PROCESS FOR PRODUCING A MICROCAPSULE DISPERSION COMPRISING MICROCAPSULES WITH A HYDROPHILIC CAPSULE CORE

The present invention relates to a process for producing a microcapsule dispersion comprising microcapsules comprising a hydrophilic capsule core and a capsule wall polymer, wherein a water-in-oil emulsion comprising a hydrophobic diluent as continuous phase, and the hydrophilic capsule core materia...

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Bibliographische Detailangaben
Hauptverfasser:	BRUST, JUTTA, KLEIN, REGINA, LEIBACH, PATRICK, PIESCH, ACHIM, STRACKE, JOSEPH, KATZ, BRITTA, SCHRODER-GRIMONPONT, TINA, HAHN, PETER
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AGRICULTURE ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES ANIMAL HUSBANDRY ARTIFICIAL STONE BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES CANDLES CEMENTS CERAMICS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE DETERGENT COMPOSITIONS DETERGENTS FATTY ACIDS THEREFROM FISHING FORESTRY HUMAN NECESSITIES HUNTING HYGIENE LIME, MAGNESIA MEDICAL OR VETERINARY SCIENCE METALLURGY PERFORMING OPERATIONS PEST REPELLANTS OR ATTRACTANTS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PLANT GROWTH REGULATORS PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF RECOVERY OF GLYCEROL REFRACTORIES RESIN SOAPS SLAG SOAP OR SOAP-MAKING THEIR RELEVANT APPARATUS TRANSPORTING TRAPPING TREATMENT OF NATURAL STONE USE OF SINGLE SUBSTANCES AS DETERGENTS
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Beschreibung
Zusammenfassung:	The present invention relates to a process for producing a microcapsule dispersion comprising microcapsules comprising a hydrophilic capsule core and a capsule wall polymer, wherein a water-in-oil emulsion comprising a hydrophobic diluent as continuous phase, and the hydrophilic capsule core material, a monomer composition and an amphiphilic polymer is produced and then the monomers are free-radically polymerized, where the monomer composition comprises 30 to 100% by weight of one or more monomers selected from C1-C24-alkyl esters of acrylic acid and/or methacrylic acid (monomers I), 0 to 70% by weight of one or more monomers selected from acrylic acid, methacrylic acid, maleic acid, acrylic acid esters and/or methacrylic acid esters which carry hydroxy and/or carboxy groups (monomers II), 0 to 50% by weight of one or more monomers which has two or more ethylenically unsaturated radicals, (monomers III) and 0 to 30% by weight of one or more other monomers (monomers IV), in each case based on the total weight of the monomers, and the amphiphilic polymer is obtainable by free-radical polymerization of a monomer composition comprising at least one ethylenically unsaturated hydrophilic monomer and at least one ethylenically unsaturated hydrophobic monomer, to the microcapsules obtainable thereby, and to their use for the delayed release of active ingredients for construction, cosmetics, detergents and cleaners or crop protection applications.