Ternary mixtures of biodegradable polyesters and products...

Details Ternary mixtures of biodegradable polyesters and products... Ternary mixtures of biodegradable polyesters and products...

2006-06-27

2006-06-27

Robertson, Jeffrey B. (Department: 1712)

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

Synthetic resins

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

C525S410000, C525S411000, C525S415000, C525S437000, C525S447000, C525S450000, C525S451000

Reexamination Certificate

active

07067596

ABSTRACT:
The invention relates to a mixture of biodegradable polyesters which includes an aromatic-aliphatic polyester (A), an aliphatic polyester (B) and a polylactic acid polymer (C) in which the concentration of A varies, with respect to (A+B) in the range between 40 and 70% by weight, and the concentration of C with respect of (A+B+C) is of between 6 and 30% by weight.

REFERENCES:
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patent: 6018004 (2000-01-01), Warzelhan et al.
patent: 6787613 (2004-09-01), Bastioli et al.
patent: 2003/0187149 (2003-10-01), Schmidt et al.
patent: 0 950 678 (1999-10-01), None
patent: 0 990 676 (2000-04-01), None

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