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POWDER COATING MATERIAL, METHOD FOR PRODUCING SUBSTRATE PROVIDED WITH COATING FILM, COATED ARTICLE AND FLUORINATED POLYMER

  • US 20190322873A1
  • Filed: 07/03/2019
  • Published: 10/24/2019
  • Est. Priority Date: 01/12/2017
  • Status: Active Grant
First Claim
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1. A powder coating material comprising a fluorinated polymer having units based on a fluoroolefin, units based on a monomer represented by the following formula (1) and units based on a monomer represented by the following formula (2),wherein the content of the units based on a monomer represented by the formula (2) is from 5 to 20 mol % to all units in the fluorinated polymer, andthe fluorinated polymer has a melt viscosity at 170°

  • C. of from 20 to 100 Pa·

    s;


    X—

    Z 



    formula (1);


    CHR21

    CR22(CH2)nCOOH 



    formula (2);

    wherein X is CH2

    CHC(O)O—

    , CH2

    C(CH3)C(O)O—

    , CH2

    CHOC(O)—

    , CH2

    CHCH2OC(O)—

    , CH2

    CHO—

    or CH2

    CHCH2O—

    ,Z is a C4-8 alkyl group represented by the formula —

    C(Z1)3, a C6-10 cycloalkyl group, a C6-10 cycloalkylalkyl group, a C6-10 aryl group or a C7-12 aralkyl group, provided that three Z1'"'"'s are each independently a C1-5 alkyl group, and the total number of carbon atoms of the three Z1'"'"'s is an integer of from 3 to 7,R21 and R22 are each independently a hydrogen atom or a C1-3 alkyl group, andn is an integer of from 0 to 12.

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