Method for the reaction of thermoplastic polyurethanes with compounds having isocyanate groups

Method for the reaction of thermoplastic polyurethanes with compounds having isocyanate groups

  • CN 101,646,701 A
  • Filed: 03/19/2008
  • Published: 02/10/2010
  • Est. Priority Date: 03/27/2007
  • Status: Active Application
First Claim
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1. method that makes thermoplastic polyurethane and the compound reaction that contains isocyanate groups, carry out under the wherein said existence that is reflected at a kind of prepolymer, described prepolymer for (a) isocyanic ester with (b) to isocyanic ester have activity and molecular weight ranges from 500g/mol to 10000g/mol, the preferably reaction product of the compound from 2000g/mol to 8000g/mol, and described prepolymer is lower than-35 ℃

  • according to DIN EN ISO 11357-1 by the glass transition temperature Tg that DSC records.

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