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Non-yellowing para-tertiary-alkyl phenyl substituted triazine and pyrimidine ultraviolet light absorbers

  • US 6,239,276 B1
  • Filed: 06/18/1999
  • Issued: 05/29/2001
  • Est. Priority Date: 06/22/1998
  • Status: Expired due to Fees
First Claim
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1. A compound of formula (II) wherein:

  • wherein X is hydrogen or a blocking group;

    each R is independently a hydrocarbyl group of 1 to 21 carbon atoms;

    R1 is C1-C24 alkyl, C1-C24 branched alkyl, C2-C24 alkenyl, a cycloalkyl from 5-24 carbon atoms, an araalkyl from 7-24 carbon atoms, —

    COR9, —

    CO2R9, —

    CONHR9, —

    SO2R9, C1-C18 alkyl substituted with at least one hydroxy, C1-C18 alkoxy, C3-C18 alkenoxy, halogen, phenoxy, C1-C18 alkyl-substituted phenoxy, C1-C18 alkoxy-substituted phenoxy, halogen-substituted phenoxy, —

    COOH, —

    COOR9, —

    CONH2, —

    CONHR9, —

    CON(R9)(R10), —

    NH2, —

    NHR9, —

    N(R9)(R10), —

    NHCOR11, —

    N(R9)COR11, —

    NHCOOR11, —

    N(R9)COOR11, —

    CN, —

    OCOR11, —

    OC(O)NHR9, —

    OC(O)N(R9)(R10), glycidyloxy, glycidyl, cyclohexyl optionally substituted with hydroxyl or —

    OCOR11, and C2-C50 alkyl interrupted by at least one oxygen atom or carbonyl group and optionally substituted by one or more substituents selected from the group consisting of hydroxy or C1-C12 alkoxy;

    wherein R9 and R10 independently of one another are C1-C12 alkyl, C3-C12 alkoxyalkyl, C4-C16 dialkylaminoalkyl, C5-C12 cycloalkyl, or R9 and R10 taken together are C3-C9 alkylene, C3-C9 oxoalkylene or C3-C9 azaalkylene; and

    R11 is C1-C18 alkyl, C2-C18 alkenyl, or phenyl; and

    R3 and R4 are each hydrogen, hydrocarbyl group of 1 to 21 carbon atoms, halogen, hydroxyl, cyano, —

    O(hydrocarbyl), —

    O(functional hydrocarbyl), —

    N(hydrocarbyl)(hydrocarbyl) and mixtures thereof.

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