C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 67/00 (2006.01) C08J 5/18 (2006.01) C08L 3/00 (2006.01) C08L 3/02 (2006.01) C08L 29/04 (2006.01)
Patent
CA 2254908
A blend of gelatinized starch and a biodegradable hydroxy-functional polyester is disclosed. The polyester is preferably formed from diglycidylesters of dicarboxyl acids like cyclohexane dicarboxylic acid, adipic acid or decane decarboxylic acid and a dihydroxy compound like bisphenol A or hydroguinone. The composition may also contain polyvinylalcohol. Water-resistant biodegradable films are made from this composition.
L'invention a pour objet un mélange d'amidon gélatinisé et de polyester hydroxy-fonctionnel biodégradable. Ce polyester est, de préférence, formé à partir de diglycidylesters d'acides dicarboxyliques tels que de l'acide cyclohexane dicarboxylique, de l'acide adipique ou de l'acide décane dicarboxylique, et un composé dihydroxy tel que du bisphénol A ou de l'hydroquinone. Ces compositions peuvent également contenir de l'alcool polyvinylique. Cette composition permet de fabriquer des films biodégradables résistants à l'eau.
Doane William M.
Lawton John W. Jr.
Xu Wayne
Biotechnology Research And Development Corporation
Cassan Maclean
The United States Of America As Represented By The Secretary Of
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