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US4692271A Expired / Lapsed US ⏱️ 0.0 years remaining

Concentrated aqueous surfactant compositions

Assignee: Solvay Solutions UK Ltd
•
Filing: 1980-07-24
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Granted: 1987-09-08
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Expires: 2000-07-24
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Abstract

Abstract Surfactant mixtures are prepared in a fluid "G" phase of more than 50% concentration, the mixtures comprise different surfactant products selected respectively from at least two of the following classes, that is to say alkyl sulphates, alkyl ether sulphates, olefin sulphonates, alkyl benzene sulphonates, alkyl sulphosuccinates, alkyl ether sulphosuccinates, alkyl sulphosuccinamates, paraffin sulphonates, fatty carboxylates, alkyl ether carboxylates, alkyl phosphates, alkyl ether phosphates, alkyl phenol sulphates, alkyl phenyl ether sulphates, alkyl phenyl ether sulphonates, fatty ester sulphonates, fatty acid sulphonates, acyl sarcosinates and acyl taurides.

Inventors

  • 👤 Edward T. Messenger
  • 👤 Douglas E. Mather
  • 👤 Brinley M. Phillips

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 22:19
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/38; C11D1/65; C11D1/652; C11D1/02; C11D1/37; C11D1/645; C11D1/66; C11D1/83; C11D1/835; C11D1/88; C11D1/94; C11D10/00; C11D10/04; C11D10/045; C11D17/00; C11D17/0008; C11D17/0026; C11D1/04; C11D1/10; C11D1/12; C11D1/123; C11D1/14; C11D1/146; C11D1/22; C11D1/28; C11D1/29; C11D1/34; C11D1/345; C11D1/52; C11D1/523; C11D1/528; C11D1/75; C11D1/90; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03; Y10S516/05; Y10S516/90

Claims Analysis

Total Claims: 31
Claim 1
Independent Claim 174 words
A pumpable aqueous surfactant composition consisting essentially of water, and an active surfactant mixture in an amount between above 45% and below 80% by weight and sufficient to form the "G" phase with said water, said active mixture consisting of at least 5% each by weight of the composition, of different surfactant products selected respectively from at least 2 of the classes consisting of: alkyl sulphates; alkyl ether sulphates; olefin sulphonates; alkyl benzene sulphonates; alkyl sulphosuccinates; alkanolamide sulphosuccinates; paraffin sulphonates; fatty carboxylates; alkyl ether carboxylates; alkyl phosphates; alkyl ether phosphates; alkyl phenol sulphates; alkyl phenol ether sulphates; alkyl phenol ether sulphonates; fatty ester sulphonates; fatty acid sulphonates; acyl sarcosinates; and acyl taurides; wherein, in each case, there are alkyl, alkenyl or acyl groups which have an average total of from 8 to 22 carbon atoms and any ether groups comprise glyceryl groups and/or polyoxyalkylene groups, which polyoxyalkylene groups comprise from 1 to 20 ethylene oxide and/or propylene oxide units, said aqueous surfactant composition being in the "G" phase at a temperature below 23° C.
Claim 2
Dependent Claim 174 words
A pumpable aqueous surfactant composition consisting essentially of water, and an active surfactant mixture in an amount between above 45% and below 80% by weight and sufficient to form the "G" phase with said water, said active mixture consisting of at least 5% each by weight of the composition, of different surfactant products selected respectively from at least 2 of the classes consisting of: alkyl sulphates; alkyl ether sulphates; olefin sulphonates; alkyl benzene sulphonates; alkyl sulphosuccinates; alkanolamide sulphosuccinates; paraffin sulphonates; fatty carboxylates; alkyl ether carboxylates; alkyl phosphates; alkyl ether phosphates; alkyl phenol sulphates; alkyl phenol ether sulphates; alkyl phenol ether sulphonates; fatty ester sulphonates; fatty acid sulphonates; acyl sarcosinates; and acyl taurides; wherein, in each case, there are alkyl, alkenyl or acyl groups which have an average total of from 8 to 22 carbon atoms and any ether groups comprise glyceryl groups and/or polyoxyalkylene groups, which polyoxyalkylene groups comprise from 1 to 20 ethylene oxide and/or propylene oxide units, said aqueous surfactant composition being in the "G" phase at a temperature below 23° C.
Claim 3
Dependent Claim 16 words
A composition according to claim 1 consisting essentially of at least 60% of said active mixture.
Claim 4
Dependent Claim 21 words
A composition according to claim 2, containing up to 5% by weight of the active mixture of nonionic and/or amphoteric surfactants.
Claim 5
Dependent Claim 79 words
A composition to claim 2, having n active components where n is an integer greater than 1, and wherein the active components are each capable of forming a "G" phase with water at concentrations respectively of g 1 . . . g n and are present in the composition respectively at concentrations of c 1 . . . c n such that (C 1 /g 1 )+(C 2 /g 2 )+ . . . (C n /g n )=1.
Claim 6
Dependent Claim 53 words
A composition according to claim 2, wherein the graph of viscosity against the concentration of active mixture in water exhibits a minimum value corresponding to the formation of the "G" phase and wherein the proportion of active mixture present in the composition lies within ±10% of the concentration corresponding to the minimum value.
Claim 7
Dependent Claim 23 words
A composition according to claim 5 wherein the concentration of the active mixture lies within ±5% of the concentration corresponding to the minimum.
Claim 8
Dependent Claim 23 words
A composition according to claim 6, wherein the concentration of the active mixture lies within ±2.5% of the concentration corresponding to the minimum.
Claim 9
Dependent Claim 30 words
A composition according to either of claims 1 or 5, wherein at least two different components are each present in proportions of more than 10% by weight of the composition.
Claim 10
Dependent Claim 30 words
A composition according to claim 8 wherein the active mixture comprises at least 10% by weight of an alkyl sulphosuccinate and at least 10% by weight of an alkyl sulphate.
Claim 11
Dependent Claim 28 words
A composition according to either of claims 1 or 5, containing less than 5% by weight of non-surfactant organic material based on the weight of the active mixture.
Claim 12
Dependent Claim 21 words
A composition according to claim 10 containing less than 5% of non-colloidal electrolyte based on the weight of the active mixture.
Claim 13
Dependent Claim 30 words
A composition according to claim 11 wherein the active mixture comprises at least 10% by weight of an alkyl sulphosuccinate and at least 10% by weight of an alkyl sulphate.
Claim 14
Dependent Claim 23 words
A composition according to claim 11 containing less than 2% by weight of non-colloidal electrolyte based on the weight of the total composition.
Claim 15
Dependent Claim 30 words
A composition according to claim 10 wherein the active mixture comprises at least 10% by weight of an alkyl sulphosuccinate and at least 10% by weight of an alkyl sulphate.
Claim 16
Dependent Claim 22 words
A composition according to claim 10 containing less than 2% of non-surfactant organic material based on the weight of the total composition.
Claim 17
Dependent Claim 30 words
A composition according to claim 15 wherein the active mixture comprises at least 10% by weight of an alkyl sulphosuccinate and at least 10% by weight of an alkyl sulphate.
Claim 18
Dependent Claim 12 words
A composition according to claim 15 substantially free from non-surfactant organic solvent.
Claim 19
Dependent Claim 30 words
A composition according to claim 17 wherein the active mixture comprises at least 10% by weight of an alkyl sulphosuccinate and at least 10% by weight of an alkyl sulphate.
Claim 20
Dependent Claim 25 words
A composition according to either of claims 1 or 5 containing less than 5% of non-colloidal electrolyte based on the weight of the active mixture.
Claim 21
Dependent Claim 30 words
A composition according to claim 19 wherein the active mixture comprises at least 10% by weight of an alkyl sulphosuccinate and at least 10% by weight of an alkyl sulphate.
Claim 22
Dependent Claim 36 words
A composition according to either of claims 1 or 5 wherein the active mixture comprises at least 10% by weight of an alkyl ether sulphate and at least 10% by weight of an alkyl benzene sulphonate.
Claim 23
Dependent Claim 23 words
A composition according to claim 21 wherein the proportion of alkyl ether sulphate is at least 50% by weight of the active mixture.
Claim 24
Dependent Claim 35 words
A composition according to either of claims 1 or 5 wherein the active mixture comprises at least 10% by weight of an alkyl ether sulphate and at least 10% by weight of an alkyl sulphate.
Claim 25
Dependent Claim 23 words
A composition according to claim 23 wherein the proportion of alkyl ether sulphate is at least 50% by weight of the active mixture.
Claim 26
Dependent Claim 35 words
A composition according to either of claims 1 or 5 wherein the active mixture comprises at least 10% by weight of an alkyl ether sulphate and at least 10% by weight of an olefin sulphonate.
Claim 27
Dependent Claim 23 words
A composition according to claim 25 wherein the proportion of alkyl ether sulphate is at least 50% by weight of the active mixture.
Claim 28
Dependent Claim 39 words
A composition according to any one of claims 1, 4, 5, 6, 7 or 2 wherein the active mixture comprises at least 10% by weight of an alkyl sulphosuccinate and at least 10% by weight of an alkyl sulphate.
Claim 29
Dependent Claim 36 words
A composition according to either of claims 1 or 5 wherein the active mixture comprises at least 10% by weight of an alky ether sulphosuccinate and at least 10% by weight of an alkyl ether sulphate.
Claim 30
Dependent Claim 35 words
A composition according to either of claims 1 or 5 wherein the active mixture comprises at least 10% by weight of an alkyl ether sulphate and at least 10% by weight of an alkyl sulphosuccinamate.
Claim 31
Dependent Claim 36 words
A composition according to either of claims 1 or 5 wherein the active mixture comprises at least 10% by weight of an alkanolamido ether sulphosuccinate and at least 10% by weight of an alkyl ether sulphate.

References Cited (Backward Citations)

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US3513099A Cited
US3707511A Cited
US3506588A Cited
US4072632A Cited
US4304680A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-09-07 1991-03-09 1991-09-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-09-07 1995-03-09 1995-09-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-09-07 1999-03-09 1999-09-08 $7700.00 Window Closed / Lapsed

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