For the preparation of the method for the polyurethane foam based on special alkoxysilane-functional polymers

For the preparation of the method for the polyurethane foam based on special alkoxysilane-functional polymers

  • CN 101,687,971 B
  • Filed: 07/01/2008
  • Issued: 11/25/2015
  • Est. Priority Date: 07/11/2007
  • Status: Active Grant
First Claim
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1. for the preparation of the method for the polyurethane foam of being solidified by silane condensation, the composition containing the Silante terminated polyurethane prepolymer of at least one is wherein made to foam, optionally before foaming, period or be applied on suitable base material afterwards, and solidify in the presence of water, this prepolymer is by making following component reaction until by component A) realize B component) compound NCO group conversion completely and obtain:

  • A) at least one polyethers, it has the number-average molecular weight of 2000-8000g/mol, based on oxide units all contained in polyethers, containing 10-30 % by weight EO unit,B) monoisocyanates containing alkoxysilane groups of at least one formula (I), its molecular weight is 140g/mol-500g/mol,

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