Liquid crystalline polyester compositions and methods
US10759900B1 · kind B1 · utility
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9References
27Claims
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Key dates
| Filing date | May 6, 2020 |
| Grant date | Sep 1, 2020 |
| Priority date | — |
| Expiry date | May 6, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/38
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Liquid crystalline hydroquinone-3,4′-biphenyl dicarboxylate polyesters, and methods of making them. The polyesters may be melt processed at a temperature below the thermal decomposition temperature and the isotropic temperature, and may form a liquid crystalline glass phase. The polyesters may be formed by polycondensation of hydroquinone or a hydroquinone derivative with 3,4′-biphenyl dicarboxylic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.