US4279786A
Expired / Lapsed
US
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Homogeneous aqueous alpha-olefin sulfonate composition
Assignee: Lion Fat and Oil Co Ltd
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Filing: 1979-12-12
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Granted: 1981-07-21
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Expires: 1999-12-12
Abstract
Abstract A homogeneous aqueous alpha-olefin sulfonate composition, which does not form "liquid crystal" due to temperature change and/or with the lapse of time, is presented. This composition contains, as a "liquid crystal" formation inhibitor, approximately 1 to approximately 10 parts by weight, based on 100 parts by weight of the alpha-olefin sulfonate, of at least one additive selected from the group consisting of allyl sulfonic acid, methallyl sulfonic acid, sorbic acid, gluconic acid, malic acid and the salts of said acids.
Inventors
- 👤 Shizuo Sekiguchi
- 👤 Tetsuo Tano
- 👤 Kyozo Kitano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:36
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/02; C11D1/12; C11D1/14; C11D1/143; C11D3/00; C11D3/16; C11D3/20; C11D3/2075; C11D3/2086; C11D3/34; C11D3/3409; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03; Y10S516/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
70 words
A homogeneous aqueous alpha-olefin sulfonate composition consisting essentially of: A. 100 parts by weight, in terms of alpha-olefin sulfonate, of an aqueous solution of at least one alpha-olefin sulfonate having from 10 to 20 carbon atoms; and B. from approximately 1 to approximately 10 parts by weight of at least one additive selected from the group consisting of sorbic acid, gluconic acid, malic acid and the salts of said acids.
Claim 2
Dependent Claim
70 words
A homogeneous aqueous alpha-olefin sulfonate composition consisting essentially of: A. 100 parts by weight, in terms of alpha-olefin sulfonate, of an aqueous solution of at least one alpha-olefin sulfonate having from 10 to 20 carbon atoms; and B. from approximately 1 to approximately 10 parts by weight of at least one additive selected from the group consisting of sorbic acid, gluconic acid, malic acid and the salts of said acids.
Claim 3
Dependent Claim
33 words
A homogeneous aqueous alpha-olefin sulfonate composition as claimed in claim 1, wherein the concentration of said aqueous alpha-olefin sulfonate solution is within the range of from approximately 30 to approximately 50% by weight.
Claim 4
Dependent Claim
24 words
A homogeneous aqueous alpha-olefin sulfonate composition as claimed in claim 1, wherein the salts of said acids are lithium, sodium, potassium and magnesium salts.
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) | 1984-07-20 | 1985-01-19 | 1985-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-07-20 | 1989-01-19 | 1989-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-07-20 | 1993-01-19 | 1993-07-21 | $7700.00 | Window Closed / Lapsed |