Patent ID: 7259207

Claim:
A one-component polyurethane adhesive (1-C PU adhesive) comprising at least one NCO-terminated PU prepolymer; at least one thickener and optionally at least one additive; wherein: (A) the NCO-terminated PU prepolymer is substantially linear; (B) the thickener comprises a highly disperse silica in a concentration of 2.0 to 8.0% by weight, based on the prepolymer; (C) the additive is present at less than 10% by weight, based on the prepolymer; and (D) the one component polyurethane adhesive is paste form and has an Expressed Volume as measured according to DIN EN 29048, greater than 2,000 g/min. at 23° C. and a Creep Resistance as measured according to DIN EN 27390 below 6.0 after 5 mins; and (E) the NCO-terminated PU prepolymer has a viscosity at 23° C. of 500 to 3500 mPas.