Biologically-degradable polyester mixture

Details Biologically-degradable polyester mixture Biologically-degradable polyester mixture

2011-08-23

2011-08-23

Wu, David (Department: 1762)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S174000, C525S176000, C525S190000, C525S404000, C525S410000, C525S411000, C525S415000, C525S437000, C525S449000, C525S450000

Reexamination Certificate

active

08003731

ABSTRACT:
The invention relates to biodegradable polyester mixture, comprisingi) from 5 to 80% by weight, based on the total weight of components i to ii, of at least one polyester based on aliphatic and aromatic dicarboxylic acids and on aliphatic dihydroxy compounds, andii) from 20 to 95% by weight, based on the total weight of components i to ii, of at least one biodegradable homo- or copolyester selected from the group consisting of polylactide, polycaprolactone, polyhydroxyalkanoates, and polyesters composed of aliphatic dicarboxylic acids and of aliphatic diols, andiii) from 0.1 to 15% by weight, based on the total weight of components i to ii, a) of a copolymer containing epoxy groups and based on styrene, acrylate, and/or methacrylate, b) of a bisphenol A epoxide, or c) of a fatty acid amide or fatty acid ester or natural oil containing epoxy groups; andiv) from 0 to 15% by weight of additive; andv) from 0 to 50% by weight of inorganic or organic filler,and also to processes for their preparation and a method for their use.

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Galloway, J.A.; Jeon, H.K.; Bell, J.R.; Macosko, C.W.; Polymer, 2005, 46, p. 183-191.

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