US 12,403,084 B2
Cleansing composition
Robert Machen, Wirral (GB); Arash Mojaher Moghadam, Wirral (GB); Joseph Muscat, Warrington (GB); Robert George Riley, Chester (GB); and Pierre Starck, Chester (GB)
Assigned to Conopco, Inc., Englewood Cliffs, NJ (US)
Appl. No. 17/618,138
Filed by Conopco, Inc., Englewood Cliffs, NJ (US)
PCT Filed Jun. 16, 2020, PCT No. PCT/EP2020/066615
§ 371(c)(1), (2) Date Dec. 10, 2021,
PCT Pub. No. WO2020/254318, PCT Pub. Date Dec. 24, 2020.
Claims priority of application No. 19181766 (EP), filed on Jun. 21, 2019.
Prior Publication US 2022/0233427 A1, Jul. 28, 2022
Int. Cl. A61K 8/73 (2006.01); A61K 8/06 (2006.01); A61K 8/44 (2006.01); A61K 8/46 (2006.01); A61K 8/81 (2006.01); A61K 8/89 (2006.01); A61K 8/891 (2006.01); A61Q 5/02 (2006.01); A61Q 5/12 (2006.01)
CPC A61K 8/891 (2013.01) [A61K 8/062 (2013.01); A61K 8/44 (2013.01); A61K 8/466 (2013.01); A61K 8/737 (2013.01); A61Q 5/02 (2013.01); A61K 2800/30 (2013.01); A61K 2800/48 (2013.01)] 18 Claims
 
1. 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, a charge density at pH 7 above 4, and is a homopolymer of (3-acrylamidopropyl) trimethyl ammonium chloride;
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):
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 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; 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 when measured using a Brookfield V2 viscometer using a spindle RTV5 for 1 minute at 20 rpm at 30° C.