Multi-component resin system comprising an isocyanate mixture

Abstract

A multi-component resin system has (i) at least one isocyanate component (A) having at least one non-cyclic aliphatic polyisocyanate and at least one cycloaliphatic polyisocyanate having an average NCO functionality of about 2 or greater and (ii) at least one amine component (B) having at least one organic amine reactive towards isocyanate groups having an average NH functionality of about 2 or greater. Employing the cycloaliphatic polyisocyanate in addition to the non-cyclic aliphatic polyisocyanate has the effect that at a substrate temperature significantly above 23° C., a higher bond stress is achieved than is the case with a comparative multi-component resin system in which the cycloaliphatic polyisocyanate is absent. Such a multi-component resin system finds application for the chemical fastening of construction elements in depressions, or as an adhesive.

Dependencies are inferred from the claim text.