Isocyanate prepolymer and preparation method thereof

Isocyanate prepolymer and preparation method thereof

  • CN 106,317,373 A
  • Filed: 07/10/2015
  • Published: 01/11/2017
  • Est. Priority Date: 07/10/2015
  • Status: Active Application
First Claim
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1. an Isocyanate prepolymers body, comprises following raw material, in terms of the gross weight of performed polymer:

  • (1) isocyanates, consumption is 50-65wt%, preferably 54-60wt%,(2) combination polyol, consumption is 11-24wt%, preferably 15-21wt%,(3) solvent, consumption is 20-30wt%, preferably 24-26wt%,(4) antioxidant, consumption is 0.1-0.3wt%, preferably 0.1-0.2wt%,(5) catalyst, consumption is 0.005-0.03wt%, preferably 0.006-0.02wt%,(6) terminator, consumption is 0.005-0.05wt%;

    Preferably 0.006-0.03wt%,Wherein the thing mass ratio of NCO Yu OH is 1.9-2.5, preferably 2.1-2.4.

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