Liquid crystal-aligning agent
US5698135A · kind A · utility
4Cited by
8References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1995 |
| Grant date | Dec 16, 1997 |
| Priority date | — |
| Expiry date | Dec 7, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133723
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A liquid crystal-aligning agent comprising at least one of a polyamic acid obtained by reacting (A) a tetracarboxylic acid dianhydride consisting of 70 to 98 mole % of a dianhydride of a tetracarboxylic acid such as ##STR1## or the like, and 2 to 30 mole % of a dianhydride of a cyclobutanetetracarboxylic acid, and (B) a diamine compound, and a polymer obtained by imidizing the polyamic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.