Title:
POLYMER AND FERROELECTRIC MATERIAL INCLUDING SAME
Document Type and Number:
WIPO Patent Application WO/2023/127686
Kind Code:
A1
Abstract:
Provided is a novel copolymer having a structure derived from 1,2-difluoroethylene. Also provided is a ferroelectric material having piezoelectric properties and having excellent durability in high-temperature atmospheres. This copolymer is a polymer comprising a structural unit (A) derived from 1,2-difluoroethylene and a constituent unit (B) derived from vinylidene fluoride (VDF). This ferroelectric material is one formed from the polymer.
Inventors:
YANO RYOUICHI (JP)
ARIMOTO MASAHARU (JP)
FURUTANI TAKAHIRO (JP)
ARIMOTO MASAHARU (JP)
FURUTANI TAKAHIRO (JP)
Application Number:
PCT/JP2022/047372
Publication Date:
July 06, 2023
Filing Date:
December 22, 2022
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
C08F214/22; H01B3/44
Domestic Patent References:
| WO2019216239A1 | 2019-11-14 |
Foreign References:
| CN106633548A | 2017-05-10 | |||
| CN108102260A | 2018-06-01 | |||
| JP2008171935A | 2008-07-24 | |||
| US4778867A | 1988-10-18 |
Other References:
DURRELL W. S., WESTMORELAND G., MOSHONAS M. G.: "Poly(vinylene fluoride), synthesis and properties", JOURNAL OF POLYMER SCIENCE, PART A: GENERAL PAPERS, vol. 3, no. 8, 1 August 1965 (1965-08-01), pages 2975 - 2982, XP093075291, ISSN: 0449-2951, DOI: 10.1002/pol.1965.100030824
Attorney, Agent or Firm:
TASS MEISTER IP LAW FIRM (JP)
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