Claims
- 1. A process for treating a surface with sustainable foam by means of a foamable surfactant wherein the foamable surfactant comprises a substantially pure substituted imidazoline-derived amphoacetate containing as a component thereof a compound of the formula: ##STR2## wherein R represents an aliphatic radical containing from about 5 to about 19 carbon atoms per molecule, X is OH or NH.sub.2, n is an integer of from 2 to 4 inclusive and M is a metal, said composition containing less than about 3.5% unalkylated amide and less than about 4.5% glycolic acid, wherein the amphoacetate is produced by a process in which the imidazoline ring is opened prior to alkylation.
- 2. A process as recited in claim 1 wherein the composition contains less than about 2.0% unalkylated amide.
- 3. A process as recited in claim 1 wherein the composition contains less than about 3.5% glycolic acid.
- 4. A composition as recited in claim 1 wherein the composition additionally contains less than about 27% alkali metal halide salt.
- 5. A process as recited in claim 1 wherein X is OH.
- 6. A process as recited in claim 1 wherein R is derived from a member selected from the group consisting of coconut oil fatty acids, palm kernel oil fatty acids, capric, caproic, caprylic, hexadecadienoic, lauric, linoleic, linolenic, margaric, myristic, myristoleic, oleic, palmitic, palmitoleic, and stearic acids and mixtures thereof.
- 7. A process as recited in claim 1 wherein M is an alkali metal.
- 8. A process as recited in claim 1 wherein R is derived from coconut oil fatty acids, n is 2, X is OH and M is sodium.
RELATED APPLICATIONS
The present application is a divisional of application U.S. Ser. No. 08/446,393 that was filed on May 22, 1995 U.S. Pat. No. 5,614,473.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4269730 |
Wechsler et al. |
May 1981 |
|
4705893 |
Sotoya et al. |
Nov 1987 |
|
Divisions (1)
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Number |
Date |
Country |
Parent |
446393 |
May 1995 |
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