Patent GB-793786-A (GB)
Title: Detergent compositions for the hair
Filed: 1954-11-17
Abstract: Imidazoline compounds of the general formula <FORM:0793786/IV (b)/1> in which R represents a non-aromatic hydrocarbon radical containing 7-18 carbon atoms, R1 and R2 represent hydrogen, a radical as defined for R or the grouping <FORM:0793786/IV (b)/2> (R3 represents an alkyl radical containing 1-17 carbon atoms), provided that R, R1 and R2, together contain not more than 20 carbon atoms, and in which n represents a small whole number, for use in hair detergent compositions (see Groups III and VI), are prepared by reacting polyalkylene polyamines, e.g. diethylene triamine, triethylene tetramine, tetraethylene pentamine and polyamines produced by heating an ethylene dihalide with ammonia or an amine, and non-aromatic carboxylic acids of high molecular weight, e.g. caprylic, capric, lauric, myristic, palmitic, stearic, oleic and linoleic acids or their ha.ides, esters or anhydrides.  Salts derived from inorganic and organic acids such as hydrochloric, sulphuric, methylsulphuric, acetic, lactic, formic and citric acid, and quaternary salts derived from, for example, benzyl chloride and dimethylsulphate, of the above imidazoline compounds are also mentioned.  Imidazolines are produced in the examples by reacting diethylene triamine with coconut oil fatty acids, myristic, and caprylic acids, and are converted into amides by reaction with lactic acid; by reacting diethylene triamine and lauric acid and the imidazoline product is converted into an amide by reaction with lactic acid and with acetic anhydride; and by reacting diethylene triamine and caprylic acid and the imidazoline product is converted into a quaternary salt with dimethyl sulphate.ALSO:A cation-active detergent composition for the hair, in solid paste-like or liquid form, comprises in the form of a water-soluble salt, including a water-soluble quaternary ammonium salt, at least one imidazoline containing at least one non-aromatic residue having at least 7 carbon atoms and also containing at least one side chain containing nitrogen, and at least one acid or salt of acid reaction, such as primary phosphates, aliphatic oxycarboxylic acids such as glycollic acid or citric acid, and especially lactic acid, and, if desired, other compounds known to be suitable for use in detergent compositions for the hair, especially a non-ionogenic cleansing agent such as ethylene oxide condensation products of fatty alcohols, fatty amines, and alkyl mercaptans and alkyl-phenols containing an aliphatic hydrocarbon residue of at least 8 C atoms, e.g. condensation product of 1 molecular proportion of para-tertiary-octyl-phenol with 8 molecular proportions of ethylene oxide and 1 molecular proportion of tertiary-dodecyl mercaptan with 8 to 10 molecular proportions of ethylene oxide. The salts preferred are those of an imidazoline of the general formula: <FORM:0793786/III/1> in which R represents a non-aromatic hydrocarbon radical containing 7-18 carbon atoms, R1 and R2 represent hydrogen, a radical as defined for R or the atomic grouping: <FORM:0793786/III/2> (R3 represents an alkyl radical containing 1-17 carbon atoms), provided that R, R1 and R2 together contain not more than 20 carbon atoms, and in which n represents a small whole number.  Specified salts are lactate of imidazolines produced by reacting diethylene triamine with coconut oil fatty acid, myristic lauric and caprylic acids, acetate of imidazoline produced by reacting lauric acid and diethylene triamine, and quaternary ammonium salt obtained from dimethyl sulphate and the imidazoline produced by reacting caprylic acid and diethylene triamine.  Perfumes, dyestuffs, bleaching agents and thickening agents may also be included.ALSO:A cation-active detergent composition for the hair, in solid paste-like or liquid form, comprises in the form of a water-soluble salt, including a water-soluble quaternary ammonium salt, at least one imidazoline containing at least one non-aromatic residue having at least 7 carbon atoms and also containing at least one side-chain containing nitrogen, and at least one acid or salt of acid reaction, such as primary phosphates, aliphatic oxycarboxylic acids such as glycollic acid or citric acid, and especially lactic acid, and, if desired, other compound known to be suitable for use in detergent compositions for the hair, especially a non-ionogenic cleansing agent such as ethylene oxide condensation products of fatty alcohols, fatty amines, and alkyl mercaptans and alkyl-phenols containing an aliphatic hydrocarbon residue of at least 8 C atoms, e.g. condensation products of 1 molecular proportion of para-tertiary-octyl-phenol with 8 molecular proportions of ethylene oxide and 1 molecular proportion of tertiary-dodecyl mercaptan with 8 to 10 molecular proportions of ethylene oxide. The salts preferred are those of an imidazoline of the general formula <FORM:0793786/VI/1> in which R represents a non-aromatic hydrocarbon radical containing 7-18 carbon atoms, R1 and R2 represent hydrogen, a radical as defined for R or the atomic grouping <FORM:0793786/VI/2> (R3 represents an alkyl radical containing 1-17 carbon atoms), provided that R, R1 and R2 together contain not more than 20 carbon atoms, and in which n represents a small whole number.  Specified salts are lactate of imidazolines produced by reacting diethylene triamine with coconut oil fatty acid, myristic, lauric and caprylic acids, acetate of imidazoline produced by reacting lauric acid and diethylene triamine, and quaternary ammonium salt obtained from dimethyl sulphate and the imidazoline produced by reacting caprylic acid and diethylene triamine. Perfumes, dyestuffs, bleaching agents and thickening agents may also be included.