Termotropic liquid-crystalline aromatic polyester from hydroquinone/substituted hydroquinone mixture
US4985533A · kind A · utility
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3References
18Claims
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Assignee
Inventors
Key dates
| Filing date | May 30, 1989 |
| Grant date | Jan 15, 1991 |
| Priority date | — |
| Expiry date | May 30, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/3809
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Thermotropic liquid-crystalline aromatic polyesters processable in the molten state, comprising units derived from at least one dicarboxylic aromatic acid and from mono- and di-substituted (1-phenyl-ethyl)-hydroquinones in admixture with hydroquinone, and/or hydroquinones substituted with halogen or alky, aryl or cycloalkyl groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.