Patent ID: 8114233

Claim:
A method for adhesive bonding of surfaces, comprising applying to at least one of said surfaces a foamable mixture (M) comprising (A) at least one prepolymer (A) having groups of the formula [1] -A-(CH 2 ) x —SiR 1 a (OR 2 ) 3-a [1], in which A is a divalent binding group selected from —O—, —S—, —(R 3 )—, —NH—CO—O—, O—CO—NH, —NH—CO—N(R 3 )—, N(R 3 )—CO—NH, or a nitrogen atom which is part of a heterocycle, R 1 is an optionally halogen-substituted alkyl, cycloalkyl, alkenyl or aryl radical having up to 10 carbon atoms, R 2 is hydrogen, an alkyl radical having 1 to 6 carbon atoms or an ω-oxaalkyl alkyl radical having altogether 2-10 carbon atoms and R 3 is hydrogen, an optionally halogen-substituted cyclic, linear or branched C 1 to C 18 alkyl or alkenyl radical or a C 6 to C 18 aryl radical, x is a number from 1 to 10, a is a number from 0 to 2, and (B) at least one blowing agent (B), and foaming the foamable mixture (M) on at least one of said surfaces to be adhesively bonded or between said surfaces to be adhesively bonded to give a foam (MS), or applying a foam (MS) which has been prepared from the mixture (M) to at least one of said surfaces to be adhesively bonded or between the surfaces to be adhesively bonded, the foam (MS) having a foam structure comprising gas bubbles, and pressing the foam (MS) between the surfaces to be adhesively bonded, wherein the foam structure of the foam (MS), when it has been pressed between the surfaces to be adhesively bonded, is destroyed in part, such that the foam, after pressing, comprises less than 60% of gas bubbles, based on its volume, and curing the foam.