Patent ID: 7268177

Claim:
A solid emulsion, which comprises: a thermoplastic elastomer, which is selected from the group consisting of poly(styrene-olefin-styrene) block copolymers, poly(styrene-olefin) block copolymers and their mixtures, an oily phase, which is constituted of a liquid plasticizer, an aqueous phase, and an amphiphilic ABA type block copolymer comprising two terminal thermoplastic poly(styrene) blocks A and one central elastomeric block B, in which the central block B is a poly(ethylene-butylene) sequence comprising grafted hydrophilic groups, it being possible for said amphiphilic copolymer ABA to be represented schematically by the following structure: in which R 1 and R 2 , which are identical or different, represent a hydrophilic group of average molar mass of less than 10,000, selected from the group consisting of: in which n, a and b represent an integer.