POLY(AMIDE-IMIDE) COPOLYMER, ARTICLE INCLUDING POLY(AMIDE-IMIDE) COPOLYMER, AND DISPLAY DEVICE

• Main Authors: AHN CHANJAE, JO A RA, CHAE JUNGHA, JEE SANG-SOO, JANG WON-SEOK, CHOI SUNGWON
• Format: Patent
• Language: English; Japanese
• Published: 15.11.2018
• Subjects: ADVERTISING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; CRYPTOGRAPHY; DISPLAY; DISPLAYING; EDUCATION; GENERAL PROCESSES OF COMPOUNDING; LABELS OR NAME-PLATES; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PHYSICS; SEALS; SIGNS; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

PROBLEM TO BE SOLVED: To provide a poly(amide-imide) copolymer having improved mechanical properties while maintaining excellent optical properties.SOLUTION: A poly(amide-imide) copolymer includes a reaction product of at least one tetracarboxylic acid dianhydride, at least one diamine, and at least one dicarboxylic acid derivative, where the at least one tetracarboxylic acid dianhydride includes a tetracarboxylic acid dianhydride represented by chemical formula 1, the at least one diamine includes a diamine represented by chemical formula 2, and the at least one dicarboxylic acid derivative includes a dicarboxylic acid derivative represented by chemical formula 3.SELECTED DRAWING: Figure 1 【課題】優れた光学特性を維持しながら、機械的特性がより改善されたポリ（アミド−イミド）コポリマーを提供する【解決手段】少なくとも１つのテトラカルボン酸二無水物、少なくとも１つのジアミン、および少なくとも１つのジカルボン酸誘導体の反応生成物を含み、前記少なくとも１つのテトラカルボン酸二無水物は、化学式１で表されるテトラカルボン酸二無水物を含み、前記少なくとも１つのジアミンは、化学式２で表されるジアミンを含み、前記少なくとも１つのジカルボン酸誘導体は、化学式３で表されるジカルボン酸誘導体を含むポリ（アミド−イミド）コポリマー。【選択図】図１