- Patent Title: Poly(amide-imide) copolymer, composition for preparing poly(amide-imide) copolymer, article including poly(amide-imide) copolymer, and display device including the article
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Application No.: US16126270Application Date: 2018-09-10
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Publication No.: US10927218B2Publication Date: 2021-02-23
- Inventor: Boreum Jeong , Sang Soo Jee , Won Suk Chang , Kyeong-sik Ju , Chanjae Ahn , A Ra Jo , Sungwon Choi
- Applicant: SAMSUNG ELECTRONICS CO., LTD. , SAMSUNG SDI CO., LTD.
- Applicant Address: KR Suwon-si; KR Yongin-si
- Assignee: SAMSUNG ELECTRONICS CO., LTD.,SAMSUNG SDI CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.,SAMSUNG SDI CO., LTD.
- Current Assignee Address: KR Suwon-si; KR Yongin-si
- Agency: Cantor Colburn LLP
- Priority: KR10-2017-0115219 20170908,KR10-2018-0106898 20180907
- Main IPC: C08G73/14
- IPC: C08G73/14 ; G02B1/14 ; C08J5/18 ; C08G73/10
Abstract:
A poly(amide-imide) copolymer that is a reaction product of a substituted or unsubstituted aromatic diamine having a maximum absorption wavelength in a range from 500 nanometers (nm) to 650 nm in a visible light region, a diamine represented by Chemical Formula 1, a dicarbonyl compound represented by Chemical Formula 2, and a tetracarboxylic acid dianhydride represented by Chemical Formula 3: wherein, in Chemical Formulae 1 to 3, A, R3, R10, R12, R13, X, n7 and n8 are the same as defined in the specification.
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