US5258142A
Expired / Lapsed
US
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Liquid, free-flowing and pumpable surfactant concentrate containing mixed anionic surfactant and alkyl polyglycoside surfactant
Assignee: Henkel AG and Co KGaA
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Filing: 1991-05-27
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Granted: 1993-11-02
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Expires: 2011-05-27
Abstract
Abstract The concentrates consist essentially of 35 to 55% by weight water, 10 to 30% by weight of an alkyl glycoside corresponding to the formula R 1 --O(G) n , in which R 1 is a C 8-22 alkyl radical, G is a glycose unit and n is a number of 1 to 10, 10 to 30% by weight of an alkyl sulfate corresponding to the formula R 2 --O--SO 3 X, in which R 2 is a C 8-22 alkyl radical and X is an alkali or ammonium ion, and 1 to 15% by weight of an alkane sulfonate corresponding to the formula ##STR1## in which R 3 and R 4 independently of one another represent C 1-18 alkyl radicals, with the proviso that the total number of carbon atoms in the alkane sulfonate is between 10 and 20, and Y is an alkali or ammonium ion. They are used as storable, free-flowing and pumpable compounds, preferably for the production of detergents.
Inventors
- 👤 Brigitte Giesen
- 👤 Andreas Syldath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:39
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/66; C11D1/83; C09; C09K; C09K23/00; C09K23/017; C11D1/02; C11D1/12; C11D1/14; C11D1/662
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
162 words
An aqueous, free-flowing and pumpable surfactant mixture consisting essentially of from about 35% to about 55% by weight of water; from about 10% to about 30% by weight of an alkyl polyglycoside of the formula I R.sup.1 --O(G).sub.n (I) wherein R 1 is a C 8-22 alkyl radical, G is a glycose unit and n is a number from 1 to 10; from about 10% to about 20% by weight of an alkyl sulfate of the formula II R.sup.2 --O--SO.sub.3 X (II) wherein R 2 is a C 8-22 alkyl radical and X is an alkali metal or ammonium ion; and from about 1% to about 15% by weight of an alkane sulfonate of the formula III ##STR3## wherein each of R 3 and R 4 is independently a C 1-18 alkyl radical, Y is an alkali metal or ammonium ion, with the proviso that the total number of carbon atoms in said alkane sulfonate is from about 10 to about 20.
Claim 2
Dependent Claim
162 words
An aqueous, free-flowing and pumpable surfactant mixture consisting essentially of from about 35% to about 55% by weight of water; from about 10% to about 30% by weight of an alkyl polyglycoside of the formula I R.sup.1 --O(G).sub.n (I) wherein R 1 is a C 8-22 alkyl radical, G is a glycose unit and n is a number from 1 to 10; from about 10% to about 20% by weight of an alkyl sulfate of the formula II R.sup.2 --O--SO.sub.3 X (II) wherein R 2 is a C 8-22 alkyl radical and X is an alkali metal or ammonium ion; and from about 1% to about 15% by weight of an alkane sulfonate of the formula III ##STR3## wherein each of R 3 and R 4 is independently a C 1-18 alkyl radical, Y is an alkali metal or ammonium ion, with the proviso that the total number of carbon atoms in said alkane sulfonate is from about 10 to about 20.
Claim 3
Dependent Claim
53 words
The surfactant mixture of claim 1 wherein the amount of said alkyl glycoside is from about 17% to about 25% by weight; the amount of said alkyl sulfate is from about 12% to about 18% by weight; and the amount of said alkane sulfonate is from about 3% to about 10% by weight.
Claim 4
Dependent Claim
19 words
The surfactant mixture of claim 1 wherein in said alkyl glycoside of formula I n is less than 1.5.
Claim 5
Dependent Claim
21 words
The surfactant mixture of claim 3 wherein in said alkyl glycoside of formula I n from about 1.2 to about 1.4.
Claim 6
Dependent Claim
15 words
The surfactant mixture of claim 1 wherein in said alkyl glycoside is an alkyl glucoside.
Claim 7
Dependent Claim
29 words
The surfactant mixture of claim 1 wherein R 2 is said alkyl sulfate of formula II is an alkyl radical having from about 12 to about 16 carbon atoms.
Claim 8
Dependent Claim
24 words
The surfactant mixture of claim 1 wherein said alkane sulfonate of formula III contains a total of from about 12 to 17 carbon atoms.
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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) | 1996-11-01 | 1997-05-03 | 1997-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-11-01 | 2001-05-03 | 2001-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-11-01 | 2005-05-03 | 2005-11-02 | $7700.00 | Window Closed / Lapsed |