Vinylidene cyanide alternating copolymers

Details Vinylidene cyanide alternating copolymers Vinylidene cyanide alternating copolymers

1990-03-09

1991-10-15

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

264221, 264 24, 307400, C08F 2234, B29C 3502, B06B 102, G11C 1302

Patent

active

050575880

ABSTRACT:
In one embodiment this invention provides vinylidene copolymers with alternating monomeric units as illustrated by the following structure: ##STR1## An invention vinylidene copolymer in the form of an electret film exhibits a high level of longitudinal piezoelectric effect, and has excellent processability and thermal stability properties.

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