Process for preparing urethane modified resins and resultant com

Details Process for preparing urethane modified resins and resultant com Process for preparing urethane modified resins and resultant com

1985-12-12

1987-05-19

Welsh, Maurice J.

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

Synthetic resins

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

260102, 525424, 525440, 527301, 527600, C08L 9300

Patent

active

046669841

ABSTRACT:
A urethane modified resin is prepared by reacting a resin containing carboxyl groups with an amine-alcohol to form a resin-amine salt, followed by reacting the resin-amine salt with a polyisocyanate.

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