Piezoelectric or pyroelectric material

Details Piezoelectric or pyroelectric material Piezoelectric or pyroelectric material

1988-11-16

1991-02-05

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

252 629, 264 22, 4284247, C08F 2042

Patent

active

049905848

ABSTRACT:
A vinylidene cyanide copolymer obtained by copolymerizing vinyldene cyanide represented by formula (I) ##STR1## and a vinyl compound represented by formula (II) ##STR2## wherein Z represents a hydrogen atom or a saturated hydrocarbon group having from 1 to 6 carbon atoms; when Z is a hydrogen atom, R represents C.sub.n H.sub.2n+1 COO--, wherein n represents 0 or an integer of from 4 to 9; and when Z is a saturated hydrocarbon group, R represents CH.sub.3 COO-- or a group having a benzene ring. The copolymer is excellent in transparency and provides an electret exhibiting excellent pyroelectricity or piezoelectricity upon polarization.

REFERENCES:
patent: 2615866 (1952-10-01), Gilbert et al.
patent: 2615867 (1952-10-01), Gilbert et al.
patent: 2615868 (1952-10-01), Miller
patent: 2615875 (1952-10-01), Gilbert et al.
patent: 2716105 (1955-08-01), Gilbert et al.
patent: 2716106 (1955-08-01), Gilbert et al.
patent: 2819253 (1958-01-01), Gateff et al.
patent: 3145194 (1964-08-01), Hechmaier et al.
patent: 3206420 (1965-09-01), Smart et al.
patent: 3426005 (1969-02-01), Serniuk et al.

Affiliated with

Also associated with

Rating

Piezoelectric or pyroelectric material does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Piezoelectric or pyroelectric material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Piezoelectric or pyroelectric material will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-10897