US 5,585,035 A · Light modulating device having a silicon-containing matrix

Abstract

In one aspect, an optically responsive film in which liquid crystal is dispersed in a matrix that includes siloxane linkages. The film has a transmissivity at -20.degree. C. that is substantially the same as the transmissivity at 20.degree. C. and a V.sub.90 at -20.degree. C. that is less than twice the value at 20.degree. C. In another aspect, an optically responsive film in which liquid crystal is dispersed in a matrix that includes the polymerization product of at least one mercapto-functional siloxane. In another aspect, an optically responsive film in which liquid crystal is dispersed in a matrix that includes the polymerization product of at least one multi-functional ene and at least one multi-functional silicon hydride. In another aspect, an optically responsive film in which liquid crystal is dispersed in a matrix that includes the reaction product of at least one multi-functional vinyl silane and at least one multi-functional thiol.

Claims26

Dependent claims

An optically responsive film comprising liquid crystal dispersed in a polymer matrix comprising siloxane linkages,

said film comprising the reaction product of at least one multi-functional siloxane-containing reactant in which the functional groups of said reactant are at least three carbon atoms away from the silicon atom,
said film having a transmissivity at -20.degree. C. that is substantially the same as the transmissivity of said film at 20.degree. C. and a V.sub.90 at -20.degree. C. that is less than twice the value at 20.degree. C.

Dependencies are inferred from the claim text.

Light modulating device having a silicon-containing matrix

Life of this patent

Light modulating device having a silicon-containing matrix

Life of this patent

Abstract

Claims26