Patent GB-818361-A (GB)
Title: Detergent preparations for the hair
Filed: 1955-07-19
Abstract: Cation-active shampoo preparations comprise (a) at least one compound which is free from imidazoline rings containing one or more basic nitrogen atoms, and also at least one nonaromatic residue of more than 6 carbon atoms, in the form of a water-soluble salt, including a quaternary ammonium salt, and (b) a non-ionic condensation product of tertiary dodecyl mercaptan and an alkaline oxide, preferably ethylene oxide and, if desired, (c) a compound of the kind used as an addition to detergent preparations for the hair; (a) may be the lactate of triethanolamine mono-coconut acid ester; the reaction product of coconut fatty acid amide, paraformaldehyde, triethanolamine and sodium carbonate; the lactate of the reaction product of coconut fatty acid with a condensate of monoethanolamine and propylene oxide; the sodium salts of the reaction products of N - hydroxyethyl - N1 - lauroyl - ethylene diamine with glycerol a -chlorhydrin, with chloracetamide, or with mono-chloracetic acid; sodium salts of the reaction products of N-hydroxyethyl - N1 - stearoyl ethylene diamine with glycerol a -chlorhydrin, or with monochloracetic acid; lauramido-ethyl-pyridinium sulphate; the lauryl or coconut acid ester of N : N - dimethylethanolamine hydrochloride; the lauryl ester of triethanolamine hydrochloride; octadecyl pyridinium bromide; dimethyl - octadecyl - hydroxyethyl - ammonium chloride; stearamidoethylene - trimethyl ammonium methosulphate; p - (stearylamino)-phenyl - trimethyl - ammonium methosulphate; or the lactate of the amide of mono-or tri - hydroxyethyl - ethylene diamine with lauric or stearic acid.  The detailed preparation of most of the compounds is supplied (see Group IV (b)); (c) comprises such substances as primary phosphates, glycollic acid, citric acid, and especially lactic acid. Perfumes, dyes, bleaching and thickening agents, and fatty acid alkanolamides, for example, coconut fatty acid ethanolamide, may also be added, and the compositions may be produced in solid, paste, or liquid form. specifications 815,784 and 818,362 are referred to.ALSO:Additives for hair-washing preparations (see Group III) are prepared as follows: (1) ethylene diamine is reacted with ethylene oxide at 65-100 DEG  C. to form N : N : N1-trihydroxyethyl-ethylene diamine which is amidified by reaction with lauric acid at 110-140 DEG  C. in vacuo; (2) coconut oil fatty acid amide is heated with paraformaldehyde and triethanolamine in the presence of sodium carbonate at 60-85 DEG  C. and then further heated in the presence of boric acid under reduced pressure; (3) mono ethanolamine is reacted with propylene oxide (4 mols.) at 110-130 DEG  C. and the product is then esterified with coconut oil fatty acid by heating firstly at 140 DEG  C. and finally at 170-175 DEG  C. under reduced pressure; the lactate of the ester is mentioned; (4) hydroxyethyl-ethylene diamine is heated at the boil with lauric acid in xylene and in the presence of boric acid to give an amide; the product may be reacted with glycerol monochlorhydrin or chlor-acetamide by refluxing in ethanol, or with chloracetic acid at 80 DEG  C. in water, thereafter treating with NaOH; (5) stearic acid is heated with hydroxyethyl ethylene diamine in boiling xylene in the presence of boric acid; the resulting amide may be reacted with chloracetamide, ethylene chlorhydrin or glycerol mono-chlorhydrin and the free base liberated by caustic soda; alternatively the amide may be reacted with chloracetic acid in water at 70-80 DEG  C.; (6) N : N-dimethylethanolamine is esterified with coconut oil fatty acid and then quaternated with chloracetamide. Specifications 815,784 and 818,362, [Group III], are referred to.