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Poly(ureaurethane)s, articles and coatings prepared therefrom and methods of making the same

  • US 8,859,680 B2
  • Filed: 12/14/2006
  • Issued: 10/14/2014
  • Est. Priority Date: 09/01/2004
  • Status: Active Grant
First Claim
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1. A poly(ureaurethane) consisting of a reaction product of components consisting of:

  • (a) at least one isocyanate functional urea prepolymer consisting of a reaction product of;

    (1) at least one polyisocyanate selected from the group consisting of polyisocyanate trimers and branched polyisocyanates, the polyisocyanate having at least three isocyanate functional groups; and

    (2) water;

    (b) at least one branched polyol having 4 to 18 carbon atoms and at least 3 hydroxyl groups, wherein the branched polyol is selected from the group consisting of glycerol, tetramethylolmethane, trimethylolethane, trimethylolpropane, erythritol, pentaerythritol, dipentaerythritol, tripentaerythritol, sorbitan, alkoxylated derivatives thereof and mixtures thereof; and

    (c) at least one of acrylamides, polyvinyl alcohols, allyl alcohols, dihydroxy oxamides, dihydroxyamides, dihydroxy piperidines, and mixtures thereof.

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