US4576744A
Expired / Lapsed
US
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Detergent compositions
Assignee: Lever Brothers Co
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Filing: 1984-04-20
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Granted: 1986-03-18
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Expires: 2004-04-20
Abstract
Abstract Certain polymers, notably hydroxyethyl and hydroxypropyl celluloses, hydroxypropyl guars, xanthan gums, and certain acrylic polymers, enhance the foam stability of liquid detergents based on dialkyl sulphosuccinates while simultaneously providing increased viscosity.
Inventors
- 👤 Robert J. Edwards
- 👤 Paul D. Hardman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:55
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/0005; C11D3/0094; C11D1/00; C11D1/02; C11D1/12; C11D1/123; C11D3/16; C11D3/20; C11D3/22; C11D3/222; C11D3/225; C11D3/37; C11D3/3746; C11D3/3757; C11D3/3765; C11D3/3769; C11D3/3773
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
109 words
A foaming aqueous liquid detergent composition having a viscosity of at least 60 cp to 2000 cp at 25° C., as measured at a shear rate of 26.5 s -1 , and consisting essentially of from 2 to 60% by weight of the total composition of an active detergent system comprising a water-soluble salt of a dialkyl ester of sulphosuccinic acid in which the alkyl groups may be the same or different, at least 40% by weight of water, and from 0.5 to 5% by weight of a water-soluble polymer, said polymer being a cellulose ether having hydroxyethyl or hydroxypropyl substituents, said composition being free of quaternary ammonium salts.
Claim 2
Dependent Claim
109 words
A foaming aqueous liquid detergent composition having a viscosity of at least 60 cp to 2000 cp at 25° C., as measured at a shear rate of 26.5 s -1 , and consisting essentially of from 2 to 60% by weight of the total composition of an active detergent system comprising a water-soluble salt of a dialkyl ester of sulphosuccinic acid in which the alkyl groups may be the same or different, at least 40% by weight of water, and from 0.5 to 5% by weight of a water-soluble polymer, said polymer being a cellulose ether having hydroxyethyl or hydroxypropyl substituents, said composition being free of quaternary ammonium salts.
Claim 3
Dependent Claim
107 words
A foaming aqueous liquid detergent composition having a viscosity of at least 60 cp to 2000 cp at 25° C., as measured at a shear rate of of 26.5 s -1 , and consisting essentially of from 2 to 60% by weight of the total composition of an active detergent system comprising a water-soluble salt of a dialkyl ester of sulphosuccinic acid in which the alkyl groups may be the same or different, at least 40% by weight of water, and from 0.05 to 5% by weight of a water-soluble polymer, said polymer being a guar having hydrophilic substituents, said composition being free of quaternary ammonium salts.
Claim 4
Dependent Claim
107 words
A foaming aqueous liquid detergent composition having a viscosity of at least 60 cp to 2000 cp at 25° C., as measured at a shear rate of of 26.5 s -1 , and consisting essentially of from 2 to 60% by weight of the total composition of an active detergent system comprising a water-soluble salt of a dialkyl ester of sulphosuccinic acid in which the alkyl groups may be the same or different, at least 40% by weight of water, and from 0.05 to 5% by weight of a water-soluble polymer, said polymer being a guar having hydrophilic substituents, said composition being free of quaternary ammonium salts.
Claim 5
Dependent Claim
107 words
A foaming aqueous liquid detergent composition having a viscosity of at least 60 cp to 2000 cp at 25° C., as measured at a shear rate of 26.5 s -1 , and consisting essentially of from 2 to 60% by weight of the total composition of an active detergent system comprising a water-soluble salt of a dialkyl ester of sulphosuccinic acid in which the alkyl groups may be the same or different, at least 40% by weight of water, and from 0.05 to 5% by weight of a water-soluble synthetic polymer carrying carboxyl substituents in salt or amide form, said composition being free of quaternary ammonium salt.
Claim 6
Dependent Claim
107 words
A foaming aqueous liquid detergent composition having a viscosity of at least 60 cp to 2000 cp at 25° C., as measured at a shear rate of 26.5 s -1 , and consisting essentially of from 2 to 60% by weight of the total composition of an active detergent system comprising a water-soluble salt of a dialkyl ester of sulphosuccinic acid in which the alkyl groups may be the same or different, at least 40% by weight of water, and from 0.05 to 5% by weight of a water-soluble synthetic polymer carrying carboxyl substituents in salt or amide form, said composition being free of quaternary ammonium salt.
Claim 7
Dependent Claim
105 words
A foaming aqueous liquid detergent composition having a viscosity of at least 60 cp to 2000 cp at 25° C., as measured at a shear rate of of 26.5 s -1 , and consisting essentially of from 2 to 60% by weight of the total composition of an active detergent system comprising a water-soluble salt of a dialkyl ester of sulphosuccinic acid in which the alkyl groups may be the same or different, at least 40% by weight of water, and from 0.05 to 5% by weight of a water-soluble polymer, said polymer being a xanthan gum, said composition being free of quaternary ammonium salt.
Claim 8
Dependent Claim
105 words
A foaming aqueous liquid detergent composition having a viscosity of at least 60 cp to 2000 cp at 25° C., as measured at a shear rate of of 26.5 s -1 , and consisting essentially of from 2 to 60% by weight of the total composition of an active detergent system comprising a water-soluble salt of a dialkyl ester of sulphosuccinic acid in which the alkyl groups may be the same or different, at least 40% by weight of water, and from 0.05 to 5% by weight of a water-soluble polymer, said polymer being a xanthan gum, said composition being free of quaternary ammonium salt.
Claim 9
Dependent Claim
26 words
The detergent composition of claim 1 or 2, wherein the polymer is a hydroxypropyl polysaccharide having a level of hydroxypropyl molar substitution of at least 0.18.
Claim 10
Dependent Claim
15 words
The detergent composition of claim 1, wherein the polymer is a hydroxyethyl or hydroxypropyl cellulose.
Claim 11
Dependent Claim
13 words
The detergent composition of claim 2, wherein the polymer is a hydroxypropyl guar.
Claim 12
Dependent Claim
38 words
The detergent composition of claim 3, wherein the polymer is selected from the group consisting of salts of polyacrylic acid, salts of polymethacrylic acid, polyacrylamides, copolymers of acrylic and/or methacrylic acid salts with acrylamide, and ethylene/maleic anhydride copolymers.
Claim 13
Dependent Claim
20 words
The detergent composition of claims 1, 2, 3 or 4, which contains from 0.1 to 1.5% by weight of polymer.
Claim 14
Dependent Claim
30 words
The detergent composition of claims 1, 2, 3 or 4, having a viscosity within the range of from 70 to 2000 cp at 25° C. and 26.5 s -1 .
Claim 15
Dependent Claim
26 words
The detergent composition of claim 10, having a viscosity within the range of from 100 to 1500 cp at 25° C. and 26.5 s -1 .
Claim 16
Dependent Claim
23 words
The detergent composition of claim 10, having a viscosity of from 200 to 500 cp at 25° C. and 26.5 s -1 .
Claim 17
Dependent Claim
21 words
The detergent composition of claims 1, 2, 3 or 4, which contains from 2 to 30% by weight of active detergent.
Claim 18
Dependent Claim
21 words
The detergent composition of claims 1, 2, 3 or 4, which contains from 2 to 20% by weight of active detergent.
Claim 19
Dependent Claim
23 words
The detergent composition of claims 1, 2, 3 or 4, wherein the active detergent system comprises dialkyl sulphosuccinate, together with alkyl ether sulphate.
Claim 20
Dependent Claim
20 words
The detergent composition of claim 15, wherein the ratio of dialkyl sulphosuccinate to alkyl ether sulphate is at least 1:1.
Claim 21
Dependent Claim
25 words
The detergent composition of claim 15, wherein the ratio of dialkyl sulphosuccinate to alkyl ether sulphate is within the range of from 1.5:1 to 5:1.
Claim 22
Dependent Claim
19 words
The detergent composition of claims 1, 2, 3 or 4, which contains at least 50% by weight of water.
References Cited (Backward Citations)
GB1054244A
Cited
GB1073655A
Cited
GB1071660A
Cited
US3503895A
Cited
GB1270040A
Cited
US3950260A
Cited
GB1250614A
Cited
GB1380402A
Cited
US3969500A
Cited
GB1429639A
Cited
US3980769A
Cited
GB1460893A
Cited
GB1471406A
Cited
GB1512355A
Cited
US4022731A
Cited
GB1576946A
Cited
GB1584127A
Cited
EP0013836A1
Cited
US4284534A
Cited
US4228048A
Cited
US4260528A
Cited
EP0051983A1
Cited
GB2095276A
Cited
US4434087A
Cited
EP0071414A2
Cited
EP0071413A2
Cited
GB2104913A
Cited
GB2105325A
Cited
GB2108520A
Cited
GB2103236A
Cited
US4414144A
Cited
US4472297A
Cited
EP0089213A2
Cited
WO1983003621A1
Cited
GB2126243A
Cited
GB2130236A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-17 | 1989-09-16 | 1990-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-17 | 1993-09-16 | 1994-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-17 | 1997-09-16 | 1998-03-18 | $7700.00 | Window Closed / Lapsed |