MICROCAPSULES HAVING HIGHLY BRANCHED POLYMERS AS CROSS-LINKING AGENTS

摘要

The present invention relates to microcapsules comprising a capsule core and a capsule wall, obtainable according to a method comprising the radical polymerization of an oil-in-water emulsion comprising the following components: 30 to 90 % by weight relative to the total weight of the monomers of one or more monomers (monomers I) from the group comprising C1-C24-alkyl esters of acrylic and/or methacrylic acid, acrylic acid, methacrylic acid, maleic acid, fumaric acid, and itaconic acid, 10 to 70 % by weight relative to the total weight of the monomers of one or more ethylenic unsaturated cross-linking agents (monomers II), wherein at least 10 % by weight relative to the total weight of the monomers I, II, and III is a highly branched polymer cross-linking agent, 0 to 30 % by weight relative to the total weight of the monomers (monomer III), different from monomer I, and hydrophobic core material, to a method for the production thereof, and to the use thereof.