Carrier system for fragrances

摘要

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 for the preparation of the emulsion lies in the range of from 15 min to 180 min.

主权项

1. A microcapsule comprising a core of hydrophobic material comprising at least one fragrance and a microcapsule shell obtainable by the suspension polymerization of the following monomers;
(a) one or more C1-C24-alkyl ester of (meth)acrylic acid (monomer A), (b) one or more bi- or polyfunctional monomer (monomer B) and (c) optionally, one or more other ethylenically unsaturated monomer (monomer C),
wherein an emulsion is prepared with a shear rate for the preparation of the emulsion in the range of from 150 to 500 rpm, and with a stirring time for the preparation of the emulsion in the range of from 15 min to 180 min, using an anchor-type stirring blade or a MIG-stirrer, wherein the microcapsule has a mean diameter in the range from 25 to 50 μm.