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 (JP)
NAKAMURA YUZO (JP)
MATAYOSHI TOMOYA (JP)
WATANABE TAKAYUKI (JP)
ERIGUCHI MICHIO (JP)
NAKAMURA YUZO (JP)
MATAYOSHI TOMOYA (JP)
WATANABE TAKAYUKI (JP)
ERIGUCHI MICHIO (JP)
Application Number:
PCT/JP2018/007810
Publication Date:
September 07, 2018
Filing Date:
March 01, 2018
Export Citation:
Assignee:
MITSUI CHEMICALS TOHCELLO INC (JP)
THE SCHOOL CORPORATION KANSAI UNIV (JP)
THE SCHOOL CORPORATION KANSAI UNIV (JP)
International Classes:
H01G7/02; C08J5/18; H01L41/193
Domestic Patent References:
| WO2008047468A1 | 2008-04-24 |
Foreign References:
| JP2014141651A | 2014-08-07 | |||
| JP2011086924A | 2011-04-28 | |||
| JP2002505034A | 2002-02-12 | |||
| JP2012122041A | 2012-06-28 | |||
| JP2011084735A | 2011-04-28 | |||
| JP2005343148A | 2005-12-15 | |||
| JP2017041001A | 2017-02-23 |
Other References:
See also references of EP 3591678A4
Attorney, Agent or Firm:
HAYAMI Shinji (JP)
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