Solventless method for preparation of carboxylic polymers

Details Solventless method for preparation of carboxylic polymers Solventless method for preparation of carboxylic polymers

2006-04-11

2006-04-11

Rabago, Roberto (Department: 1713)

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

Synthetic resins

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

C525S386000, C525S331900, C525S332500, C525S333100, C525S333200

Reexamination Certificate

active

07026410

ABSTRACT:
A solventless process for making a polymeric composition having at least two pendant carboxyl groups, which comprises reacting at least one molecule of water with at least one dicarboxylic acid anhydride group of at least one suitable polymer.

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