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POLYVINYL ULTRAVIOLET LIGHT ABSORBERS FOR PERSONAL CARE

  • US 20090185988A1
  • Filed: 01/17/2008
  • Published: 07/23/2009
  • Est. Priority Date: 01/17/2008
  • Status: Active Grant
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Assignment
First Claim
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1. A UV absorbing polymer, comprising at least one residue of a chromophoric monomer structure depicted by Ia or Ib below or a combination thereof:

  • wherein X is hydrogen or one or two groups selected from the group consisting of hydroxy, C1-C6-alkyl, halogen, and —

    OR′

    ;

    X1 and X2 are independently selected from the group consisting of cyano, C1-C6-alkoxycarbonyl, C1-C6-alkylsulfonyl, arylsulfonyl, carbamoyl, C1-C6-alkanoyl, aroyl, aryl, heteroaryl, and —

    COY;

    R and R′

    are independently selected from the group consisting of hydrogen, C1-C12-alkyl, substituted C1-C12-alkyl, aryl, C3-C8-cycloalkyl, C3-C8-alkenyl, —

    (CHR1CHR2O—

    )n—

    R3, and -L-Q;

    wherein R1 and R2 are independently selected from the group consisting of hydrogen and C1-C6-alkyl;

    R3 is selected from the group consisting of hydrogen, C1-C6-alkyl, C1-C6-alkanoyl, aroyl, and aryl;

    L is a divalent organic radical selected from the group consisting of C1-C6-alkylene-O—

    , C1-C6-alkylene-N(R1)—

    , arylene-C1-C6-alkylene-O—

    , arylene-C1-C6-alkylene-(NR1)—

    , arylene-(OCHR1CHR2O)n—

    , C1-C6-alkylene-Y1—

    (CHR1CHR2O—

    )n—

    , and —

    (CHR1CHR2O—

    )n—

    ;

    n is 1-1000; and

    Y1 is selected from the group consisting of —

    O—

    , —

    S—

    , —

    SO2—

    , —

    N(SO2R4)—

    , and —

    N(COR4)—

    ;

    Y is independently selected from the group consisting of —

    O-L-Q, —

    N(R4)-L-Q, —

    N-(L-Q)2, and —

    R4;

    wherein R4 is selected from the group consisting of C1-C12-alkyl, substituted C1-C12-alkyl, C3-C8-cycloalkyl, C3-C8-alkenyl, and aryl; and

    Q is a group that comprises an ethylenically unsaturated polymerizable group;

    with the proviso that the monomer molecules each comprise at least one Q group.

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