Polyester resin exhibiting optical anisotropy in molten state and composition thereof
US4937310A · kind A · utility
9Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1989 |
| Grant date | Jun 26, 1990 |
| Priority date | — |
| Expiry date | Apr 10, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/605
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyester resin comprises 35 to 90 mole percent of the unit (I), 0.5 to 20 mole percent of the unit (II), 0.5 to 45 mole percent of the unit (III) and 0.5 to 45 mole percent of the unit (IV), exhibiting the anisotropy in its molten state. It may further comprise 0.5 to 45 mole percent of the unit (V). The composition is here presented, comprising the polyester resin as defined above and up to 95 percent by weight of an inorganic filler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.