Patent ID: 11969495
Assignee: CONOPCO, INC.
Field: Pharmaceuticals (Chemistry)
Classification: CPC A | IPC A  C

Claim 0:
1. A sulphate-free cleansing composition for hair and scalp comprising, in an aqueous continuous phase:
(A) 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):

R1—CH═CH—CH2—SO3−M+  (I)

in which R1 is 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 the group consisting of:
an alkyl betaine of general formula (II)

R2−N+(CH3)2—CH2—COO−M+  (II)

wherein R2=C12 (Lauryl) or Coco derived;

an alkyl hydroxy sultaine of general formula (III),

R3—N+(CH3)2—CH2—CH(OH)—CH2—SO3−M+  (III)

wherein R3=C12 (Lauryl) or Coco derived;

an alkyl aminopropyl hydroxy sultaine of general formula (IV),

R4—CO—NH—(CH2)3—N+(CH3)2—CH2—CH(OH)—CH2—SO3−M+  (IV)

wherein R4=C12 (Lauryl) or Coco derived;

an alkyl amphoacetate of general formula (V),

R5—CO—NH—(CH2)2—N(CH2—CH2—OH)(CH2—COO−M+)  (V)

wherein R5=C12 (Lauryl) or Coco derived;

and mixtures thereof;

(B) from 0.05 to 0.9 wt % of a cationic conditioning polymer;
(C) from 0.05 to 10 wt % of a silicone emulsion;
(D) a cationic deposition polymer;
(E) an inorganic electrolyte; and
(F) water;
wherein 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;
wherein the composition is free of nonionic surfactants;
wherein the composition is free of thickening polymers and secondary surfactants not defined in (ii); and
wherein the composition has a viscosity from 3,500 to 15,000 mPa·s when measured using a Brookfield V2 viscometer with spindle RTV5 for 1 minute at 20 rpm and 30° C.