Piezoelectric copolymers of vinylidene fluoride and trifluoroeth

Details Piezoelectric copolymers of vinylidene fluoride and trifluoroeth Piezoelectric copolymers of vinylidene fluoride and trifluoroeth

1988-12-01

1990-08-07

Lipman, Bernard

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526 79, 526255, C08F21422

Patent

active

049469134

ABSTRACT:
A copolymer of vinylidene fluoride and trifluoroethylene having piezoelectric properties useful at elevated temperatures. The total molar content of trifluoroethylene is less than 30% characterized in that it has a heterogeneous structure with a distribution of accumulated molar composition comprised between two straight lines:

REFERENCES:
patent: 2640050 (1953-05-01), LeFevre et al.
patent: 3574178 (1971-04-01), Toyoda et al.
patent: 4027086 (1977-05-01), LoValvo et al.

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