US4243549A
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Concentrated aqueous surfactant compositions
Assignee: Solvay Solutions UK Ltd
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Filing: 1978-07-25
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Granted: 1981-01-06
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Expires: 1998-07-25
Abstract
Abstract Mixtures of amphoteric and anionic surfactants are obtained as concentrated aqueous systems in the G phase.
Inventors
- 👤 Edward T. Messenger
- 👤 Douglas E. Mather
- 👤 Brinley M. Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:29
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/88; C11D1/94; C11D17/00; C11D17/0008; C11D17/0026; C11D1/02; C11D1/12; C11D1/123; C11D1/66; C11D1/72; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03; Y10S516/04; Y10S516/07; Y10S516/90; Y10S516/905; Y10S516/909
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
86 words
A pourable aqueous surfactant composition consisting essentially of water and an active mixture dilutable to a fluid active concentration between 5 and 30% by weight, said mixture consisting essentially of at least 10% based on the weight of said active mixture of at least one amphoteric surfactant, and at least 10% by weight of said active mixture of at least one anionic surfactant, the total weight of surfactants forming said active mixture being sufficient so that said composition is, at least predominantly, in the G phase.
Claim 2
Dependent Claim
86 words
A pourable aqueous surfactant composition consisting essentially of water and an active mixture dilutable to a fluid active concentration between 5 and 30% by weight, said mixture consisting essentially of at least 10% based on the weight of said active mixture of at least one amphoteric surfactant, and at least 10% by weight of said active mixture of at least one anionic surfactant, the total weight of surfactants forming said active mixture being sufficient so that said composition is, at least predominantly, in the G phase.
Claim 3
Dependent Claim
14 words
A composition as claimed in claim 1 additionally containing at least one nonionic surfactant.
Claim 4
Dependent Claim
41 words
A composition as claimed in claim 1 wherein the sum of the ratios of the concentration of each active component in the composition, to the concentration at which that component is capable of forming a G phase in water, is unity.
Claim 5
Dependent Claim
52 words
A composition as claimed in claim 1 wherein the graph of viscosity against the concentration of active mixture exhibits a minimum value corresponding to the formation of the G phase and wherein the proportion of active mixture present in the composition lies with ±10% of the concentration corresponding to the minimum value.
Claim 6
Dependent Claim
25 words
A composition as claimed in claim 4 wherein the concentration of the active mixture lies within ±5% of the concentration corresponding to the minimum value.
Claim 7
Dependent Claim
24 words
A composition as claimed in claim 5 wherein the concentration of active mixture lies within ±2.5% of the concentration corresponding to the minimum value.
Claim 8
Dependent Claim
25 words
A composition as claimed in claim 1 containing less than 5% by weight of non-surfactant organic material based on the weight of the active mixture.
Claim 9
Dependent Claim
23 words
A composition as claimed in claim 7 containing less than 2% of non-surfactant organic material based on the weight of the total composition.
Claim 10
Dependent Claim
13 words
A composition as claimed in claim 8 substantially free from non-surfactant organic solvent.
Claim 11
Dependent Claim
22 words
A composition as claimed in claim 1 containing less than 5% of non-colloidal electrolyte based on the weight of the active mixture.
Claim 12
Dependent Claim
24 words
A composition as claimed in claim 10 containing less than 2% by weight of non-colloidal electrolyte based on the weight of the total composition.
Claim 13
Dependent Claim
27 words
A composition as claimed in claim 1 wherein said amphoteric surfactant is an alkyl dimethylamine betaine wherein the alkyl group has from 8 to 22 carbon atoms.
Claim 14
Dependent Claim
26 words
A composition as claimed in claim 1 wherein the amphoteric surfactant is an amido amine betaine having a total of from 12 to 28 carbon atoms.
Claim 15
Dependent Claim
15 words
A composition as claimed in claim 1 wherein the amphoteric surfactant is an imidazoline betaine.
Claim 16
Dependent Claim
22 words
A composition as claimed in claim 1 wherein the anionic surfactant is an alkyl sulphate having from 8 to 22 carbon atoms.
Claim 17
Dependent Claim
27 words
A composition as claimed in claim 1 wherein the anionic surfactant is an alkyl ether sulphate wherein the alkyl group has from 8 to 22 carbon atoms.
Claim 18
Dependent Claim
15 words
A composition as claimed in claim 1 wherein the anionic surfactant is an alkyl sulphosuccinate.
Claim 19
Dependent Claim
27 words
A composition as claimed in claim 1 wherein said amphoteric surfactant is an alkyl dimethylamine betaine wherein the alkyl group has from 8 to 20 carbon atoms.
Claim 20
Dependent Claim
26 words
A composition as claimed in claim 1 wherein the amphoteric surfactant is an amido amine betaine having a total of from 8 to 20 carbon atoms.
Claim 21
Dependent Claim
22 words
A composition as claimed in claim 1 wherein the anionic surfactant is an alkyl sulphate having from 8 to 20 carbon atoms.
Claim 22
Dependent Claim
27 words
A composition as claimed in claim 1 wherein the anionic sufactant is an alkyl ether sulphate wherein the alkyl group has from 8 to 20 carbon atoms.
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) | 1984-01-06 | 1984-07-07 | 1985-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-06 | 1988-07-07 | 1989-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-06 | 1992-07-07 | 1993-01-06 | $7700.00 | Window Closed / Lapsed |