发明授权
US5061760A Vinylidene cyanide alternating copolymers exhibiting nonlinear optical
and piezoelectric properties
失效
显示非线性光学和压电性质的亚乙烯基氰化物交替共聚物
- 专利标题： Vinylidene cyanide alternating copolymers exhibiting nonlinear optical and piezoelectric properties
- 专利标题（中）： 显示非线性光学和压电性质的亚乙烯基氰化物交替共聚物
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申请号： US570064申请日： 1990-08-20
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公开(公告)号： US5061760A公开(公告)日： 1991-10-29
- 发明人: Anthony J. East , Anthony B. Conciatori
- 申请人： Anthony J. East , Anthony B. Conciatori
- 申请人地址： NJ Somerville
- 专利权人： Hoechst Celanese Corporation
- 当前专利权人： Hoechst Celanese Corporation
- 当前专利权人地址： NJ Somerville
- 主分类号： B06B1/06
- IPC分类号： B06B1/06 ; B29C55/00 ; C08F212/14 ; C08F222/34 ; H01G7/02 ; H01L41/193
摘要：
In one embodiment this invention provides vinylidene cyanide copolymers with alternating monomeric units as illustrated by the following structure: ##STR1## An invention vinylidene cyanide copolymer in the form of an electret film exhibits a high level of longitudinal piezoelectric effect, and has excellent processability properties. An electret film which has an external electric field-induced noncentrosymmetric dipolar molecular orientation exhibits second order nonlinear optical susceptibility under light propagation conditions.
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