Patent GB-496209-A (GB)
Title: Improved aqueous solutions of detergent agents and compositions comprising the same
IPC: C11D7/08
Filed: 1937-04-23
Abstract: Detergents, defined as water-soluble compounds having molecules which contain a fatty radicle and a water-solubilizing group together capable of forming an anion, are mixed to give a solid or pasty composition with salts of sulphamic acid, of iminodisulphonic acid or of a sulphamic acid having the formula <FORM:0496209/III/1> wherein R1 may be hydrogen and R11 or both R1 and R11 may be alkyl having not more than 4 carbon atoms or wherein R1 is hydrogen and R11 is an aryl nucleus which may be substituted only by an alkyl radicle with not more than 4 carbon atoms.  Detergents specified are: sulphonated oils, sulphonated oleic and ricinoleic acids, soaps, sulphuric and other acid esters of higher fatty alcohols and compounds having the formula RCOXR1 SO3H wherein R is a fatty hydrocarbon radicle, X is O or NH and R1 is a hydrocarbon radicle.  Sulphamic acids whose salts may be used are: methylsulphamic acid, diethylsulphamic acid, phenylsulphamic acid and o- and p-tolylsulphamic acid.  In examples: (1) ammonium iminodisulphonate is mixed with lauroyl-3-sulpho-4-methoxyaniline; (2) a solution of soap flakes is prevented from jelling on cooling by adding ammonium sulphamate.ALSO:Detergents, defined as water soluble compounds having molecules which contain a fatty radicle and a water solubilizing group together capable of forming an anion are mixed to give a solid or pasty composition with salts of sulphamic acid, of iminodisulphonic acid or of a sulphamic acid having the formula <FORM:0496209/IV/1> wherein R1 may be hydrogen and R11 or both R1 and R11 may be alkyl having not more than 4 carbon atoms or wherein R1 is hydrogen and R11 is an aryl nucleus which may be substituted only by an alkyl radicle with not more than 4 carbon atoms.  Detergents specified are: sulphonated oils, sulphonated oleic and ricinoleic acids, soaps, sulphuric and other acid esters of higher fatty alcohols and compounds having the formula RCOXR1SO3H wherein R is a fatty hydrocarbon radicle, X is O or NH and R1 is a hydrocarbon radicle. Sulphamic acids whose ammonium, sodium or potassium salts may be used are: methylsulphamic acid, diethylsulphamic acid, phenylsulphamic acid and o- and p-tolylsulphamic acid.  In examples: (1) ammonium iminodisulphonate is mixed with lauroyl-3-sulpho-4-methoxyaniline or the latter is brought into solution in water by the addition of the ammonium iminodisulphonate: (2) the sodium salt of the acid sulphuric ester of olein alcohol is brought into solution by means of ammonium sulphamate: (3) a solution of soap flakes is prevented from forming a jelly on cooling by adding ammonium sulphamate: (4) sodium sulphamate is used in a rinsing bath in a process for scouring raw loose wool: (5) blankets are washed first with a solution of soap, sodium sesquicarbonate and sodium sulphamate and secondly with a solution of soap and sodium sulphamate.  The preparations are also used in processing dyed and printed goods, e.g. in the development and after-treatment of vat and azo dyes and in soaping printed goods to remove thickneners and to improve the fastness of the colours.