发明名称 |
PIEZOELEKTRISCHE UND PYROELEKTRISCHE FOLIE UND VERFAHREN ZU IHRER HERSTELLUNG |
摘要 |
A piezoelectric and pyroelectric film made from a resin composition of polymer of vinylidene fluoride, which is characterized by an index of birefringence of larger than 3x10-3 and a ratio of d31/d32 of 0.3 to 3.0, and which may be prepared by further stretching a biaxially stretched film made from the above-mentioned resin composition at a temperature lower than the temperature of the biaxially stretching by more than 20 DEG C. before or at the same time of a treatment for orientation polarization of the film. |
申请公布号 |
DE2946859(A1) |
申请公布日期 |
1980.05.22 |
申请号 |
DE19792946859 |
申请日期 |
1979.11.20 |
申请人 |
KUREHA KAGAKU KOGYO K.K. |
发明人 |
SASAKI,TOHRU;TERASAKI,SYUUZI;SUSA,TOMOO |
分类号 |
H01L41/193;C08F14/00;C08F14/22;H01B3/44;H01L37/02;H01L41/45;(IPC1-7):H01L41/08;H01L41/22;H04R17/00 |
主分类号 |
H01L41/193 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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