Title:
高分子圧電フィルム
Document Type and Number:
Japanese Patent JP6300948
Kind Code:
B2
Abstract:
Provided is a polymeric piezoelectric film including a helical chiral polymer having a weight average molecular weight of from 50,000 to 1,000,000 and having optical activity, in which a crystallinity of the film measured by a DSC method is from 20% to 80%, a product of a standardized molecular orientation MORc measured by a microwave transmission-type molecular orientation meter based on a reference thickness of 50 μm and the crystallinity is from 40 to 700, and, when a refractive index in a slow axis direction in the film surface is nx, a refractive index in a fast axis direction in the film surface is ny, a refractive index in a thickness direction of the film is nz, and an Nz coefficient=(nx−nz)/(nx−ny), the Nz coefficient is from 1.108 to 1.140.
Inventors:
Katsutoshi Ozaki
Kazuhiro Tanimoto
Keisuke Sato
Masami Amano
Kazuhiro Tanimoto
Keisuke Sato
Masami Amano
Application Number:
JP2016556511A
Publication Date:
March 28, 2018
Filing Date:
October 20, 2015
Export Citation:
Assignee:
Mitsui Chemicals, Inc.
International Classes:
H01L41/193; B29C55/14; C08J5/18; H01L41/45
Domestic Patent References:
| JP2012232497A | ||||
| JP2009037110A |
Foreign References:
| WO2014168188A1 | ||||
| WO2012077663A1 | ||||
| WO2013137113A1 |
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Hiroshi Fukuda
Kato Kazunori
Hiroshi Fukuda