MICROCAPSULES

摘要

A novel microcapsule which is endowed for example with reduced leakage of encapsulated materials. The microcapsule contains one or more fragrances and is suitable for inclusion in non-edible consumer goods products, laundry products, personal care products and cosmetic products. The microcapsule can be obtained in an economic and efficient manner by polymerizing an emulsion so that emulsion droplets are encapsulated into a subsequently cured polymeric shell.

主权项

1. A microcapsule comprising a perfume composition enclosed within a polymeric shell, wherein:
the perfume composition includes a fragrance, and the polymeric shell includes in polymerized form a blend including:
i) between 40% and 70% by weight over the combined weight of compounds (I) and (II) in the blend of a compound (I) which is a combination of:
ia) between 50% and 100% by weight over the weight of the combination of a neutral monomethacrylate monomer (Ia) having a solubility in water at pH 7 and 20° C. equal to, or more than 2 g/100 ml,ib) between 0% and 50% by weight over the weight of the combination of another neutral monoethylenically unsatured monomer (Ib), andic) between 0% and 15% by weight over the weight of the combination of a ionized or ionizable monoethylenically unsatured monomer (Ic),ii) between 30% and 60% by weight over the combined weight of compounds (I) and (II) in the blend of a compound (II) which is a polyethylenically unsatured monomer selected from the group consisting of divinylbenzene, trivinylbenzene, a C2-C24 alkyl di- or polyester of (meth)acrylic acid, a C2-C24 alkyl di- or polyamide of (meth)acrylic acid and mixtures thereof.