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Reactive polyurethane dispersions

  • US 10,640,599 B2
  • Filed: 01/31/2017
  • Issued: 05/05/2020
  • Est. Priority Date: 01/31/2017
  • Status: Active Grant
First Claim
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1. A reactive polyurethane dispersion, comprising a polymer strand comprising a polymer backbone having two ends terminating at a first capping unit and a second capping unit, wherein the polymer backbone comprises polymerized monomers including:

  • a reactive diol, anda diisocyanate;

    wherein the first capping unit is either an acrylate-containing monoalcohol reacted with an isocyanate group of the diisocyanate or a methacrylate-containing monoalcohol reacted with an isocyanate group of the diisocyanate;

    wherein the second capping unit is either 3-(cyclohexylamino)-1-propanesulfonic acid reacted with an isocyanate group of the diisocyanate or 2-(cyclohexylamino)ethanesulfonic acid reacted with an isocyanate group of the diisocyanate; and

    wherein the reactive diol is selected from;

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