Telechelic polymers and heterotelechelic polydiene block polymer

Details Telechelic polymers and heterotelechelic polydiene block polymer Telechelic polymers and heterotelechelic polydiene block polymer

1997-09-18

1999-09-07

Sellers, Robert E.

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

Synthetic resins

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

525 92F, 525 89, 525 98, C08L 5300, C08L 5302, C08L 3308, C08L 6702

Patent

active

059488638

ABSTRACT:
A pressure structural or sealant composition comprises (a) from 15 to 95% by weight of a telechelic polymer such as a glycidyl ether-functional telechelic polymer and from 5 to 85% by weight of a heterotelechelic polydiene block polymer wherein at least one of the functonalities is the same as the functionality of the telechelic polymer, such as a heterotelechelic polydiene block polymer with glycidyl ether and another functionality such as olefinic unsaturation or epoxidized olefin; and (b) a dual curing system wherein one curing agent cures the teolechelic polymer and the common functionality on the heterotelechelic polydiene block polymer such as an aliphatic polyamine, and the other curing agent cures the other functionality on the heterotelechelic polydiene block polymer but does not cure under conditions required to cure the telechelic polymer, such as a sulfur-based curing agent when the functionality is olefinic unsaturation or an amino resin when the functionality is epoxidized olefin.

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