Liquid crystalline polyesters and methods for their production
US5340911A · kind A · utility
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9Claims
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Key dates
| Filing date | Oct 20, 1993 |
| Grant date | Aug 23, 1994 |
| Priority date | — |
| Expiry date | Oct 20, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/3809
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for producing a liquid crystalline polyester, which comprises reacting compounds of the following formulas: ##STR1## and a dicarboxylic acid of the following formula ##STR2## wherein R.sup.1 is a bivalent aromatic hydrocarbon group having from 6 to 18 C atoms as starting material, for polycondensation in a molten state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.