Methods of synthesis of polymers and copolymers from natural...

Details Methods of synthesis of polymers and copolymers from natural... Methods of synthesis of polymers and copolymers from natural...

2007-08-14

2007-08-14

Truong, Duc (Department: 1711)

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

Synthetic resins

From carboxylic acid or derivative thereof

C528S425000, C528S486000, C528S503000, C525S419000

Reexamination Certificate

active

11059678

ABSTRACT:
Described are polymers and copolymers containing sorbitol, citric acid, starch, aspartic acid, succinic anhydride, adipic acid mixtures thereof, methods of their synthesis and their uses.

REFERENCES:
patent: 6495658 (2002-12-01), Sikes et al.
patent: 6686440 (2004-02-01), Swift
patent: 6686441 (2004-02-01), Swift et al.
patent: 6887971 (2005-05-01), Swift et al.
patent: 6903181 (2005-06-01), Swift et al.

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