Polymerizable liquid crystal compound, polymerizable composition, polymer material, and film
US9493705B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2014 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Mar 7, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2001/0264
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A polymerizable liquid-crystal compound of formula (I) effective for preventing crystal deposition after coating with polymerizable liquid crystal (II) or a polymerizable liquid crystal similar thereto. P represents a polymerizable functional group; Sp represents a spacer or a single bond; Z1 and Z2 each represent —CO—O—; R0 represents a linear alkyl group having 1-15 carbon atoms; R2, R3 and R4 each independently represent an alkyl group having 1-4 carbon atoms, an alkoxy group having 1-4 carbon atoms, an alkoxycarbonyl group having 2-5 carbon atoms, an acyloxy group having 2-5 carbon atoms, an acyl group having 2-4 carbon atoms, an amide group having 2-5 carbon atoms, a cyano group, an amino group, a hydroxyl group, or a halogen atom; r1, r2 and r3 indicate an integer from 0-4; when r1, r2 and r3 each are 2 or more, then R2, R3 and R4 each may be the same or different; however, when R0 is a methyl group, then r2 is not 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.