Patent US4732707A successfully refreshed from Google Patents.
US4732707A
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Detergent compositions containing special alkyl ether sulphate in combination with alkylbenzene sulphonate and/or dialkyl sulphosuccinate esters
Assignee: Lever Brothers Co
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Filing: 1987-01-30
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Granted: 1988-03-22
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Expires: 2007-01-30
Abstract
Abstract Alkyl ether sulphates are disclosed that are derived substantially wholly from C12 and C13 alcohols, at least 50% by weight being branched at the 2-position and at least 30% by weight being 2-ethyl or more highly branched. Foaming detergent compositions containing an alkylbenzene sulphonate and/or a dialkyl sulphosuccinate in combination with an alkyl ether sulphate of this specific type exhibit excellent foaming and detergency and are especially suitable for hand dishwashing.
Inventors
- 👤 Appaya R. Naik
- 👤 Francesco M. Orlandini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:14
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/0005; C11D3/0094; C11D1/00; C11D1/02; C11D1/37; C11D1/12; C11D1/123; C11D1/14; C11D1/22; C11D1/29; C11D1/38; C11D1/52; C11D1/523; C11D1/66; C11D1/72
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
167 words
A foaming detergent composition comprising from 2 to 95% by weight of an active detergent system consisting essentially of: (a) a linear C 8 -C 14 alkylbenzene sulphonate and/or a C 4 -C 10 dialkyl sulphosuccinate, and (b) an alkyl ether sulphate of the formula I R.sub.1 --O--(CH.sub.2 CH.sub.2 O).sub.n --SO.sub.3 X.sub.1 (I) wherein R 1 is an alkyl group, the average degree of ethoxylation n is from 2 to 7 and X 1 is a solubilising cation, the alkyl ether sulphate of the formula I consisting substantially wholly of material in which the group R 1 has 12 to 13 carbon atoms, and comprising at least 55% by weight of material in which the group R 1 is branched at the 2-position, and comprising at least 35% by weight of material in which the group R 1 carries at the 2-position an alkyl group containing 2 or more carbon atoms, the weight ratio of (a) to (b) being within the range of from 2:1 to 0.5:1.
Claim 2
Dependent Claim
167 words
A foaming detergent composition comprising from 2 to 95% by weight of an active detergent system consisting essentially of: (a) a linear C 8 -C 14 alkylbenzene sulphonate and/or a C 4 -C 10 dialkyl sulphosuccinate, and (b) an alkyl ether sulphate of the formula I R.sub.1 --O--(CH.sub.2 CH.sub.2 O).sub.n --SO.sub.3 X.sub.1 (I) wherein R 1 is an alkyl group, the average degree of ethoxylation n is from 2 to 7 and X 1 is a solubilising cation, the alkyl ether sulphate of the formula I consisting substantially wholly of material in which the group R 1 has 12 to 13 carbon atoms, and comprising at least 55% by weight of material in which the group R 1 is branched at the 2-position, and comprising at least 35% by weight of material in which the group R 1 carries at the 2-position an alkyl group containing 2 or more carbon atoms, the weight ratio of (a) to (b) being within the range of from 2:1 to 0.5:1.
Claim 3
Dependent Claim
22 words
A detergent composition as claimed in claim 1, wherein the anionic detergent (a) comprises a linear C 10 -C 13 alkylbenzene sulphonate.
Claim 4
Dependent Claim
32 words
A detergent composition as claimed in claim 1, wherein the anionic detergent (a) comprises a C 6 -C 8 dialkyl sulphosuccinate in which the alkyl groups may be the same or different.
Claim 5
Dependent Claim
72 words
A detergent composition as claimed in claim 1, wherein the active detergent system further comprises (c) a primary alkyl sulphate of the formula III R.sub.4 --O--SO.sub.3 X.sub.3 (III) wherein R 4 is a C 10 -C 20 alkyl group and X 3 is a solubilising cation which may be the same as or different from X 1 , the amount of component (c) present not exceeding the amount of component (a) present.
Claim 6
Dependent Claim
73 words
A detergent composition as claimed in claim 1, wherein the active detergent system further comprises (d) an ethoxylated alcohol or alkylphenol of the formula IV R.sub.5 --(C.sub.6 H.sub.4).sub.x --(OCH.sub.2 CH.sub.2).sub.m --OH (IV) wherein x is zero or 1, R 5 is a C 6 -C 20 alkyl group and m is within the range of from 5 to 30, the amount of component (d) present not exceeding the amount of component (b) present.
Claim 7
Dependent Claim
86 words
A detergent composition as claimed in claim 1, wherein component (a) is a linear C 8 -C 14 alkylbenzene sulphonate and the active detergent system further comprises an alkyl mono- or diethanolamide of the formula V ##STR3## wherein R 6 is a C 10 -C 20 alkyl group, and R 7 is H or CH 2 CH 2 OH, the amount of mono- or diethanolamide present not exceeding the amount of component (b) present and not exceeding 25% by weight of the total active detergent system.
Claim 8
Dependent Claim
74 words
A detergent composition as claimed in claim 1, wherein component (a) is a C 4 -C 10 dialkyl sulphosuccinate and the active detergent system further comprises an alkyl diethanolamide of the formula VI R.sub.8 --CO--N(CH.sub.2 CH.sub.2 OH).sub.2 (VI) wherein R 8 is a C 10 -C 20 alkyl group, the amount of diethanolamide present not exceeding the amount of component (b) present and not exceeding 25% by weight of the total active detergent system.
Claim 9
Dependent Claim
23 words
A detergent composition as claimed in claim 1, wherein the weight ratio of component (a) to component (b) is from 2:1 to 1:1.
Claim 10
Dependent Claim
31 words
A detergent composition as claimed in claim 1, which comprises an aqueous liquid or gel having a total active detergent content within the range of from 2 to 80% by weight.
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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) | 1991-03-22 | 1991-09-21 | 1992-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-22 | 1995-09-21 | 1996-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-22 | 1999-09-21 | 2000-03-22 | $7700.00 | Window Closed / Lapsed |