Patent GB-1443960-A (GB)
Title: Mild shampoo compositions card system of charge counter
IPC: C11D1/94
Filed: 1973-12-11
Abstract: 1443960 Shampoos PROCTER & GAMBLE CO 11 Dec 1973 [11 Dec 1972] 57286/73 Heading C5D A mild shampoo composition which does not irritate the eyes comprises: (A) a polyethoxylated anionic surfactant selected from (1) a surfactant having the general formula 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; an M is a non-toxic cation which makes the surfactant water-soluble, and (2) a water-soluble polyethoxylated fatty alcohol sulphosuccinate monoester wherein the fatty alcohol contains from 8 to 16 carbon atoms and the polyethoxylated fatty alcohol contains from 1 to 10 ethoxy moieties per molecule; (B) a zwitterionic surfactant having the general formula wherein A is 0 and B is 1, or A is 1 and B is 0; 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 group having the general formula R<SP>5</SP>-C(O)NH-R<SP>6</SP>-, wherein R<SP>5</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 group 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<SP>4</SP> is an alkylene group containing from 1 to 5 carbon atoms when Y is a carboxylate group and R<SP>4</SP> is an alkylene or hydroxyalkylene group containing from 2 to 5 carbon atoms when Y is a sulphonate group, the hydroxy group in said hydroxyalkylene group being on a secondary carbon atom ; (C) a polyethoxylated non-ionic surfactant selected from (1) polyethoxylated alkyl alcohols, said alkyl alcohols containing an alkyl group containing from 8 to 16 carbon atoms and said polyethoxylated alkyl 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, said polypropylene glycol having a molecular weight of from 1000 to 15,000 and said polyethoxylated polypropylene glycol containing from 15 to 300 ethoxy moieties per molecule, 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; and (D) water, 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 (E) thickeners such as hydroxyethyl cellulose and carrageenan, (F) anti-dandruff agents such as zinc pyridinethiol N-oxide and 2-bromo-2- nitro-1,3-propanediol, and (G) other conventional additives. The shampoos may be in liquid or paste form. Specification 1,443,959 is referred to.