US4052342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Secondary alkyl sulfate: alcohol ethoxylate mixtures
Assignee: Shell USA Inc
•
Filing: 1976-02-13
•
Granted: 1977-10-04
•
Expires: 1996-02-13
Abstract
Abstract Detergent compositions comprising low crystalline fraction secondary alkyl sulphates derived from C 10 -C 18 olefins and alcohol ethoxy sulphates and/or alcohol ethoxylates have good detergency properties.
Inventors
- 👤 George W. Fernley
- 👤 Cecil M. Stone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:33
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/66; C11D1/83; C11D1/02; C11D1/12; C11D1/14; C11D1/29; C11D1/72
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
114 words
A detergent composition consisting essentially of a first component selected from the group consisting of a potassium, sodium, ammonium and amine salt of a low crystalline fraction secondary alkyl sulfate derived from C 13 to C 15 olefins having less than about 70% of the sulfate groups on the 2- and 3- carbon atoms and a second component consisting of C 9 to C 11 alcohol ethoxylates containing on the average eight moles of ethylene oxide per mole of alcohol prepared by hydroformylating and ethoxylating a mixture of C 8 to C 10 olefins and wherein the weight ratio of said first component to said second component ranges from about 3:1 to about 1:1.
Claim 2
Dependent Claim
114 words
A detergent composition consisting essentially of a first component selected from the group consisting of a potassium, sodium, ammonium and amine salt of a low crystalline fraction secondary alkyl sulfate derived from C 13 to C 15 olefins having less than about 70% of the sulfate groups on the 2- and 3- carbon atoms and a second component consisting of C 9 to C 11 alcohol ethoxylates containing on the average eight moles of ethylene oxide per mole of alcohol prepared by hydroformylating and ethoxylating a mixture of C 8 to C 10 olefins and wherein the weight ratio of said first component to said second component ranges from about 3:1 to about 1:1.
Claim 3
Dependent Claim
36 words
The composition of claim 1 wherein about 60% of the sulfate groups are positioned on the 2- and 3- carbon atoms and the weight ratio of said first component to said second component is about 3:1.
Claim 4
Dependent Claim
36 words
The composition of claim 1 wherein about 60% of the sulfate groups are positioned on the 2- and 3- carbon atoms and the weight ratio of said first component to said second component is about 1:1.
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) | 1980-10-03 | 1981-04-04 | 1981-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-03 | 1985-04-04 | 1985-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-03 | 1989-04-04 | 1989-10-04 | $7700.00 | Window Closed / Lapsed |