PROCESS FOR THE MANUFACTURE OF A CARRIER SYSTEM FOR FRAGRANCES

• Main Authors: STRACKE, Joseph, NESS, Jeremy, LAUBENDER, Matthias, BENLAHMAR, Ouidad, LEIBACH, Patrick, KLEIN, Regina
• Format: Patent
• Language: English; French; German
• Published: 26.02.2020
• Subjects: ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES; CANDLES; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; DETERGENT COMPOSITIONS; DETERGENTS; FATTY ACIDS THEREFROM; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; RECOVERY OF GLYCEROL; RESIN SOAPS; SOAP OR SOAP-MAKING; THEIR RELEVANT APPARATUS; TRANSPORTING; USE OF SINGLE SUBSTANCES AS DETERGENTS

The present invention relates to a carrier system for fragrances, to the production thereof and to the use of the carrier system in laundry and cosmetic formulations. Accordingly, the present invention is directed to a microcapsule comprising a core of hydrophobic material composed of at least one fragrance or perfume and a microcapsule shell obtainable by the suspension polymerization of the following monomers: (a) one or more C1-C24-alkyl ester(s) of (meth)acrylic acid (monomer A), (b) one or more bi-or polyfunctional monomers (monomer B) and (c) optionally, one or more other ethylenically unsaturated monomers (monomer C), wherein the shear rate for the preparation of the emulsion lies in the range of from 150 to 500 rpm and the stirring time time for the preparation of the emulsion lies in the range of from 5 min to 180 min.