Polyamideimide elastomer and production thereof

Details Polyamideimide elastomer and production thereof Polyamideimide elastomer and production thereof

1988-05-11

1989-03-28

Welsh, Maurice J.

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...

C08G 1828

Patent

active

048165441

ABSTRACT:
Disclosed are novel polyamideimide elastomers obtained by reaction of carboxyl-telechelic polymer(s) having a molecular weight of 500 to 10,000 aromatic diisocyanate(s), trimellitic acid anhydride and a dicarboxylic acid having 4 to 18 carbon atoms in a particular proportion. The polyamideimide elastomers have excellent heat resistance, oil resistance and low temperature characteristics and have mechanical properties which are comparable to those of polyurethane elastomers. Further, the said elastomers have a particular characteristic that they may retain a rubber-like property even at a high temperature.

REFERENCES:
patent: 4496715 (1985-01-01), Sattler

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