Patent GB-413457-A (GB)
Title: Manufacture of emulsifying, cleansing, wetting or softening agents
IPC: D06M13/342
Filed: 1933-04-20
Abstract: Aliphatic sulphonamides, which are stated to be useful as emulsifying agents, are prepared by condensing aliphatic sulphochlorides, the carbon chain of which may contain substituents or be interrupted by an atom or group of atoms such as O, S, SS, COO, CO NH or SO2 NH, with ammonia or an amine which contains one or two amino groups and may contain hydrophile groups, but must be free from hydroxy groups linked to an aliphatic radicle.  Hydrophile groups are NH2, OH, SO2NH2, OSO4H, SO3H and COOH groups.  In examples: (1) dodecylsulpho-chloride is condensed with ammonia or ethylenediamine; with ammonia, products are obtained which may be used in pastes, creams and ointments; (2) dodecylsulphochloride is condensed with methyltaurine and glycocoll; (3) tetradecylsulphochloride is condensed with sulphanilic acid or other aromatic amino sulphonic acids, e.g. of the naphthalene series.  An aliphatic sulphochloride having the formula C17H35CO.NCH3C2H4SO2Ce is mentioned as an example of a starting material having an interrupted carbon chain.  The Specification as open to inspection under Sect. 91 comprises also the condensation of the aliphatic sulphochlorides with polyamines and with hydrazine to give similar products.  In an additional example, tetradecylsulphochloride is condensed with leucine, and stearyl sulphochloride with alanine or albumen decomposition products.  The formates of the products are mentioned.  This subject-matter does not appear in the Specification as accepted.ALSO:Aliphatic sulphonamides which are stated to be useful as wetting, emulsifying, cleansing and softening agents, e.g., in the manufacture and treatment of fabrics, leather and paper are prepared by condensing aliphatic sulphochlorides, the carbon chain of which may contain substituents or be interrupted by an atom or group of atoms such as O, S, SS, COO, CO NH or SO2 NH, with ammonia or an amine which contains one or two amino groups and may contain hydrophile groups but must be free from hydroxy groups linked to an aliphatic radicle.  Hydrophile groups are NH2, OH, SO2NH2, OSO4H, SO3H and COOH groups.  The formation of the sulphonamides as a step in the production of dyestuffs, cf. Specification 393,966, or of condensation products containing a chain of at least six ethenoxy groups, cf.  Specification 380,851, is disclaimed.  In examples: (1) dodecylsulpho-chloride is condensed with ammonia or ethylenediamine; with ammonia, products are obtained which may be used in pastes, creams and ointments; (2) dodecylsulphochloride is condensed in ether with methyltaurine and glycocoll; (3) tetradecylsulphochloride is condensed with sulphanilic acid or other aromatic amino sulphonic acids, e.g. of the naphthalene series.  An aliphatic sulphochloride having the formula C17H35CO.NCH3.C2H4SO2Cl is mentioned as an example of a starting material having an interrupted carbon chain.  The Specification as open to inspection under Sect. 91 comprises also the condensation of the aliphatic sulphochlorides with polyamines and with hydrazine.  In an additional example, tetradecylsulphochloride is condensed with leucine, and stearyl sulphochloride with alanine or albumen decomposition products. The formates of the products are mentioned. This subject-matter does not appear in the Specification as accepted.