Two-component polyurethane adhesives
AssigneeBayer Aktiengesellschaft
InventorsRainer Trinks, Heinrich Konigshofen, Otto Ganster, Horst Stepanski, Jose Colinas-Martinez
Life of this patent
Estimating the term…
Abstract
Disclosed herein is a two-component polyurethane adhesive containing an isocyanate component a), an active hydrogen containing component which is stable against demixing b), optionally a catalyst for the reaction of a) with b) and optionally an auxiliary agent and an additive, characterized in that an active hydrogen containing component which is stable against demixing b) contains at least one hydroxyl group-containing low molecular weight chain lengthening agent having at least one C-C double bond or C-C triple bond and having a molecular weight of at least 86 and a functionality of at least 2 and containing no carboxyl groups.
Claims4
A two-component polyurethane consisting essentially of an isocyanate component a), an active hydrogen containing component which is stable against demixing b), optionally a catalyst for the reaction of a) with b) and optionally an auxiliary agent and an additive, characterized in that the active hydrogen containing component which is stable against demixing b) contains a hydroxyl group-containing low molecular weight chain lengthening agent having a C--C double bond or C--C triple bond and having a molecular weight of at least 86 to 400 and a functionality of at least 2 and containing no carboxyl groups.
Dependencies are inferred from the claim text.