US4310683A
Expired / Lapsed
US
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Sulfosuccinate diesters
Assignee: Witco Corp
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Filing: 1979-06-15
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Granted: 1982-01-12
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Expires: 1999-06-15
Abstract
Abstract Sulfosuccinate diesters in which one carboxyl group of the sulfosuccinate is esterified with an ethoxylated or propoxylated non-tertiary monoamine, for instance, a C 8 -C 18 fatty amine, ethoxylated with 3 or 4 moles of ethylene oxide, to form a hydroxyl-containing tertiary amine, and in which the other carboxyl group of the sulfosuccinate is esterified with an α-monoepoxide such as propylene oxide, or higher α-monoepoxides, and method of preparation of such sulfosuccinate diesters. The said sulfosuccinate diesters 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
2026-11-03 08:55
CPC Classifications
C; C07; C07C; C07C309/00; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03; Y10S516/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
135 words
A sulfosuccinate surfactant according to the formula ##STR8## where R is alkyl; X is alkyl; R 1 is H or CH 3 ; R 2 is an alkyl having from 1 to 18 carbon atoms; M is a cation selected from the group of alkali metal, alkaline earth metal, ammonium, and water soluble organic amines; m is 1 or 2; n is zero or 1; y is 1 to 10 when R 1 is H and from 1 to 3 when R 1 is CH 3 ; w is 1 or 2; with the proviso that the number of carbon atoms in (R) m is from 2 to 24, and that there is a difference of at least 2 in the number of carbon atoms between the sum of the carbon atoms in (i) ##STR9##
Claim 2
Dependent Claim
135 words
A sulfosuccinate surfactant according to the formula ##STR8## where R is alkyl; X is alkyl; R 1 is H or CH 3 ; R 2 is an alkyl having from 1 to 18 carbon atoms; M is a cation selected from the group of alkali metal, alkaline earth metal, ammonium, and water soluble organic amines; m is 1 or 2; n is zero or 1; y is 1 to 10 when R 1 is H and from 1 to 3 when R 1 is CH 3 ; w is 1 or 2; with the proviso that the number of carbon atoms in (R) m is from 2 to 24, and that there is a difference of at least 2 in the number of carbon atoms between the sum of the carbon atoms in (i) ##STR9##
Claim 3
Dependent Claim
36 words
A surfactant according to claim 1, in which the difference in the number of carbon atoms between the sum of the carbon atoms in (i) (R) m --N(X) n and ##STR10## is from 4 to 14.
Claim 4
Dependent Claim
47 words
A surfactant according to claim 1, in which R is alkyl containing from 8 to 15 carbon atoms, X is alkyl containing from 1 to 8 carbon atoms, R 1 is H, R 2 is CH 3 , y is 2 to 6, and w is 1.
Claim 5
Dependent Claim
14 words
A surfactant according to claim 3, in which R is a straight chain alkyl.
Claim 6
Dependent Claim
22 words
A surfactant according to claim 1, in which R contains from 3 to 18 carbon atoms and is a branch chain alkyl.
Claim 7
Dependent Claim
39 words
A surfactant according to claim 1, in which (R) m is a C 2 -C 5 alkyl, R 1 is H where y is 2 to 6, and R 2 is alkyl containing from 1 to 18 carbon atoms.
Claim 8
Dependent Claim
13 words
A surfactant according to claim 1 which is represented by the formula: ##STR11##
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-01-11 | 1985-07-13 | 1986-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-11 | 1989-07-13 | 1990-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-11 | 1993-07-13 | 1994-01-12 | $7700.00 | Window Closed / Lapsed |