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RADIATION CURABLE POLYURETHANE-BASED BINDER DISPERSION

  • US 20180179325A1
  • Filed: 10/28/2015
  • Published: 06/28/2018
  • Est. Priority Date: 10/28/2015
  • Status: Active Grant
First Claim
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1. A radiation curable polyurethane-based binder dispersion, comprising:

  • water; and

    a radiation curable polyurethane dispersed in the water, the polyurethane having been formed from;

    a polyisocyanate;

    a polyol having a chain with two hydroxyl functional groups at one end of the chain and no hydroxyl groups at an opposed end of the chain, and having a number average molecular weight ranging from about 500 to about 5,000;

    an acrylate or methacrylate, the acrylate or methacrylate having at least one hydroxyl functional group and having an acrylate functional group or a methacrylate functional group;

    an alcohol or a diol or an amine having a number average molecular weight less than 600; and

    a sulfonate or sulfonic acid having one or two amino functional groups.

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