Conopco, Inc.

Unilever IP Holdings B.v.

Unilever Global IP Limited

Robert Machen

Joseph Muscat

Pierre Starck

Robert George Riley

Smita Puntambekar

Arash Mojaher Moghadam

Annie Jaye Galpin

An aqueous, sulphate free shampoo composition for hair and scalp comprising:—a. a pre-formed emulsified silicone; b. a cationic deposition polymer; c. a hair substantive cationic conditioning polymer which is an APTAC polymer having a molecular weight of less than 1 million Daltons, preferably selected from a homopolymer of (3-acrylamidopropyl) trimethyl ammonium chloride and a (3-acrylamidopropyl) trimethyl ammonium chloride/acrylamide copolymer; d. a total amount of anionic surfactant, amphoteric surfactant and zwitterionic surfactant consisting of: (i) from 3 wt % to 13 wt %, by weight of the total composition at 100% activity, of an alpha olefin sulfonate anionic surfactant of general formula (I): R—CH═CH—CH—SO(I) in which Ris selected from linear or branched alkyl groups having from 11 to 13 carbon atoms and mixtures thereof; and M is a solubilizing cation; (ii) from 1 to 6%, by weight of an amphoteric or zwitterionic surfactant, selected from an alkyl betaine of general formula (II) R—N(CH)—CH—COOM(II) wherein R=C12 (Lauryl) or Coco derived; an alkyl hydroxy sultaine of general formula (III), R—N(CH)—CH—CH(OH)—CH—SOM(III) wherein R=C12 (Lauryl) or Coco derived; an alkyl aminopropyl hydroxy sultaine of general formula (IV), R—CO—NH—(CH)—N(CH)—CH—CH(OH)—CH—SOM(IV) wherein R=C12 (Lauryl) or Coco derived; an alkyl amphoacetate of general formula (V), R—CO—NH—(CH)—N(CH—CH—OH)(CH—COOM) (V) wherein R=C12 (Lauryl) or Coco derived; and mixtures thereof; and e. a suspending agent in which the weight ratio of (i) to (ii) ranges from 1:1 to 6:1 and the pH of the composition is from 3 to 6.5; and wherein the composition has a viscosity from 3,500 to 15,000 mPa·s, preferably from 4,000 to 12,000 mPa·s when measured using a Brookfield V2 viscometer using a spindle RTV5, for 1 minute at 20 rpm at 30° C. results in superior deposition and retention of silicone on hair.

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Wirral, United Kingdom

Robert Machen