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:
Feb. 27, 2024
Filed:
Feb. 05, 2020
Daxin Materials Corporation, Taichung, TW;
Guan-Ping Chen, Taichung, TW;
Min-Tzu Kao, Taichung, TW;
Daxin Materials Corporation, Taichung, TW;
Abstract
A poly(imide-ester-amide) copolymer and an optical film are provided. The poly(imide-ester-amide) copolymer includes imide bonds, ester bonds, and amide bonds. A molar ratio of the imide bonds, the ester bonds, and the amide bonds is 40 to 80:10 to 30:5 to 30. The imide bonds are derived from an aromatic diamine monomer and a tetracarboxylic dianhydride monomer. The amide bonds are derived from an aromatic dicarboxylic acid dichloride monomer and an aromatic diamine monomer or is derived from the aromatic dicarboxylic acid dichloride monomer and an alkoxysilane containing an amine group or an isocyanate group.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile