Water-dilutable polyester resins
AssigneeSurface Specialties Austria GmbH
InventorsGerhard Reidlinger, Johann Billiani, Rudolf Jedlicka, Ewald Zrin, Julius Burkl, Johannes Scherz
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Abstract
A water-dilutable polyester resin ABCD having a mass fraction of from 1 to 10% of units derived from unsaturated cocondensed building blocks, an olefinic double bond content of from 10 to 2 000 mmol/kg, and a sulfonic acid group content of from 20 to 300 mmol/kg, modified if desired by copolymerizing olefinically unsaturated monomers in the presence of the polyester resin, a process for preparing them, and their use in particular in one-component coating compositions in combination with amino resin curatives.
Claims10
A water-dilutable polyester resin ABCD derived from hydroxy-functional compounds A containing on average at least two hydroxyl groups per molecule, from acids B containing on average at least two acid groups per molecule, from unsaturated compounds C containing at least one group which is reactive under condensation conditions with hydroxy-functional or acid functional compounds, the said group being selected from the group consisting of hydroxyl groups, amino groups, carboxylic acid groups, sulfonic acid groups, and phosphonic acid groups, and from compounds D having at least one sulfonic acid group per molecule, and additionally at least one group selected from the group consisting of hydroxyl groups, carboxyl groups, and amino groups, having a mass fraction of from 1 to 10% of units derived from unsaturated cocondensed building blocks, an olefinic double bond content of from 10 to 2 000 mmol/kg, and a sulfonic acid group content of from 30 mmol/kg to 200 mmol/kg.
Dependencies are inferred from the claim text.