Liquid crystal orienting agent
US5700860A · kind A · utility
11Cited by
11References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1996 |
| Grant date | Dec 23, 1997 |
| Priority date | — |
| Expiry date | Mar 27, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133723
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystal aligning agent, which contains (1) at least one polymer selected from a polyamic acid and an imidized polymer therefrom; (2) at least one first solvent selected from the group consisting of N-alkyl-2-pyrrolidones, lactones and 1,3-dialkyl-2-imidazolidinones; (3) at least one second solvent from (a) a phenyl ether solvent of the formula (I): ##STR1## and (b) an ester ether solvent of the formula (II) ##STR2## wherein R.sup.1 -R.sup.6, a, b and c are as defined herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.