Abstract: The present invention relates to a polycondensation and/or addition product containing carboxyl groups and amino groups. This can be obtained by reactinga) polycarboxylic acids or anhydrides thereof, if appropriate together with monocarboxylic acids,b) polyols, if appropriate together with monools, and, if appropriatec) further modifying components, and, if appropriate,d) a component which is capable of reacting with the reaction product from a), b) and, if appropriate, c), with the proviso that the final product contains tertiary amino groups which originate from components a) and/or b) and/or d), and the reaction product from a), b), if appropriate c) and if appropriate d) has an acid number from 5 to 200, preferably 10 to 130, and an amine number from 3 to 150, preferably 10 to 100.

Abstract: The invention relates to copolymers containing hydroxyl groups having a hydroxyl value of 50 to 200 mg of KOH/g and an average molecular weight (number average) of 1500 to 6000, which can be prepared by free-radical solution polymerization at temperatures of 130.degree. to 200.degree. C. of 5 to 25% by weight of vinyl ester monomers, 10 to 50% by weight of vinylaromatic monomers, 10 to 50% by weight of hydroxyalkyl ester monomers and, if desired, other monomers, in which the vinyl ester is initially used and the remaining monomers are added over a monomer addition period which is the same for all monomers as follows:i) The amount of the acrylate monomer added per unit time remains constant.

Abstract: The present invention relates to a coating agent containing A) a component containing carboxyl and tertiary amino groups and a polyepoxy resin B). A) consists of 10 to 90% by weight of a carboxyl- and amino-containing polyacrylate (A1) having an acid number from 20 to 140 and an amine number from 5 to 60 and 90 to 10% by weight of a carboxyl- and amino-containing polyester (A2) having an acid number from 10 to 160 and an amine number from 3 to 90.(A2) is obtainable by reaction ofa) polycarboxylic acids or anhydrides thereof, if desired together with monocarboxylic acids,b) polyols, if desired together with monools, andc) further modifying components and, if desired,d) a component which reacts with the reaction product from a), b) and possibly c),with the proviso that the final product contains tertiary amino groups originating from component a) and/or b) and/or d), the sum of components (A1) to (A2) being 100% by weight.

Abstract: A polycondensation and/or addition product containing carboxyl groups and tertiary amino groups, coating agents based on the latter, and the use thereof.The present invention relates to a polycondensation and/or addition product containing carboxyl groups and amino groups. This can be obtained by reactinga) polycarboxylic acids or anhydrides thereof, if appropriate together with monocarboxylic acids,b) polyols, if appropriate together with monools, and, if appropriatec) further modifying components, and, if appropriate,d) a component which is capable of reacting with the reaction product from a), b) and, if appropriate, c), with the proviso that the final product contains tertiary amino groups which originate from components a) and/or b) and/or d), and the reaction product from a), b), if appropriate c) and if appropriate d) and an acid number from 5 to 200, preferably 10 to 130, and an amine number from 3 to 150, preferably 10 to 300.

Abstract: The present invention relates to a coating composition containing an organic solvent, a mixture of a polyhydroxy component (A) and a polyisocyanate component (B), and a pot life extender. The polyhydroxy component has an acid value from 5 to 25 mg of KOH/g, and a mixture consisting of 0.1 to 4.0% by weight, based on the total weight of the coating composition, of a compound having a tertiary amino group or an amide group (C), and of 1 to 15% by weight, based on the total weight of (A) and (B), of a tertiary monoalcohol is used as pot life extender. 2-methyl-2-propanol and 2-methyl-2-butanol are excluded as the tertiary alcohols.The present invention also relates to the use of the coating compositions in motor car refinishing in particular.