Compositions of matter

Details Compositions of matter Compositions of matter

1989-08-30

1991-11-12

Kight,III, John

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

528 59, 528 73, 528 75, 524251, 524264, C08G 1814

Patent

active

050649256

ABSTRACT:
Isocyanate-reactive polymers having terminal enamino-functional groups are obtained by reacting ammonia or primary or secondary amines with polymers having terminal .beta.-ketoester groups which are themselves obtained by reaction of polyols with .beta.-ketoesters such as ethyl acetoacetate.

REFERENCES:
patent: 4808649 (1989-02-01), Gay et al.
patent: 4935460 (1990-06-01), Cassidy et al.

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