Conopco, Inc.

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

Yvonne Christine Plant

Ezat Khoshdel

Richard Skinner

Euan Stuart Reid

Fraser Ian Bell

Gerald Adams

Karen Maria Devine

Colina MacKay

Anthony Moretta

Teresa Lyons

Yann Leray

The invention provides a hair treatment composition comprising a combination of a sugar, an aliphatic amino acid and a basic amino acid. The composition is particularly suitable for the treatment of hair which is dry, damaged and/or prone to manageability problems.

Hair treatment compositions

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

Growing community of inventors

Wirral, United Kingdom

Yvonne Christine Plant