Patent GB-401118-A (GB)
Title: Improved manufacture of high-molecular sulphur compounds
Filed: 1932-11-25
Abstract: Products which are stated to have emulsifying properties are obtained by treating esters which are derived from oxygen containing mineral acids and aliphatic or hydroaromatic hydroxy compounds containing at least six carbon atoms with sulphides, hydrosulphides or mono- or polyhydric mercaptans or their metal compounds.  The esters may contain groups such as ether, carboxy, sulpho, amino or hydroxy groups, which may also be present in the mercaptans; aliphatic, hydroaromatic, aliphatic-aromatic, aromatic and heterocyclic mercaptans may be employed.  In examples: (1) sodium dodecanol sulphate is treated with hydrogen sulphide in the presence of aqueous caustic soda, whereby dodecyl mercaptan is obtained; the dodecanol phosphate may similarly be used; (2) dodecanol sulphate is treated with p-thiocresol in the presence of caustic soda and alcohol to obtain p-cresoldodecylsulphide; (3) sodium dodecylsulphate is treated with mercaptoacetic acid.  The samples relate to products obtained by the interaction of the following pairs of components: the phosphoric or sulphuric ester of octodecanol-1: 12-diol and sodium polysulphide, sulphonated 12-hydroxystearic acid and sodium sulphide or polysulphide; disodium dodecylphosphate and phenylmercaptan; dodecylsulphate and sodium benzylmercaptan, disodium naphthenylphosphate and sodium disulphide, and sodium dodecyl sulphate and 2 - mercapto - benzthiazole.  Ethyl-, dodecyl-, cyclohexyl-, 2-naphthyl-and quinolyl-mercaptans are mentioned as starting materials and also resin alcohols, paraffin alcohols, isooctyl alcohol, myristic alcohol and secondary and tertiary alcohols.  Reference has been directed by the Comptroller to Specification 374,380 [Group IV.].ALSO:Esters of oxygen containing mineral acids with aliphatic or hydroaromatic hydroxy compounds containing at least six carbon atoms are treated with sulphides, hydrosulphides or mono-or poly-hydric mercaptans or their metal compounds.  The esters may contain groups such as ether, carboxy, sulpho, amino or hydroxy groups, which may also be present in the mercaptans; aliphatic, hydroaromatic, aliphatic-aromatic, aromatic and heterocyclic mercaptans may be employed.  In examples: (1) sodium dodecanol sulphate is treated with hydrogen sulphide in the presence of aqueous caustic soda, whereby dodecyl mercaptan is obtained; the dodecanol phosphate may similarly be used: (2) dodecanol sulphate is treated with p-thiocresol in the presence of caustic soda and alcohol to obtain p-cresoldodecylsulphide: (3) sodium dodecylsulphate is treated with mercaptoacetic acid.  The samples relate to products obtained from the following pairs of components: the phosphoric or sulphuric ester of octodecanol-1 : 12-diol and sodium polysulphide, sulphonated 12-hydroxystearic acid and sodium sulphide or polysulphide; disodium dodecylphosphate and phenylmercaptan, dodecylsulphate and sodium benzylmercaptan, disodium naphthenylphosphate and sodium disulphide, and sodium dodecyl sulphate and 2-mercaptobenzthiazole.  Ethyl-, dodecyl-, cyclohexyl-, 2-naphthyl- and quinolyl-mercaptans are mentioned as starting materials and also resin alcohols, paraffin alcohols, iso-octyl alcohol, myristic alcohol and secondary and tertiary alcohols.  The Specification as open to inspection under Sect. 91 comprises also the treatment of the aliphatic or hydroaromatic esters with "sulphur compounds."  This subject-matter does not appear in the Specification as accepted.  Reference has been directed by the Comptroller to Specification 374,380.