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Moisture curable polyurethane polymers

  • US 4,625,012 A
  • Filed: 08/26/1985
  • Issued: 11/25/1986
  • Est. Priority Date: 08/26/1985
  • Status: Expired due to Term
First Claim
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1. A method for making a moisture curable polyurethane polymer having terminal isocyanate groups and pendant silane groups having at least one hydrolyzable alkoxy group bonded to silicon, which method comprises reacting(1) an isocyanatosilane adduct having at least two isocyanato groups and(2) an isocyanate different from (1) and having at least two isocyanato groups with(3) a polyol,said isocyanatosilane adduct being the reaction product of an isocyanate having at least three isocyanato groups with an organofunctional alkoxysilane.

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