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Title:
ELECTRETIZED FILM AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/159765
Kind Code:
A1
Abstract:
Provided is an electretized film composed of a cyclic olefin-based polymer, wherein the electretized film is a non-porous film, and has a thickness direction piezoelectric constant d33 of 100 pC/N or greater as measured by applying a pressive force, under the conditions of a load of 0.5 N, a dynamic load of ±0.25N, a frequency of 110Hz, a temperature of 23˚C, and a humidity of 50%, in the thickness direction of the electretized film.

Inventors:
TAJITSU Yoshiro (KANSAI UNIVERSITY 3-35, Yamate-cho 3-chome, Suita-sh, Osaka 80, 〒5648680, JP)
NAKAMURA Yuzo (Inc. 580-32, Nagaura, Sodegaura-sh, Chiba 65, 〒2990265, JP)
MATAYOSHI Tomoya (Inc. 580-32, Nagaura, Sodegaura-sh, Chiba 65, 〒2990265, JP)
WATANABE Takayuki (Inc. 580-32, Nagaura, Sodegaura-sh, Chiba 65, 〒2990265, JP)
ERIGUCHI Michio (Inc. 580-32, Nagaura, Sodegaura-sh, Chiba 65, 〒2990265, JP)
Application Number:
JP2018/007810
Publication Date:
September 07, 2018
Filing Date:
March 01, 2018
Export Citation:
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Assignee:
MITSUI CHEMICALS TOHCELLO, INC. (7 Kandamitoshiro-cho, Chiyoda-ku Tokyo, 85, 〒1018485, JP)
THE SCHOOL CORPORATION KANSAI UNIVERSITY (3-35, Yamate-cho 3-chome Suita-sh, Osaka 80, 〒5648680, JP)
International Classes:
H01G7/02; C08J5/18; H01L41/193
Domestic Patent References:
WO2008047468A12008-04-24
Foreign References:
JP2014141651A2014-08-07
JP2011086924A2011-04-28
JP2002505034A2002-02-12
JP2012122041A2012-06-28
JP2011084735A2011-04-28
JP2005343148A2005-12-15
JP2017041001A2017-02-23
Attorney, Agent or Firm:
HAYAMI Shinji (KDX Gotanda Bldg. 9F, 9-2 Nishi-Gotanda 7-chome, Shinagawa-k, Tokyo 31, 〒1410031, JP)
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