The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 17, 1996
Filed:
Aug. 06, 1993
Bruce A Nerad, Oakdale, MN (US);
George F Vesley, Hudson, WI (US);
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
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.