Soap bar compositions comprising alpha sulfonated fatty acid alkyl esters and long chain fatty acids
AssigneeStepan Company
InventorsCarlos E. Ospinal, Jeffrey S. Nelson, Catherine J. Sporer, Marshall J. Nepras
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Abstract
Disclosed are compositions suitable for formation into mild personal cleansing or laundry detergent bars, as well as other uses. The compositions generally comprise: (a) from about 30% to about 99% by weight of a mixture of anionic surfactants comprising: i) an alpha sulfonated alkyl ester; and ii) a sulfonated fatty acid; (a) from about 0.5% to about 50% by weight of a fatty acid; and (b) from about 0.1% to about 50% by weight water; wherein the ratio of i) to ii) is from about 10:1 to about 0.5:1, and wherein the ratio of (a) to (b) is about 1:1 to about 11:1.
Claims2
A composition suitable for formation into mild personal cleansing or laundry detergent bars comprising:
- (a) from about 50% to about 90% by weight of a mixture of an anionic surfactants comprising
- i) an alpha sulfonated alkyl ester of the formula ##STR17## wherein R.sub.1 is a C.sub.10 -C.sub.18 hydrocarbyl, preferably an alkyl, or combination thereof, R.sub.2 is a straight or branched chain C.sub.1 -C.sub.6 hydrocarbyl, preferably an alkyl, or combination thereof, and M is hydrogen or sodium, potassium, calcium, magnesium, monoethanolamine, diethanolamine, triethanolamine, or a mixture thereof;
- and
- ii) a sulfonated fatty acid of the formula ##STR18## wherein R.sub.1 is a C.sub.10 -C.sub.18 hydrocarbyl, preferably an alkyl, or combination thereof, and M is hydrogen and/or sodium, potassium, calcium, magnesium, monoethanolamine, diethanolamine, triethanolamine, or a mixture thereof;
- (b) from about 10% to about 50% by weight of a fatty acid of the formula ##STR19## wherein R.sub.1 is a C.sub.16 -C.sub.18 hydrocarbyl, preferably an alkyl, or combination thereof, and M is hydrogen and/or sodium, potassium, calcium, magnesium, monoethanolamine, diethanolamine, triethanolamine, or a mixture thereof;
- and
- (c) from about 0.1% to about 20% by weight water;
- wherein the ratio of i) to ii) is from about 8:1 to about 1:2;
- and wherein the ratio of (a) to (b) is about 9:1 to about 1:1.
A composition suitable for formation into mild personal cleansing or laundry detergent bars comprising:
- (a) from about 60% to about 80% by weight of a mixture of an anionic surfactants comprising
- i) an alpha sulfonated alkyl ester of the formula ##STR20## wherein R.sub.1 is at least 80% C.sub.12 -C.sub.15 alkyl, and about 0-20% of a mixture of C.sub.8 -C.sub.10 and C.sub.16 -C.sub.18 alkyl, wherein R.sub.2 is methyl, and M is hydrogen or sodium, potassium, calcium, magnesium, monoethanolamine, diethanolamine, triethanolamine, or a mixture thereof;
- and
- ii) a sulfonated fatty acid of the formula ##STR21## wherein R.sub.1 is about 80% C.sub.12 -C.sub.15 alkyl, and about 20% of a mixture of C.sub.8 -C.sub.10 and C.sub.16 -C.sub.18 alkyl;
- and wherein M is hydrogen and/or sodium, potassium, calcium, magnesium, monoethanolamine, diethanolamine, triethanolamine, or a mixture thereof;
- (b) from about 20% to about 30% by weight of a fatty acid of the formula ##STR22## wherein R.sub.1 is a C.sub.16 -C.sub.18 hydrocarbyl, preferably an alkyl, or combination thereof, and M is hydrogen and/or sodium, potassium, calcium, magnesium, monoethanolamine, diethanolamine, triethanolamine, or a mixture thereof;
- and
- (c) from about 0.1% to about 15% by weight water;
- wherein the ratio of i) to ii) is from about 7:1 to about 1:2;
- and wherein the ratio of (a) to (b) is about 4:1 to about 3:2.
Dependencies are inferred from the claim text.