Unilever Home and Personal Care Usa, Division of Conopco, Inc.

Anthony Moretta

Ezat Khoshdel

Euan Stuart Reid

Gerald Adams

Melanie Ruth Ashton

Yvonne Christine Plant

Llyr Glyndwr Griffiiths

A process for making a polysiloxane block copolymer which is built up from units of the formula &lsqb;A&rsqb; &lsqb;B&rsqb;, in which A is a polymeric block built up from radically polymerisable monomer, and B is a polysiloxane block, the process comprising the steps of polymerising a radically polymerisable monomer in the presence of an atom transfer radical initiator to form an polymer which is end-functionalized with a leaving group capable of nucleophilic substitution by nucleophilic end-groups on a polysiloxane, and reacting the polymer with a polysiloxane having nucleophilic end-groups so that a polysiloxane block copolymer is formed via a nucleophilic displacement reaction between the end-groups on the polysiloxane and leaving groups on the polymer respectively. Also provided is a cosmetic and personal care composition, such as a hair styling composition, comprising the polysiloxane block copolymer as described above.

Polysiloxane block copolymers in topical cosmetic and personal care compositions

A single-phase autophobic hairspray composition containing 0.5% to 10% by weight of a film-forming hairspray resin; 10% to 60% by weight of a binary mixed propellant system; 0.01% to 1.0% by weight of an autophobic silicone hairspray additive; and 10% to 25% by weight water, is described.

Autophobic hair spray composition comprising film forming resin, propellant, and autophobic hair spray additive

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Bebington, United Kingdom

Anthony Moretta