Patent ID: 7939596

Claim:
An aqueous coating material, comprising: (A) at least one polyurethane which is ionically stabilized, nonionically stabilized, or a combination thereof, and which is saturated, unsaturated, grafted with olefinically unsaturated compounds, or a combination thereof; (B) at least one wetting agent or dispersant; and (C) from 0.1 to 10% by weight of at least one organic compound selected from the group consisting of dimethyl sulfoxide, sulfolane, 2-methyl-1-butanol, 3-methyl-1-butanol, 2-methyl-1-pentanol, hexyl glycol, 1,6-hexanediol, diethylene glycol, triethylene glycol, glycerol, trimethylolpropane, pentaerythritol, sorbitol, glycerol ethoxylate, ethyl 3-ethoxypropionate, gamma-butyrolactone, N-(2-hydroxyethyl) piperidine, N-methylmorpholine, N-(2-hydroxyethyl)morpholine, N-acetylmorpholine, N-cyclohexylpyrrolidone, N-octyl-2-pyrrolidone, and a combination thereof, the % by weight based on the aqueous coating material.