Claims
- 1. A process for in situ preparation of synthetic detergent compositions suitable for direct utilization in the processing of syndet bars having improved soap-like properties which comprises blending, at elevated temperatures and at a controlled rate, about a stoichiometric amount of a C.sub.8 -C.sub.16 alkyl mono-ester of butenedioic acid with an alkali metal sulfite in an aqueous dispersion of a water-soluble anionic surfactant in a molten waxy extender, the water concentration being between about 5 and about 12 percent, by weight, based upon the total weight of the reaction mass, said mass being kept fluid throughout the reaction and maintained at a temperature below about 85.degree. C.; and, likewise based upon the total weight of the reaction mass, the surfactant being present in the concentration of about 4 to about 20 percent, and the waxy extender in the concentration of about 18 to about 45 percent, the anionic surfactant being selected from water-soluble alkali metal salts of C.sub.12 -C.sub.14 alkaryl sulfonate, C.sub.14 -C.sub.16 olefin sulfonate, C.sub.10 -C.sub.16 acyl isethionate, C.sub.10 -C.sub.16 alkyl sulfoacetate, C.sub.12 -C.sub.16 alkyl sulfate, C.sub.12 -C.sub.14 alkane sulfonate, and mixtures thereof; and recovering resulting mono-alkyl sulfocsuccinate-containing syndet composition.
- 2. The process of claim 1 wherein the waxy extender is selected from a C.sub.12 -C.sub.22 fatty acid or alcohol, a hydrocarbon wax, and a fatty acid ester of a polyhydric alcohol, and mixtures thereof.
- 3. The process of claim 1 wherein the reactants are blended at the rate required to provide a temperature of about 80.degree. C..+-.5.degree. C. and the reaction mass maintained at this temperature during a digestion period of about 30 to 90 minutes.
- 4. The process of claim 1 wherein either of the reactants is first blended in the aqueous dispersion of the surfactant in molten waxy extender and the remaining reactant subsequently added at said controlled rate.
- 5. The process of claim 1 wherein the components in the reaction mass are present in the following concentrations, given in percent by weight, based upon the weight of the reaction mass:
- ______________________________________butenedioic acid ester 18-35alkali metal sulfite 6-16surfactant 4-20waxy extender 18-45water 5-12other extender 0-20______________________________________
- 6. The process of claim 5 wherein the components in the reation mass are present in the following concentrations, in percent by weight, based upon the total weight of the reaction mass:
- ______________________________________butenedioic acid ester 20-33alkali metal sulfite 8-14surfactant 7-12waxy extender 23-40water 7-10other extender 5-15______________________________________
- 7. The process of claim 5 wherein the finished mass, following dispersion, contains about 24 to about 51 percent by weight, based upon the total weight of the finished mass, of C.sub.8 -C.sub.16 alkyl sulfosuccinate, and about 5 to about 10 percent water.
- 8. The process of claim 7 wherein the fluid finished mass is solidified by cooling and formed into flakes which are converted to syndet bars by conventional soap processing.
- 9. The process of claim 8 wherein the reactants are lauryl maleate and sodium sulfite.
- 10. The process of claim 9 wherein the surfactant is C.sub.12 -C.sub.14 alkane sulfonate.
- 11. The process of claim 9 wherein the waxy extender is selected from hydrogenated tallow fatty acid, paraffin, and cetyl alcohol, and mixtures of these.
- 12. The process of claim 11 wherein the surfactant is C.sub.14 -C.sub.16 .alpha.-olefin sulfonate.
- 13. The process of claim 12 wherein the waxy extender is cetyl alcohol.
BACKGROUND OF THE INVENTION
This is a continuation-in-part of U.S. application Ser. No. 122,538 filed Feb. 19, 1980 and now abandoned.
US Referenced Citations (20)
Foreign Referenced Citations (1)
Number |
Date |
Country |
1370284 |
Oct 1974 |
GBX |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
122538 |
Feb 1980 |
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