Patent ID: 8785511

Claim:
A foamable composition, comprising (A) at least one siloxane of the formula where R in each occurrence is the same or different and is hydrogen or a monovalent, optionally substituted hydrocarbon radical, R 1 in each occurrence is the same or different and is a divalent, optionally substituted hydrocarbon radical optionally interrupted by heteroatoms, R 2 in each occurrence is the same or different and is a divalent, optionally substituted hydrocarbon radical optionally interrupted by heteroatoms, R 3 in each occurrence is the same or different and is hydrogen or a monovalent, optionally substituted hydrocarbon radical, X in each occurrence is the same or different and is —O—, —S— or —NR 4 —, R 4 is hydrogen or a monovalent, optionally substituted hydrocarbon radical, n is the same or different and is an integer not less than 1, and m is an integer not less than 1, with the proviso that at least one R 3 radical in formula (I) is an optionally substituted hydrocarbon radical having at least one hydroxyl group and/or thiol group, and (B) a polyisocyanate.