Patent GB-400986-A (GB)
Title: Improvements in or relating to the manufacture and use of washing, cleansing, emulsifying, dispersing, wetting-out or like agents
Filed: 1932-05-04
Abstract: Emulsifying, dispersing, and cleansing agents are obtained by esterifying unsaturated aliphatic alcohols having at least 8 but not more than 20 carbon atoms, with sulphuric acid and then submitting the products to halogenation.  The esterification and halogenation may also be effected in the reverse sequence, and salts of sulphuric esters of unsaturated alcohols having at least 8 but not more than 20 carbon atoms may be treated with hypochlorous acid.  The products may be used in the treatment of metals, paper, leather, textiles, feathers, silk and artificial silk, particularly in treatment baths which contain solutions or dispersions of fatty substances, mineral oils, hydrocarbons, substituted or hydrogenated hydrocarbons, alcohols, hydrogenated phenols, ketones, chlorhydrins or soaps.  In examples: (1) olein alcohol is treated with chlorsulphonic acid in the presence of carbontetrachloride, and towards the end of the reaction gaseous hydrochloric acid is introduced; after neutralization, the product may be used to disperse oleine in water to obtain a spinning grease: (2) olein alcohol is treated with chlorine in the presence of carbon tetrachloride and then sulphonated and neutralized: (3) wool is washed in a liquor containing soda and the product obtained by the addition of hypochlorous acid to oleic sulphuric ester; soaps and solvents may advantageously be present. Mercerizing, bleaching and the pasting of dyestuffs are also mentioned.  Specification 344,829 is referred to.  The Specification as open to inspection under Sect. 91 comprises also the production and use of sulphuric esters of the higher alcohols which are substituted by oxy, nitro, amino, ether or ester groups.  Bromine substituted alcohols, trioxyoctodecane (obtained by reduction of dioxystearic acid), and 11-amino-octadecanol are mentioned as starting materials.  This subject-matter does not appear in the Specification as accepted.ALSO:Washing, wetting, emulsifying, dispersing, pasting, and like agents are obtained by esterifying unsaturated aliphatic alcohols having at least 8 but not more than 20 carbon atoms, with sulphuric acid and then submitting the products to halogenation. The esterification and halogenation may also be effected in the reverse sequence, and salts of sulphuric esters of unsaturated alcohols having at least 8 but not more than 20 carbon atoms may be treated with hypochlorous acid.  The products may be used in the treatment of paper, leather, textiles, feathers, silk and artificial silk, particularly in treatment baths which contain solutions or dispersions of fatty substances, mineral oils, hydrocarbons, substituted or hydrogenated hydrocarbons, alcohols, hydrogenated phenols, ketones, chlorhydrins or soaps.  In examples: (1) olein alcohol is treated with chlorsulphonic acid in the presence of carbontetrachloride, and towards the end of the reaction, gaseous hydrochloric acid is introduced; after neutralization, the product may be used to disperse oleine in water to obtain a spinning grease: (2) olein alcohol is treated with chlorine in the presence of carbon tetrachloride and then sulphonated and neutralized; the product is useful in dyeing; (3) wool is washed in a liquor containing soda and the product obtained by the addition of hypochlorous acid to oleic sulphuric ester; soaps and solvents may advantageously be present. Mercerizing, bleaching, and the pasting of dyestuffs are also mentioned.  Specification 344,829 is referred to.  The Specification as open to inspection under Sect. 91 comprises also the production and use of sulphuric esters of the higher alcohols which are substituted by oxy, nitro, amino, ether or ester groups.  Bromine substituted alcohols, trioxyoctodecane (obtained by reduction of dioxystearic acid), and 11-amino-octadecanol are mentioned as starting materials.  This subject-matter does not appear in the Specification as accepted.