Emulsion for topical application to keratinous material, for use e.g. in skin- and hair-care products, contains a diblock copolymer with a polystyrene block and a partly-hydrolysed polyethyl acrylate block

摘要

A composition (I) for topical application to keratinous material, in the form of an oil-in-water emulsion in a cosmetically-acceptable medium, contains at least one diblock copolymer (A)-(B) in which block A comprises at least 90 wt.% styrene units, block B comprises (a) not more than 90 wt.% acrylic acid units (optionally in salt form) and (b) at least 10 wt.% 1-4C alkyl acrylate units, and the proportion of block B in the copolymer is more than 60 wt.%. An independent claim is also included for a method for the cosmetic treatment of keratinous material by the application of (I).