Surface-active hydroxysulfonates
AssigneeHenkel Kommanditgesellschaft auf Aktien
InventorsBernd Fabry, Robert Piorr, Astrid Schumacher
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Abstract
Aqueous solutions of surface-active hydroxysulfonates are obtained by reaction of unsaturated fatty alkenyl or fatty alkenyl polyalkoxyl esters, for example of oleyl acetate or oleyl polyethoxyl acetate, with sulfur trioxide, introduction of the reaction product into aqueous alkali metal, alkaline-earth or ammonium hydroxide and heating of the solutions until the ester and sultone groups present have been hydrolyzed.
Claims18
A process for the production of an aqueous solution of an alkali metal alkaline-earth or ammonium salt of a surface-active hydroxysulfonate, comprising reacting with gaseous sulfur trioxide at a temperature of 10.degree. to about 80.degree. C. an unsaturated fatty alkenyl or fatty alkenyl polyalkoxyl ester corresponding to formula (I) ##STR3## in which R.sup.1 is a linear C.sub.16 -C.sub.22 alkenyl group or a fatty hydrocarbon group consisting essentially of an oleyl, palmitoleyl, linoleyl, gadoleyl or erucyl group, n is a number from 2 to 4, x=0 or is a number up to 30, and R.sup.2 --CO is a C.sub.1 -C.sub.4 acyl group;
- introducing the reaction product into an aqueous solution of about 1 to about 2.5 mol of alkali metal, alkaline-earth or ammonium hydroxide per mol of added SO.sub.3 ;
- and heating the solution until the ester and sultone groups present have been hydrolyzed.
An aqueous solution of an alkali metal, alkaline-earth or ammonium salt of a surface-active hydroxysulfonate prepared by the process comprising reacting with gaseous sulfur trioxide at a temperature of 10.degree. to about 80.degree. C. an unsaturaed fatty alkenyl or fatty alkenyl polyalkoxyl ester corresponding to formula (I) ##STR5## in which R.sup.1 is a linear C.sub.16 -C.sub.22 alkenyl group or a fatty hydrocarbon group consisting essentially of an oleyl, palmitoleyl, linoleyl, gadoleyl or erucyl group, n is a number from 2 to 4, x=0 or is a number up to 30, and R.sup.2 --CO is a C.sub.1 -C.sub.4 acyl group;
- introducing the reaction product into an aqueous solution of about 1 to about 2.5 mol of alkali metal, alkaline-earth or ammonium hydroxide per mol of added SO.sub.3 ;
- and heating the solution until the ester and sultone groups present have been hydrolyzed.
The process of preparing a cleaning composition comprising adding thereto an alkali metal, alkaline-earth or ammonium salt of a surface-active hydroxysulfonate prepared by the process comprising reacting with gaseous sulfur trioxide at a temperature of 10.degree. to about 80.degree. C. an unsaturated fatty alkenyl or fatty alkenyl polyalkoxyl ester corresponding to formula (I) ##STR7## in which R.sup.1 is a linear C.sub.16 -C.sub.22 alkenyl group or a fatty hydrocarbon group consisting essentially of an oleyl, palmitoleyl, linoleyl, gadoleyl or erucyl group, n is a number from 2 to 4, x=0 or is a number up to 30, and R.sup.2 --CO is a C.sub.1 -C.sub.4 acyl group;
- introducing the reaction product into an aqueous solution of about 1 to about 2.5 mol of alkali metal, alkaline-earth or ammonium hydroxide per mol of added SO.sub.3 ;
- and heating the solution until the ester and sultone groups present have been hydrolyzed.
Dependencies are inferred from the claim text.