Patent ID: 7589134

Claim:
An adhesive composition comprising at least one silane-crosslinking polymer, fine-particle coated calcium carbonate, and soot, wherein a) the at least one silane-crosslinking polyurethane polymer is constructed in accordance with the following formula (I): wherein R 1 is an alkyl group having 2 to 8 carbon atoms, linear or branched, R 2 is an alkyl radical having 1 to 8 carbon atoms, R 3 is an alkyl radical having 1 to 5 carbon atoms, a is 0 or 1, Z is a sulfur atom or of the formula of NR 4 , wherein R 4 is a hydrogen atom or an organic radical, n is an integer from 2 to 4, and A is a radical of a polyurethane prepolymer with the functionality n, b) the fine-particle coated calcium carbonate is coated with fatty acid, and having a particle size of from 0.05 to 1 micron and a density of approximately 2.6-2.7 g/ml, and c) the soot has a density of approximately 1.8 g/ml, wherein the adhesive composition is comprised of from 20 to 50 ml of fillers b)+c) per 100 g polymer a), and the volume ratio of b) to c) in the adhesive composition is from 70/30 to 30/70.