Search Results - pla

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Catalysts and Process for Hydrogenolysis of Sugar Alcohols to Polyols

Description of TechnologyMetal-catalyzed cleavage of polyols (MCCP) is a novel technology for preparing low molecular weight polyols such as ethylene glycol and propylene glycol from high molecular weight polyols. Specifically, MCCP is a novel route for breaking apart these sugars (C6 and C5) using a metal-catalyzed, alkaline cleavage of sugar alcohols...
Published: 9/21/2011   |   Inventor(s): Shubham Chopade, Dennis Miller, James Jackson
Keywords(s): Bioplastic, Ethylene Glycol, Lactic Acid, PLA, Polyol, Propylene Glycol Category(s): Chemicals, Materials

Process for the Preparation of Lactic Acid and Glyceric Acid

Description of TechnologyMichigan State University’s invention is a process for making lactic and glyceric acid. Aqueous solutions of hexose and pentose sugars, typically glucose or fructose, are digested in the presence of strong anionic exchange resins that act as solid bases. Lactic and glyceric anions form but are bound to the ion exchange...
Published: 8/31/2011   |   Inventor(s): James Jackson, Dennis Miller, Simona Marincean
Keywords(s): Bioplastic, Ethylene Glycol, Glyceric Acid, Lactic Acid, PLA, Polyol, Propylene Glycol Category(s): Chemicals, Materials

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...

Microperforated Poly(lactic acid) Packaging Systems and the Method of Preparation Thereof

IntroductionAdvanced packaging systems are required to ensure the quality of fresh produce for consumers, who often purchase the products several days after harvest. Supply chain distances are expanding to increase gains in geographical market share for fresh produce growers, which require a longer shelf life to present the product to consumers in marketable...

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

Functionalization of Polylactides by Click Chemistry

IntroductionPolylactic acid (PLA) and polyglycotides are growing rapidly in popularity as an alternative to petroleum-derived plastics for biomedical applications. They are biodegradable, thermoplastic, and derived from renewable resources. However, there are functional characteristics associated with these polymers that limit their use for some biomedical...
Published: 10/7/2010   |   Inventor(s): Gregory Baker, Milton Smith, Iii, Xuwei Jiang, Erin Vogel
Keywords(s): Degradable Polymers, PDLA, PLA, PLLA, Polyglycolides, Polylactic Acid Category(s): Medical, Biotechnology, Chemicals

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 Polymeric Nanocomposite Compositions Particularly for Packaging

IntroductionHigh-barrier packaging is of interest to those packaging products in the food, pharmaceutical, medical, chemical and cosmetics industries. It is required to protect packaged products from the infiltration of unwanted gases, water vapor and flavors. High-barrier films are usually achieved by co-extrusion, lamination, coating and layering...