Polyimide resin, thin film and method for manufacturing thereof
US10538626B2 · kind B2 · utility
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Key dates
| Filing date | Jul 10, 2017 |
| Grant date | Jan 21, 2020 |
| Priority date | — |
| Expiry date | Jul 10, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2379/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A transparent and colorless polyimide resin is provided. The polyimide resin is derived from at least two dianhydride monomers and at least two diamine monomers. At least one monomer in the dianhydride and diamine monomers includes structure of formula (1). The monomer with structure of formula (1) has an amount of moles accounting for 10-50% of total moles of the dianhydride or diamine monomers.In formula (1), X is SO2,C(CH3)2 or C(CF3)2, Y is oxygen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.