Alkoxysilane- and allophanate-functionalized coating materials

An alkoxysilane-functionalized and allophanate-functionalized coating material comprising

• a) a binder component of 10-99 wt % of at least one reaction product of
• one an alkoxysilane-containing monourethane A) of formula 1
• Rn(OR1)3-nSi—R2—NH—(C═O)—OR3 formula 1
• wherein R, R1, and R3 independently of one another represent hydrocarbon radicals, and R2 is a diradical, having 1-8 carbon atoms, wherein these may be linear, branched or cyclic or else may be integrated together to form a cyclic system, and n represents 0-2, and
• a diisocyanate B),
• optionally in the presence of at least one catalyst K),
• in a molar ratio of A) to B) of from 1.0:1.5 to 1.0:0.6,
• II,
• and subsequent reaction of the at least one reaction product
• with at least one diol and/or polyol C),
• in the presence of at least one catalyst K),
• in a ratio of NCO groups of reaction product to OH groups of the diol and/or polyol C) of from 1.0:1.5 to 1.0:0.6;
• b) from 1-90 wt % of a hydroxyl-containing or amino-containing binder component,
• c) from 0-50 wt % of at least one aromatic, aliphatic or cycloaliphatic polyisocyanate having an NCO functionality of at least 2,
• d) from 0-5 wt % of at least one catalyst,
• wherein a)-d) add up to 100 wt %,
• e) optionally auxiliaries and/or additives,
• f) optionally solvents.