are several major drawbacks associated with PLA, including low elongation at break, poor impact strength and heat deflection temperature. Plasticizers are used...
Published: 9/27/2010   |   Inventor(s): Amar Mohanty, Rahul Bhardwaj
Keywords(s): Biodegradable, Biofibers, Bioplastics, Hyperbranched Polymers, PLA Category(s): Chemicals, Packaging

Biodegradable Plastics with High Glass Transition Temperatures Replace PET and Polystyrene

IntroductionBeginning around 1995, the inventor took an interest in finding ways to make polymers from natural resources since it was apparent that petroleum-based polymers would eventually increase markedly in cost as the world reserves of petroleum diminished. An associate suggested they research making polymers from hydroxyl acids. This led to the...

A Reactive Extrusion Process for Formation of Biodegradable, Bioabsorbable Co-Polymers of 1,4-Dioxan-2-one and a Cyclic Ester

IntroductionCurrent methods for producing these polymers typically result in low conversion of monomer to polymer product. Removal of the monomer is a time and cost intensive procedure.Description of TechnologyThis invention describes an approach to synthesize copolymers of 1,4-dioxan-2-one and a cyclic ester using continuous extrusion and an organometallic...