Title:
HIGH MOLECULAR PYROELECTRIC MATERIAL
Document Type and Number:
Japanese Patent JPH05267724
Kind Code:
A
Abstract:
PURPOSE:To obtain the title high molecular pyroelectric material having a high pyroelectric rate, excellent flexibility and high workability, at low cost by a method wherein a fluoric copolymer, containing a specific quantity of vinyl fluoride and trifluoro-ethylene, is polarized. CONSTITUTION:A fluoric copolymer, consisting of at least vinyl fluoride of 20 to 85mol% and trifluoroethylene of 15 to 80mol%, is polarized. The polarization is conducted at 200 deg.C or lower using an electrolytic method or a corona discharge method. Besides, the tertiary component such as vinylidene fluoride, tetrafluoro-ethylene, hexafluoroacetone, hexafluoropropylene and the like of 1 to 10mol% is contained in order to improve the physical property such as flexibility, transparency, solubility and the like. Accordingly, the title material can be used for an infrared ray sensor, the heat sensor of a fire alarm, various sensors of crime prevention and the like and a vidicon target.
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Inventors:
Kazuhiko Maeda
Shigeru Tasaka
Norihiro Inagaki
Shigeru Tasaka
Norihiro Inagaki
Application Number:
JP6586192A
Publication Date:
October 15, 1993
Filing Date:
March 24, 1992
Export Citation:
Assignee:
Central Glass Co., Ltd.
International Classes:
G01J1/02; G01J5/02; G01J5/34; H01L37/02; (IPC1-7): H01L37/02; G01J5/02
Attorney, Agent or Firm:
Eiichi Sakamoto
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