The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 02, 2024
Filed:
Jul. 22, 2020
Zhen Ding Technology Co., Ltd., Taoyuan, TW;
Kuan-Wei Lee, Taoyuan, TW;
Szu-Hsiang Su, Taoyuan, TW;
Shou-Jui Hsiang, Tayuan, TW;
Pei-Jung Wu, Taoyuan, TW;
Wei-Hsin Huang, Taoyuan, TW;
Zhen Ding Technology Co., Ltd., Taoyuan, TW;
Abstract
A block copolymer of polyamide acid includes a first polyamide acid and a second polyamide acid alternately connected. The first polyamide acid is made by first dianhydride monomers and second diamine monomers. The second polyamide acid is made by second dianhydride monomers and first diamine monomers. Each first dianhydride monomer is or comprises a liquid crystal structure. Each second dianhydride monomer and each second diamine monomer respectively include a first flexible structure. Each first diamine monomer includes a liquid crystal structure. Each liquid crystal structure includes a cyclic group selected from a chemical structural formula of and intermediate groups selected from a chemical structural formula of Each flexible structure includes a group selected from a group consist of ether bond, ketone group, sulphone group, aliphatic hydrocarbon group, and any combination thereof.