Solutia Austria Gmbh

Wrner Staritzbichler

Gert Dworak

Coating composition especially for preparing automotive surfacers, comprising a condensation product A of a carboxyl group-containing resin A1 and a hydroxyl group-containing resin A2, and a curing agent C, which becomes active only at elevated temperature of at least 80&deg; C., and comprises a mixture of a water-insoluble blocked isocyanate C1 and a hydrophilically modified isocyanate C2.

Aqueous coating composition

Coating composition especially for preparing automotive surfacers, comprising a condensation product A of a carboxyl group-containing resin A1 and a hydroxyl group-containing resin A2, a curing agent C which becomes active only at an elevated temperature of at least 80&deg; C., with the proviso that at least 20% of the mass of the curing agent C is insoluble in water, and a low molar mass polyester B having a hydroxyl number of from 100 to 450 mg/g and a Staudinger Index of from 2.5 to 6 cm /g, obtainable by condensing aliphatic polyols B1 and aliphatic, cycloaliphatic or aromatic polycarboxylic acids B2, the average functionality (number of the hydroxyl groups and/or acid groups per molecule) of component B1 being greater by at least 0.2 than that of component B2.

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Graz, Austria

Wrner Staritzbichler