Acyloxyalkanesulfonate paste composition and method for preparing same
AssigneeMazer Chemicals, Inc.
InventorsEugene A. Weipert, David B. Markobrad
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Abstract
Described are acyloxyalkanesulfonate salt compositions of betwee about 30 and about 80 weight percent of the sulfonate salt, e.g., sodium cocoyl isethionate, between about 2 and about 8 weight percent of a water soluble ethoxylated monohydric alcohol, and the balance water. In a further embodiment, the composition contains small amounts of alkali metal salts of water-soluble inorganic and organic acids.
Claims24
A paste composition consisting essentially of (a) between about 30 and about 80 weight percent of an acyloxy alkane sulfonate salt represented by the graphic formula:
- R--C(O)--O(CH.sub.2).sub.n SO.sub.3.sup.- M.sup.+
- where R is an aliphatic radical having from 6 to 22 carbon atoms, n is an integer of from 2 to 4 inclusive and M is an alkali metal cation, (b) between about 2 and about 8 weight percent of water-soluble ethoxylated monohydric alkanol represented by the graphic formula,
- R'--(CH.sub.2 CH.sub.2 O).sub.m OH
- wherein R' is an alkyl radical having from about 8 to about 18 carbon atoms and m is a number of from about 4 to 50, and (c) the balance water.
A paste composition consisting essentially of (a) between about 30 and about 80 weight percent sodium cocoyl isethionate, (b) between about 2 and about 8 weight percent of water-soluble ethoxylated monohydric alkanol represented by the graphic formula,
- R'--(CH.sub.2 CH.sub.2 O).sub.m OH
- wherein R' is an alkyl radical having from about 8 to about 18 carbon atoms and m is a number of from 4 to 50 and (c) the balance water.
A method which comprises heating an admixture of an acyloxy alkane sulfonate salt represented by the graphic formula:
- R--C(O)--O(CH.sub.2).sub.n SO.sub.3.sup.- M.sup.+
- wherein R is an aliphatic radical having from 6 to 22 carbon atoms, n is an integer of from 2 to 4 inclusive and M is an alkali metal cation, (b) water-soluble ethoxylated monohydric alkanol represented by the graphic formula:
- R'--(CH.sub.2 CH.sub.2 O).sub.m OH
- wherein R' is an alkyl radical having from about 8 to about 18 carbon atoms and m is a number of from about 4 to 50, and (c) water at temperatures of from about 60.degree. C. to about 95.degree. C. for a time sufficient to prepare a paste of the sulfonate salt, the paste containing between about 30 and about 80 weight percent of the sulfonate salt, between about 2 and about 8 weight percent of the ethoxylated alkanol and the balance water.
Dependencies are inferred from the claim text.