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Coating composition

  • US 20030073778A1
  • Filed: 10/01/2002
  • Published: 04/17/2003
  • Est. Priority Date: 10/01/2001
  • Status: Active Grant
First Claim
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1. A coating composition comprising a bimodal aqueous emulsion copolymer, wherein said bimodal copolymer comprises as polymerized units from 0.1% to 10% by weight, based on the dry weight of said copolymer, of a compound selected from the group consisting of at least one strong acid monomer, and salts thereof;

  • wherein said copolymer comprises small mode particles having a diameter of from 50 to 150 nm;

    wherein said copolymer comprises large mode particles having a diameter of less than 400 nm, and said large mode particles are larger in diameter than said small mode particles; and

    wherein the ratio of said small mode particles to said large mode particles is from 10;

    90 to 90;

    10 by weight.

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