Polyamideimide copolymers and colorless and transparent polyamideimide film comprising the same
US10882958B2 · kind B2 · utility
2Cited by
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6Claims
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Key dates
| Filing date | Nov 29, 2017 |
| Grant date | Jan 5, 2021 |
| Priority date | — |
| Expiry date | Jan 10, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2379/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyamideimide copolymer which is an imide of a polyamic acid resulting from copolymerizing an aromatic diamine monomer, an aromatic dianhydride monomer, and an aromatic dicarbonyl monomer and a colorless and transparent polyamideimide film including the polyamideimide copolymer. The polyamideimide copolymer according to the present disclosure makes it possible to provide a polyamideimide film exhibiting excellent scratch resistance while being colorless and transparent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.