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Curable Polyisocyanate Composition Comprising an Epoxy

  • US 20150065611A1
  • Filed: 11/07/2012
  • Published: 03/05/2015
  • Est. Priority Date: 11/22/2011
  • Status: Active Grant
First Claim
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1. A curable composition obtained by combining and mixinga polyisocyanate composition, comprising a polyisocyanate, a lithium halide and a urea compound that is the reaction product of a second polyisocyanate and an amine, and wherein the urea compound has an average molecular weight of 500-15000 and optionally comprising biuret groups wherein the number of moles of lithium halide per isocyanate equivalent ranges of from 0.0001-0.04 and the number of urea 1 biuret equivalents per isocyanate equivalent ranges of from 0.0001-0.4 and the number of epoxy equivalents per isocyanate equivalent ranges of from 0.003-1, and wherein the polyisocyanate and the second polyisocyanate may be the same or different, andan epoxy resin, composition comprising an epoxy resin, a compound which comprises a carboxamide group having the structure —

  • CO—

    NH2 and optionally a solvent which has no isocyanate-reactive groups, and, optionally, wherein the number of carboxamide equivalents per epoxy equivalent is 0.0005-1.

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