Patent ID: 8299201

Claim:
A one-part polyurethane prepolymer composition comprising, in a single part, at least one polyurethane prepolymer having terminal isocyanate groups, prepared from at least one polyisocyanate with at least one polyol; and at least one catalyst system obtained from components consisting of one bismuth compound and one aromatic nitrogen compound, wherein the aromatic nitrogen compound is coordinatively bonded with bismuth, and the aromatic nitrogen compound has the formula A or B, where: R1, R2, R3, R4, R5 and R6 each independently of one another is H, methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, tert-butyl, C 5 to C 12 alkyl, COOH, COOR′ or halogen, R7 is a C 1 to C 8 alkyl, a hydroxyl group (OH), O—(CH 2 CH 2 O) x —R′ with the values for x of 1-6, or O—(CH 2 CH(CH 3 )O) x —R′ or a positional isomer thereof, with the values for x of 1-6, R8 is alkylene or alkylene ether, R′ is alkyl, and R″ is alkyl or alkyl with heteroatoms.