Polyhydroxyalkanoate copolymer/starch compositions for...

Details Polyhydroxyalkanoate copolymer/starch compositions for... Polyhydroxyalkanoate copolymer/starch compositions for...

C - Chemistry, Metallurgy

08

L

C08L 67/04 (2006.01) B32B 27/08 (2006.01) B32B 27/36 (2006.01) C08J 5/18 (2006.01) C08L 3/02 (2006.01)

Patent

CA 2463806

Films comprising a blend of polyhydroxyalkanoate copolymer and destructured starch are disclosed. Laminates having a first layer comprising a PHA copolymer and a second layer comprising a PHA copolymer/starch blend or thermoplastic starch are also disclosed. Disposable articles comprising the environmentally degradable films or laminates are also disclosed.

L'invention concerne des films comprenant un mélange de copolymère de polyhydroxyalcanoate et d'amidon destructuré. Elle concerne également des stratifiés qui présentent une première couche comprenant un copolymère de PHA, et une seconde couche comprenant un mélange de copolymère de PHA et d'amidon ou un amidon thermoplastique. L'invention concerne en outre des articles jetables comprenant les films ou stratifiés biodégradables de l'invention.

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