| Patent Number |
Title Of Patent |
Date Issued |
| 5783115 |
Index matching compositions with improved DNG/DT |
July 21, 1998 |
| The invention relates to optically transmissive, silica-containing compositions which exhibit a small change of refractive index with respect to temperature changes (dn.sub.g /dT). The compositions are derived from silica sols dispersed in liquid organic polymers. The invention relates t |
| 5702637 |
Liquid crystal compounds having a chiral fluorinated terminal portion |
December 30, 1997 |
| Fluorine-containing, chiral liquid crystal compounds comprise (a) a chiral fluorochemical terminal portion containing at least one methylene group and optionally containing at least one catenary ether oxygen atom; (b) a saturated, chiral or achiral, hydrocarbon terminal portion; and (c) |
| 5658491 |
Process for controlling cone tilt angle in mixtures of smectic liquid crystal compounds |
August 19, 1997 |
| A process for controlling the cone tilt angle of a tilted smectic liquid crystal composition comprises the step of combining (a) at least one liquid crystal composition comprising at least one smectic or latent smectic liquid crystal compound comprising (i) an aliphatic fluorocarbon |
| 5482650 |
Liquid crystal compounds having perfluoroether terminal portions |
January 9, 1996 |
| Fluorine-containing liquid crystal compounds comprise a fluorocarbon terminal portion having at least one catenary ether oxygen and a hydrocarbon terminal portion, the terminal portions being connected by a central core. The compounds have smectic or latent smectic mesophases. |
| 5474705 |
Chiral liquid crystal compounds having a perfluoroether terminal portion |
December 12, 1995 |
| Fluorine-containing, chiral liquid crystal compounds comprise (a) an aliphatic fluorocarbon terminal portion containing at least two catenary ether oxygen atoms; (b) a chiral, aliphatic hydrocarbon terminal portion; and (c) a central core connecting the terminal portions. The compounds |
| 5437812 |
Liquid crystal compounds having perfluoroether terminal portions |
August 1, 1995 |
| Fluorine-containing liquid crystal compounds are provided. The compounds comprise a fluorocarbon terminal portion having at least one catenary ether oxygen and a hydrocarbon terminal portion, the terminal portion being connected by a central core, the compounds having smectic mesophases |
| 5417883 |
Process for controlling layer spacing in mixtures of smectic liquid crystal compounds |
May 23, 1995 |
| A process for controlling layer spacing in mixtures of smectic liquid crystal compounds comprises the step of combining a liquid crystal composition having a net negative thermal layer expansion in at least one tilted (or latent tilted) smectic mesophase and a liquid crystal composit |
| 5399291 |
Liquid crystal compounds having a fluoroether terminal portion |
March 21, 1995 |
| Fluorine-containing, chiral and achiral liquid crystal compounds comprise (a) an aliphatic fluorocarbon terminal portion comprising a perfluorinated or partially-fluorinated alkylene group and a terminal hydrocarbon alkyl group, the groups optionally containing at least one catenary ethe |
| 5377033 |
Ferroelectric liquid crystal device with an organosilesquioxane alignment layer and a polyamide |
December 27, 1994 |
| A bistable ferroelectric liquid crystal display device is provided. The device comprises a first substrate, a second substrate opposed to said first substrate, said substrates disposed to provide a non-helicoidal alignment of the ferroelectric liquid crystal material and electrodes on |
| 5307438 |
Index matching compositions with improved DNG/DT |
April 26, 1994 |
| The invention relates to optically transmissive, silica-containing compositions which exhibit a small change of refractive index with respect to temperature changes (dn.sub.g /dT). The compositions are derived from silica sols dispersed in liquid organic polymers. The invention relates t |
