Blocked polyisocyanates prepared from partially trimerized cycli

Details Blocked polyisocyanates prepared from partially trimerized cycli Blocked polyisocyanates prepared from partially trimerized cycli

1992-02-25

1993-08-03

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...

525440, 2521822, 25218221, 528 45, 528 49, 4284228, C08G 1880

Patent

active

052329887

ABSTRACT:
The present invention relates to a blocked polyisocyanate which is based on the reaction product of a polyisocyanate with a reversible, monofunctional blocking agent for isocyanate groups, wherein the polyisocyanate is prepared by trimerizing 5 to 85% of the isocyanate groups of a cyclic organic diisocyanate having (cyclo)aliphatically bound isocyanate groups and contains

REFERENCES:
patent: 4246380 (1981-01-01), Gras et al.

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