| abstract |
Procedure for the manufacture of polyester containing carboxylic groups, with an acid number of 30 to 150, a hydroxide number of 20 to 150 and a Patton's alkyd constant of 0.9 to 1.2 which condensate contains a) saturated bi and / or aliphatic polyvalent alcohols and / or cycloaliphatic. B) aliphatic, aromatic and / or cycloaliphatic dicarbonic acids. C) tri and / or polybasic cyclic carbonic acids characterized in that of the cyclic tri and / or polybasic carbonic acids attached to the polyester through a carboxyl group, at least other carboxyl groups are condensed with aliphatic and / or cycloaliphatic monoalcohols with 3 to 30 atoms carbon and / or secondary amines with 6 to 36 carbon atoms. |