Ferroelectric polymer single crystalline body and method of prod

Details Ferroelectric polymer single crystalline body and method of prod Ferroelectric polymer single crystalline body and method of prod

1995-07-13

1997-10-21

Yoon, Tae

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

528502, 528503, 526250, C08F 1422, C08F 1426, C08J 518

Patent

active

056797532

ABSTRACT:
A ferroelectric polymer single crystalline body consists of a copolymer of ethylene trifluoride and/or ethylene tetrafluoride and vinylidene fluoride in form of a film or a fiber and is used in a piezoelectric, pyroelectric or nonlinear optical element. The single crystalline body is produced by crystallizing a stretched film of the single crystalline body at hexagonal phase while maintaining the stretched film surface at a free state.

REFERENCES:
patent: 4173033 (1979-10-01), Sako et al.
patent: 4268653 (1981-05-01), Uchidoi et al.
patent: 4577132 (1986-03-01), Ohigashi et al.
patent: 4778867 (1988-10-01), Preis

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