Poly(amide-imide) copolymer, article including poly(amide-imide) copolymer, and display device including the same
US10619045B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Apr 20, 2018 |
| Grant date | Apr 14, 2020 |
| Priority date | — |
| Expiry date | May 5, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2203/20
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A poly(amide-imide) copolymer including a reaction product of at least one tetracarboxylic acid dianhydride, at least one diamine, and at least one dicarboxylic acid derivative, wherein 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:
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