Polyisobutylene/phenol polymers treated with diisocyanates and p

Details Polyisobutylene/phenol polymers treated with diisocyanates and p Polyisobutylene/phenol polymers treated with diisocyanates and p

1980-10-17

1982-03-23

Cockeram, H. S.

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

Synthetic resins

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

525131, 528 55, 528 58, 528 75, C08F28300, C08G 1822, C08G 1824, C08G 1863

Patent

active

043213430

ABSTRACT:
Disclosed herein are block copolymers prepared by polymerizing isobutylene in the presence of an alkyl-substituted phenol as chain transfer agent followed by reaction with a diisocyanate and coupling to a polyoxyalkylene polyol.

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