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POLYMERIZABLE COMPOSITIONS COMPRISING NANOPARTICLES

  • US 20080030829A1
  • Filed: 10/12/2007
  • Published: 02/07/2008
  • Est. Priority Date: 09/12/2003
  • Status: Active Grant
First Claim
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1. A brightness enhancing film having a microstructured optical layer comprising the reaction product of a polymerizable resin composition comprising:

  • a) one or more first monomers selected from the group consisting of;

    i) a monomer comprising a major portion having the structure wherein R1 is independently hydrogen or methyl, R2 is hydrogen, Q is 0, and Z is independently —

    C(CH3)2

    , —

    CH2

    , or —

    C(O)—

    ;

    ii) a monomer comprising a major portion having the structure wherein R1 is independently hydrogen or methyl, R2 is hydrogen, Q is 0, Z is independently —

    C(CH3)2

    , —

    CH2

    , or —

    C(O)—

    , and L is a linking group independently selected from linear or branched C2-C8 alkyl groups wherein the carbon chain is substituted with one or more oxygen groups one or more hydroxyl groups, or a combination thereof;

    and mixtures of i and ii;

    b) at least about 10 wt-% of surface modified colloidal inorganic nanoparticles;

    c) at least 5 wt-% to 50 wt-% of a reactive diluent; and

    d) optionally a crosslinking agent.

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