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Light modulating device having a matrix prepared from acid reactants

  • US 5,593,615 A
  • Filed: 06/07/1995
  • Issued: 01/14/1997
  • Est. Priority Date: 04/29/1994
  • Status: Expired due to Fees
First Claim
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1. An optically responsive film comprising liquid crystal dispersed in a polymer matrix comprising the reaction product of (1) one or more polymerizable matrix reactants other than an acid reactant and (2) at least one acid reactant copolymerizable with said one or more matrix reactants in an amount ranging from about 2 to about 15 weight percent,said amount being sufficient to enhance the T-peel strength of said film by a factor of at least 2 relative to the same film prepared in the absence of said acid reactant,said acid reactant comprising an unsaturated carboxylic acid, a mono-ester of a dicarboxylic acid, an amine-functional carboxylic acid, a hydroxy-functional carboxylic acid, a mercapto-functional carboxylic acid, or a sulfonic acid.

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