Patent ID: 8431675

Claim:
A curable adhesive or sealant composition comprising a silylated polyurethane prepared by (A) reacting (i) at least one polyol compound having a molecular weight of 4000 to 30,000 g/mol and at least one compound that is monofunctional with regard to isocyanates with (ii) at least one diisocyanate, in a stoichiometric excess of the sum of polyol compound(s) and monofunctional compound relative to the diisocyanate compound(s), forming a polyurethane prepolymer which is hydroxyl-terminated; and (B) reacting the polyurethane prepolymer with one or more isocyanatosilanes of the formula (I): OCN—R—Si—(R 1 ) m (—OR 2 ) 3-m (I) in which m is 0, 1 or 2, each R 2 is an alkyl residue having 1 to 4 carbon atoms, each R 1 is an alkyl residue having 1 to 4 carbon atoms and R is a difunctional organic group; the composition having a viscosity of 30,000 mPas to 150,000 mPas.