Title:
COPOLYMER, PIEZOELECTRIC MATERIAL, PIEZOELECTRIC FILM, AND PIEZOELECTRIC ELEMENT
Document Type and Number:
WIPO Patent Application WO/2022/210543
Kind Code:
A1
Abstract:
This copolymer has a structural unit represented by formula (1) (where R1 and R2 are each any one selected from the group consisting of 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, 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/JP2022/015022
Publication Date:
October 06, 2022
Filing Date:
March 28, 2022
Export Citation:
Assignee:
TDK CORP (JP)
International Classes:
C08F220/44; C08F226/06; H01L41/193
Foreign References:
| JPS49122479A | 1974-11-22 | |||
| US2818362A | 1957-12-31 | |||
| US3337652A | 1967-08-22 |
Attorney, Agent or Firm:
OIKAWA Shu et al. (JP)
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