Patent GB-1443959-A (GB)
Title: Mild thickened shampoo compositions with conditioning properties
IPC: C11D1/10
Filed: 1973-12-11
Abstract: 1443959 Mild shampoos PROCTER & GAMBLE CO 11 Dec 1973 [11 Dec 1972] 57287/73 Heading C5D A thickened mild liquid shampoo composition having conditioning properties, comprises: (A) from 4% to 8% of an anionic surfactant selected from (1) a surfactant of the general formula R(OC 2 H 4 ) n OSO 3 M, wherein R is a hydrophobic group selected from alkyl groups containing from 8 to 16 carbon atoms, alkylphenyl groups wherein the alkyl group contains from 6 to 15 carbon atoms, and fatty acid amido groups wherein the fatty acid contains from 8 to 16 carbon atoms; n is a number from 1 to 10; and M is a non-toxic cation which makes the surfactant water-soluble, (2) a water-soluble polyethoxylated fatty alcohol sulfosuccinate monoester, (3) a water-soluble N-fatty acyl sarcosinate containing a fatty acyl group containing from 8 to 16 carbon atoms, (4) a water-soluble alkyl sulphate containing from 8 to 16 carbon atoms, and (5) a water-soluble N-fatty acyl-N-methyl taurine containing a fatty acyl group containing from 8 to 16 carbon atoms; (B) a surfactant selected from (1) a zwitterionic surfactant having the general formula wherein A is 0 and B is 1, or A is 1 and B is 0; and C is 0 or 1 when Y is a carboxylate group, and C can only be 1 when Y is a sulphonate group; each R<SP>2</SP> is an alkyl group containing from 8 to 16 carbon atoms or a moiety having the general formula R<SP>5</SP>-C(O)NH-R<SP>6</SP>- wherein R<SP>6</SP> is an alkyl group containing from 8 to 16 carbon atoms and R<SP>6</SP> is an alkylene group containing from 1 to 5 carbon atoms; each R<SP>3</SP> is an alkyl, hydroxyalkyl or alkoxyalkyl groups which can be connected to form a ring and each of which contains from 1 to 3 carbon atoms; Y is a sulphonate or carboxylate group; and R is an alkylene group containing from 1 to 5 carbon atoms when Y is a carboxylate group and is an alkylene or hydroxyalkylene group containing from 2 to 5 carbon atoms when Y is a sulphonate group, the hydroxy group of the hydroxyalkylene group being on a secondary carbon atom, (2) a water soluble N-alkyl #- aminopropionate wherein the alkyl group contains from 8 to 16 carbon atoms, and (3) a water - soluble N - alkyl # - iminodipropionate wherein the alkyl group contains from 8 to 16 carbon atoms; (C) a polyethoxylated non-ionic surfactant selected from (1) polyethoxylated alkyl alcohols, said alcohols containing an alkyl group containing from 8 to 16 carbon atoms and said polyethoxylated alcohols containing from 10 to 45 ethoxy moieties per molecule, (2) polyethoxylated alkylphenols wherein the alkyl group contains from 6 to 15 carbon atoms and wherein the polyethoxylated alkylphenol contains from 10 to 45 ethoxy moieties per molecule, (3) polyethoxylated mono fatty acid esters of sorbitol wherein said fatty acids contain from 8 to 18 carbon atoms and said polyethoxylated mono fatty acid ester of sorbitol contains from 10 to 45 ethoxy moieties per molecule, (4) polyethoxylated polypropylene glycol having a molecular weight of from 2000 to 6000 and containing from 40% to 60% by weight of polyethoxy groups, and (5) polyethoxylated fatty acids wherein said fatty acid contains from 8 to 16 carbon atoms and said polyethoxylated fatty acid contains from 10 to 45 ethoxy moieties per molecule; (D) from 50% to 85% water; and (E) as a thickener and hair-conditioning agent, from about 0À2% to 4% of a quaternary nitrogen-containing cellulose ether having substituent groups of the general formula wherein each R<SP>7</SP> is a methyl or ethyl group; (m +p) is from 1 to 10, n is from 0À1 to 0À5, the degree of substitution of the cathonic group on the cellulose is from 0À1 to 0À5, and the viscosity of a 1% solution of the cellulose ether at 25 C. is from 100 to 2000 centipoises, the molecular ratio of (A) to (B) being from 1 : 1 to 4 : 1; the weight ratio of (A) + (B) to (C) being from 2 : 1 to 1 : 2; and the pH of the composition being from 6À0 to 8À0. Optional ingredients are (F) other non-ionic thickeners (G) ethanol (H) antibacterial and antidandruff agents (I) conventional additives. Specification 1,443,960 is referred to.