GB1007343A - Amine oxide detergents - Google Patents

Abstract

A detergent composition which may be in the form of a liquid, flakes, granules, toilet bars or a scouring cleanser comprises a diamine oxide of the formula:- <FORM:1007343/C4-C5/1> wherein R represents C10- 18 alkyl, R1, R2 and R3 are each a methyl, ethyl or isopropyl radical and n is 2 or 3, or a hydrated form thereof, in admixture with Na, K, ammonium and alkylol-ammonium salts of C10- 20 fatty acids, alkyl glyceryl ether sulphonates, alkyl sulphates, alkyl monoglyceride sulphates and sulphonates, alkyl polyethenoxy ether sulphates, acyl sarcosinates, acyl esters of isethionates, acyl N-methyl taurides, lower or higher alkylbenzene sulphonates, alkyl phenol polyethenoxy sulphonates, polyethyleneoxide condensates of alkyl phenols, alkali metal, ammonium or substituted ammonium carbonates, borates, phosphates, sulphates, polyphosphates, pyrophosphates, bicarbonates and silicates, sodium and potassium N - (2 - hydroxyethyl) - ethylenediaminetriacetates and nitrilotriacetates, sodium, potassium and triethylammonium N- (2 - hydroxyethyl) - nitrilodiacetates, sodium phytate, tetrasodiuHA02B010 00026olammonium ethylenediaminetetraacetates, silica flour cornstarch, tallow fatty acid and/or carboxymethyl hydroxyethyl cellulose. Specification 747,841 is referred to.ALSO:The invention comprises diamine oxides of the formula <FORM:1007343/C2/1> wherein R represents C10- 18 alkyl, R1, R2 and R3 are each a methyl, ethyl or propyl radical and n is 2 or 3. The above compounds are prepared by oxidizing the corresponding amines, e.g. using hydrogen peroxide, and may be obtained in their hydrated forms. N,N - Dimethyl - N - lauroyl - ethylenediamine and N,N - diethyl - N - lauroyl - ethylenediamine are prepared by reacting lauroyl chloride with N,N-dimethyl-ethylenediamine and N,N - diethyl - ethylenediamine respectively. Octadecyl - ethylenediamine is prepared by reacting ethylenediamine with octadecyl bromide. N,N - Dimethyl - N1 - dodecyl - ethylenediamine and N,N - diethyl - N1 - dodecyl - ethylenediamine are prepared by lithium aluminium hydride reduction of N,N-dimethyl-N1-lauroylethylenediamine and N,N-diethyl-N1-lauroylethylenediamine respectively. N,N1,N1 - Trimethyl - N - dodecyl - ethylenediamine and N,N1,N1 - trimethyl - N - octadecyl - ethylene - diamine are prepared by reacting formic acid and formaldehyde with N,N - dimethyl - N1 - dodecyl - ethylenediamine and octadecyl - ethylenediamine respectively. N,N1,N1 - Triethyl - N - dodecyl - ethylenediamine is prepared by reacting formic acid and acetaldehyde with N,N - diethyl - N1 - dodecylethylenediamine. Specification 747,841 is referred to.