Patent ID: 8642669

Claim:
A foamable mixture, comprising at least one alkoxysilane-terminated prepolymer, synthesized from a) at least one isocyanato-functionalized alkoxysilane, synthesized from at least one hydroxy- and/or amino-functional alkoxysilane and at least one di- or polyisocyanate, and b) at least one diol or triol or polyol with an average molecular weight M n of 400 to 2000; and at least one blowing agent, wherein the foamable mixture has a dynamic viscosity of 100 to 25,000 mPas at 23° C. (measured using an ARES rotational rheometer, after replacing the blowing agent with a methylal/pentane mixture of the same weight in a weight ratio of 40:60; 30 Hz; cone-plate (cone angle))0.5°.