Patent GB-418664-A (GB)
Title: Improvements in hair washes
Filed: 1933-02-20
Abstract: Hair washes comprise sulphonic acid derivatives having not less than 10 carbon atoms produced by treatment of aliphatic monohydric alcohols, such as are produced by reduction of fatty acids, with sulphonating agents, followed by treatment with a sulphite, compounded with inorganic salts acting as buffer agents and with soap.  Buffer agents specified are sodium bicarbonate, sodium phosphate and borax.  In an example a sulphonic acid derivative is prepared by treating with concentrated sulphuric acid, alcohol produced by reduction of lauric acid, separating the resulting sulphuric acid ester and heating a solution thereof with sodium sulphite.  The Specification as open to inspection under Sect. 91 refers to the use in hair washes of compounds of the general formula R--SO3--Me where R is an organic remainder of the aliphatic, aromatic, hydroaromatic or heterocyclic series and Me is a metal, ammonia or a saponifiable nitrogenous remainder such as the remainder from primary, secondary or tertiary amines or cyclic amines such as pyridine.  Alternatively there may be used compounds of the general formula R--X--SO3--Me where R and Me have the same significance and X is oxygen, sulphur or the substituted or non-substituted imino group. Examples of compounds specified are sulphamides, the sulphuric acid esters of higher aliphatic monohydric alcohols and of glycols, and sulphonation products of hydrocarbons, e.g. octadecane and cyclic compounds such as cyclohexanol or cyclohexanone.  Wetting agents, e.g. sodium sulphate or perborate, bleaching agents, sodium lysalbate or salts of sebacic acid may also be added to the hair wash.  This subject-matter does not appear in the Specification as accepted.ALSO:Sulphonic acid derivatives having not less than 10 carbon atoms produced by treatment of aliphatic monohydric alcohols, such as are produced by reduction of fatty acids, with sulphonating agents, followed by treatment with a sulphite, are used in hair washes.  In an example a sulphonic acid derivative is prepared by treating with concentrated sulphuric acid alcohol produced by reduction of lauric acid, separating the resulting sulphuric acid ester and heating a solution thereof with sodium sulphite to convert the sulphuric ester into a sulphonic acid.ALSO:Washes for dogs, sheep &c. comprise sulphonic acid derivatives having not less than 10 carbon atoms produced by treatment of aliphatic monohydric alcohols, such as are produced by reduction of fatty acids, with sulphonating agents, followed by treatment with a sulphite, compounded with inorganic salts acting as buffer agents and with soap.  Buffer agents specified are sodium bicarbonate, sodium phosphate and borax.  In an example a sulphonic acid derivative is prepared by treating with concentrated sulphuric acid alcohol produced by reduction of lauric acid, separating the resulting sulphuric acid ester and heating a solution thereof with sodium sulphite.  The Specification as open to inspection under Sect. 91 refers to the use in hair washes of compounds of the general formula R-SO3-Me where R is an organic remainder of the aliphatic, aromatic, hydroaromatic or heterocyclic series and Me is a metal, ammonia or a saponifiable nitrogenous remainder such as the remainder from primary, secondary or tertiary amines or cyclic amines such as pyridine.  Alternatively there may be used compounds of the general formula R-X-SO3-Me where R and Me have the same significance and X is oxygen, sulphur or the substituted or non-substituted imino group.  Examples of compounds specified are sulphamides, the sulphuric acid esters of certain higher aliphatic monohydric alcohols and of glycols, and sulphonation products of hydrocarbons, e.g. octadecane and cyclic compounds such as cyclohexanol or cyclohexanone.  Wetting agents, e.g. sodium sulphate or perborate, bleaching agents, sodium lysalbate or salts of sebacic acid may also be added to the hair wash.  This subject-matter does not appear in the Specification as accepted.