Polymerizable compounds and their use as copolymerizable waxy additive for surface coatings

Polymerizable compounds obtainable from in a first stage a) a 3 to 8-valent alcohol Y selected from the group consisting of glycerol, trimethylolpropane, pentaerythritol and sorbitol as well as their dimers and trimers, provided that they comprise not more than 8 OH groups and not more than 15 C atoms and / or their ethoxylation and propoxylation products of 1 to 20 alkoxy groups b) one or more long-chain monocarboxylic acid (s) W, which may contain up to 10 mol .-% of unsaturated and branched chain carboxylic acids (can), and optionally c) a dicarboxylic acid Z, selected from the group hydrogenated dimer fatty acids, hydrogenated trimer acid, dodecanedioic acid, adipic acid, alkyl succinic acid or alkenyl succinic acid, a Vorester is produced, wherein the reaction without a solvent with the Standardveresterungskatalysatoren methanesulfonic acid, acidic ion exchangers, Sn compounds, Titansaureestern or Na methylate is carried out, the setting of the required acid number (aN) is incorporated <10 in a second step without work-up of acrylic acid, methacrylic acid or their esters by direct esterification or transesterification, wherein the molar ratios of the polyhydric alcohols used to Y ...