Title:
COPOLYMER, PIEZOELECTRIC MATERIAL, PIEZOELECTRIC FILM, AND PIEZOELECTRIC ELEMENT
Document Type and Number:
WIPO Patent Application WO/2024/018765
Kind Code:
A1
Abstract:
This copolymer includes: a structural unit represented by a formula (1) (R1 is any one selected from among a hydrogen atom, a methyl group, a dimethyl group, an ethyl group, an isopropyl group, an isobutyl group, a phenyl group, and a benzyl group, R2 is a hydrogen atom or a methyl group, or R1 and R2 form a benzooxazolidinone skeleton together with an oxazolidinone ring); and a structural unit represented by formula (2).
Inventors:
HOSHINO JUNICHI (JP)
Application Number:
PCT/JP2023/020672
Publication Date:
January 25, 2024
Filing Date:
June 02, 2023
Export Citation:
Assignee:
TDK CORP (JP)
International Classes:
C08F220/42; C08F226/06; H10N30/857
Domestic Patent References:
| WO2022210543A1 | 2022-10-06 | |||
| WO2023032614A1 | 2023-03-09 |
Foreign References:
| JPS49122479A | 1974-11-22 | |||
| US2818362A | 1957-12-31 | |||
| JPS55153906A | 1980-12-01 |
Attorney, Agent or Firm:
OIKAWA Shu et al. (JP)
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