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Polymerizable compositions comprising nanoparticles

  • US 20050200278A1
  • Filed: 03/11/2005
  • Published: 09/15/2005
  • Est. Priority Date: 09/12/2003
  • Status: Active Grant
First Claim
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1. A brightness enhancing film having a polymerized structure comprising the reaction product of a) at least about 15 wt-% of one or more first monomers selected from the group consisting of:

  • i) a monomer comprising a major portion having the structure embedded imagewherein R1 is independently hydrogen or methyl, R2 is independently hydrogen or bromine, Q is independently O or S, and Z is independently —

    C(CH3)2

    , —

    CH2

    , —

    C(O)—

    , —

    S—

    , —

    S(O)—

    , or —

    S(O)2

    ;

    ii) a monomer comprising a major portion having the structure embedded imagewherein R1 is independently hydrogen or methyl, R2 is independently hydrogen or bromine, Q is independently O or S, Z is independently —

    C(CH3)2

    , —

    CH2

    , —

    C(O)—

    , —

    S—

    , —

    S(O)—

    , or —

    S(O)2, and L is a linking group independently selected from linear or branched C2-C12 alkyl groups wherein the carbon chain is optionally substituted with one or more oxygen group and/or the carbon atoms are optionally substituted with one or more hydroxyl groups;

    and mixtures of i and ii;

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

    c) optionally a crosslinking agent.

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