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AQUEOUS COATING COMPOSITION

  • US 20190315997A1
  • Filed: 12/19/2016
  • Published: 10/17/2019
  • Est. Priority Date: 12/19/2016
  • Status: Active Grant
First Claim
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1. An aqueous coating composition comprising:

  • (A) an emulsion polymer comprising as polymerized units, based on the dry weight of the emulsion polymer,(i) from 1.9% to 3.5% by weight of phosphorous-containing monomers, wherein the phosphorous-containing monomers comprise,(a) a phosphorous-containing (meth)acrylate, and(b) a phosphorous-containing surfactant or a salt thereof, wherein the phosphorous-containing surfactant has the structure of formula (I),
    R—

    O—

    (CmH2mO)n

    PO3H2



    (I),wherein R is a C8-C22 branched or linear alkenyl group, m is an integer of from 2 to 4, and n is an integer of from 3 to 40; and

    wherein the weight ratio of phosphorous-containing (meth)acrylate to total phosphorous-containing monomers is in the range of 0.1 to 0.8; and

    (ii) from 0 to 1% by weight of an ethylenically unsaturated ionic monomer carrying at least one functional group selected from carboxyl, carboxylic anhydride, sulphonate, phosphonate, or combinations thereof;

    (B) a wax emulsion in an amount of from 1% to 10% by solids weight, based on the dry weight of the emulsion polymer; and

    (C) a pigment.

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