摘要:
Disclosed are alkyl sulfoacetate compositions comprising a sulfonated ester of the formula:RO(CH.sub.2 CHR.sub.1 O).sub.n COCH.sub.2 SO.sub.3 MwhereR represents straight chain alkyl having from about 6 to 20 carbon atoms;R.sub.1 is hydrogen, methyl, or ethyl;n is 0, or an integer of from 1 to 20; andM represents a cation;the composition being substantially free from monochloroacetate salts and monochloroacetic acid. These compositions are prepared by reacting an alkyl chloroester of the formula RO(CH.sub.2 CHR.sub.1 O).sub.n COCH.sub.2 Cl where R, R.sub.1 and n are as defined above with an excess of sodium sulfite in the presence of a sulfitation catalyst at a temperature of at least about 75.degree. C. Also disclosed are oral care compositions comprising these surfactant compositions.
摘要:
The invention encompasses formulated conditioning shampoos, surfactant solutions and emulsifier solutions comprising effective amounts of salts of the following general formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are the same or different and represent straight or branched chain alkyl groups having 10 to 40 carbon atoms, or aryl straight or branched chain alkyl groups having 10 to 40 carbon atoms.The invention also encompasses formulated conditioning shampoos, surfactant solutions, and emulsifier solutions comprising effective amounts of mixtures of a salt of formula I and an acid of formula II ##STR2## wherein R.sub.1 and R.sub.2 are the same or different and represent straight or branched chain alkyl groups having 10 to 40 carbon atoms, or aryl straight or branched chain alkyl groups having 10 to 40 carbon atoms.
摘要:
A phosphorous acid or mixture of phosphorous acids is used as catalyst in the esterification reaction of phenol and carboxylic acids. Water is removed from the reaction zone in an efficient manner. An ester product of high purity and excellent color with minimal by-products is characteristically produced.