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US4154955A
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Sulfosuccinate ester-amides
Assignee: Witco Corp
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Filing: 1977-10-25
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Granted: 1979-05-15
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Expires: 1997-10-25
Abstract
Abstract Sulfosuccinate ester-amides in which one carboxyl group of the sulfosuccinate is amidified with an aliphatic non-tertiary amine, for instance, a C 8 -C 12 aliphatic amine such as octyl or dodecyl amine, and in which the other carboxyl group of the sulfosuccinate is esterified by reaction with an α-monoepoxide such as propylene oxide, or higher α-monoepoxides, and method of preparation of such sulfosuccinate ester-amides. The said sulfosuccinate ester-amides have utility as surfactants, such as detergents and emulsifiers.
Inventors
- 👤 Kermit D. Longley
- 👤 Anastasios J. Karalis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:04
CPC Classifications
C; C07; C07C; C07C309/00; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03; Y10S516/04
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
113 words
A sulfosuccinate surfactant according to the formula: ##STR14## Where R--NX-- is the radical of a C 2 -C 20 aliphatic non-tertiary monoamine in which X is hydrogen or lower alkyl; and wherein R 1 is selected from the class consisting of alkyl containing from 1 to 18 carbon atoms and phenyl with the proviso that the sum of the number of carbons in R--NX and ##STR15## is from 7 to 35 and that there is a difference in the number of carbon atoms in R--NX-- and ##STR16## which difference is at least 2 and M is a cation selected from the group of alkali metals, ammonium, alkaline earth metals and water soluble amines.
Claim 2
Dependent Claim
113 words
A sulfosuccinate surfactant according to the formula: ##STR14## Where R--NX-- is the radical of a C 2 -C 20 aliphatic non-tertiary monoamine in which X is hydrogen or lower alkyl; and wherein R 1 is selected from the class consisting of alkyl containing from 1 to 18 carbon atoms and phenyl with the proviso that the sum of the number of carbons in R--NX and ##STR15## is from 7 to 35 and that there is a difference in the number of carbon atoms in R--NX-- and ##STR16## which difference is at least 2 and M is a cation selected from the group of alkali metals, ammonium, alkaline earth metals and water soluble amines.
Claim 3
Dependent Claim
25 words
A surfactant according to claim 1, in which the difference in the number of carbon atoms between R--NX-- and ##STR17## is from 4 to 14.
Claim 4
Dependent Claim
26 words
A surfactant according to claim 1, in which R is alkyl containing from 8 to 15 carbon atoms, X is hydrogen, and R 1 is methyl.
Claim 5
Dependent Claim
14 words
A surfactant according to claim 3, in which R is a straight chain alkyl.
Claim 6
Dependent Claim
24 words
A surfactant according to claim 1, in which R is alkyl having from 3 to 18 carbon atoms and is a branch chain alkyl.
Claim 7
Dependent Claim
27 words
A surfactant according to claim 1, in which R is C 2 -C 5 alkyl and R 1 is alkyl containing from 1 to 18 carbon atoms.
References Cited (Backward Citations)
US4056558A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-05-14 | 1982-11-13 | 1983-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-14 | 1986-11-13 | 1987-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-14 | 1990-11-13 | 1991-05-15 | $7700.00 | Window Closed / Lapsed |