COPOLYMER, PIEZOELECTRIC MATERIAL, PIEZOELECTRIC FILM AND PIEZOELECTRIC ELEMENT
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United States of America Patent
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Sep 5, 2024
app pub date -
Mar 28, 2022
filing date -
Mar 29, 2021
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Abstract
A copolymer having a structural unit represented by Formula (1) (R1 and R2 represent 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 framework together with an oxazolidinone ring) and a structural unit represented by Formula (2):
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