| 发明名称 | Piezoelectric polymer material and method for producing same | ||
| 摘要 | A piezoelectric polymer material comprising a helical chiral polymer having a weight average molecular weight of from 50,000 to 1,000,000 and optical activity, the piezoelectric polymer material having: crystallinity as obtained by a DSC method of from 40% to 80%; a transmission haze with respect to visible light of 50% or less; and a product of the crystallinity and a standardized molecular orientation MORc, which is measured with a microwave transmission-type molecular orientation meter at a reference thickness of 50 μm, of from 40 to 700. | ||
| 申请公布号 | US9184372(B2) | 申请公布日期 | 2015.11.10 |
| 申请号 | US201414451585 | 申请日期 | 2014.08.05 |
| 申请人 | MITSUI CHEMICALS, INC.;A SCHOOL CORPORATION KANSAI UNIVERSITY | 发明人 | Yoshida Mitsunobu;Fujii Shunsuke;Onishi Hitoshi;Tajitsu Yoshiro;Nishimoto Taizo;Tanimoto Kazuhiro;Goto Kenichi |
| 分类号 | H01L41/193;C08L67/04;H01L41/45;B29C55/00;B29C55/04;B29C71/00;B29C71/02;H01L41/18;C08L27/16;B29K67/00;B29K105/00;B29L7/00;B29L31/34 | 主分类号 | H01L41/193 |
| 代理机构 | Buchanan, Ingersoll & Roney PC | 代理人 | Buchanan, Ingersoll & Roney PC |
| 主权项 | 1. A piezoelectric polymer material comprising a helical chiral polymer having a weight average molecular weight of from 50,000 to 1,000,000 and optical activity, the piezoelectric polymer material having: crystallinity as obtained by a DSC method of from 40% to 80%; a transmission haze with respect to visible light of 50% or less; a product of the crystallinity and a standardized molecular orientation MORc, which is measured with a microwave transmission-type molecular orientation meter at a reference thickness of 50 μm, of from 40 to 700; less than 1% by mass of an inorganic filler based on the total mass of the piezoelectric polymer material; and a piezoelectric constant d14 measured by a resonance method at 25° C. of 9.5 pC/N or more. | ||
| 地址 | Tokyo JP | ||