US4820448A
Expired / Lapsed
US
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Surfactant mixtures and their use
Assignee: Henkel AG and Co KGaA
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Filing: 1987-09-08
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Granted: 1989-04-11
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Expires: 2007-09-08
Abstract
Abstract A low-water content surfactant mixture which is pourable and pumpable at ambient temperature having high wetting power and detergency when used in a fabric detergent composition has a water content of no more than about 20% by weight, and consists essentially of (1) from about 50 to about 65% by weight of a C 12 -C 18 fatty alcohol ethoxylate containing an average of about 10 moles of ethylene oxide, (2) from about 5 to about 15% by weight of an alkali metal salt of a C 16 -C 18 tallow alcohol sulfate; (3) from about 4 to about 15% by weight of a C 12 -C 16 alkane sulfonate alkali metal salt and/or the disodium salt of n-octyl sulfosuccinate; and (4) from about 5 to about 13% by weight of a free C 16 -C 18 fatty acid.
Inventors
- 👤 Ingo Wegener
- 👤 Alfred Meffert
- 👤 Ditmar Kischkel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:00
CPC Classifications
C; C11; C11D; C11D10/00; C11D10/04; C11D1/00; C11D1/66; C11D1/83; C11D3/00; C11D3/16; C11D3/20; C11D3/2075; C11D3/2079; C11D1/02; C11D1/12; C11D1/123; C11D1/14; C11D1/72
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
43 words
A low-water content surfactant mixture which is pourable and pumpable at ambient conditions having high wetting power and detergency when used in a fabric detergent composition, said surfactant mixture having a water content of less than about 20% by weight, and consisting of:
Claim 2
Dependent Claim
43 words
A low-water content surfactant mixture which is pourable and pumpable at ambient conditions having high wetting power and detergency when used in a fabric detergent composition, said surfactant mixture having a water content of less than about 20% by weight, and consisting of:
Claim 3
Dependent Claim
159 words
from about 50 to about 65% by weight of a C 12 -C 18 fatty alcohol ethoxylate containing an average of about 10 moles of ethylene oxide which is a solid at room temperature and has a melting point of about 30° C.; 2. from about 5 to about 15% by weight of an alkali metal salt of a C 16 -C 18 tallow alcohol sulfate which is a solid at room temperature and has a melting point of from about 55° to about 60° C.; 3. from about 4 to about 15% by weight of a C 12 -C 16 alkane sulfonate alkali metal salt or the disodium salt of n-octyl sulfosuccinate which is a solid at room temperature; and 4. from about 5 to about 13% by weight of a free C 16 -C 18 fatty acid having a melting point of about 55° C., all weights being based on the total weight of said surfactant mixture.
Claim 4
Dependent Claim
159 words
from about 50 to about 65% by weight of a C 12 -C 18 fatty alcohol ethoxylate containing an average of about 10 moles of ethylene oxide which is a solid at room temperature and has a melting point of about 30° C.; 2. from about 5 to about 15% by weight of an alkali metal salt of a C 16 -C 18 tallow alcohol sulfate which is a solid at room temperature and has a melting point of from about 55° to about 60° C.; 3. from about 4 to about 15% by weight of a C 12 -C 16 alkane sulfonate alkali metal salt or the disodium salt of n-octyl sulfosuccinate which is a solid at room temperature; and 4. from about 5 to about 13% by weight of a free C 16 -C 18 fatty acid having a melting point of about 55° C., all weights being based on the total weight of said surfactant mixture.
Claim 5
Dependent Claim
18 words
A surfactant mixture as in claim 1 wherein said water content is less than about 15% by weight.
Claim 6
Dependent Claim
105 words
A surfactant mixture as in claim 1 consisting of: 1. from 57 to about 62% by weight of said C 12 -C 18 fatty alcohol ethoxylate containing an average of about 10 moles of ethylene oxide; 2. from about 7 to about 10% by weight of said alkali metal salt of a C 16 -C 18 tallow alcohol sulfate; 3. from about 8 to about 12% by weight of said C 12 -C 16 alkane sulfonate alkali metal salt and/or said disodium salt of n-octyl sulfosuccinate; and 4. from about 6 to about 10% by weight of said free C 16 -C 18 fatty acid.
Claim 7
Dependent Claim
18 words
A surfactant mixture as in claim 3 wherein said water content is less than about 15% by weight.
Claim 8
Dependent Claim
98 words
A surfactant mixture as in claim 1 consisting of: 1. about 60% by weight of said C 12 -C 18 fatty alcohol ethoxylate containing an average of about 10 moles of ethylene oxide; 2. from about 8.5 to about 9% by weight of said alkali metal salt of a C 16 -C 18 tallow alcohol sulfate; 3. from about 9 to about 10% by weight of said C 12 -C 16 alkane sulfonate alkali metal salt and/or said disodium salt of n-octyl sulfosuccinate; and 4. about 8% by weight of said free C 16 -C 18 fatty acid.
Claim 9
Dependent Claim
217 words
The process of preparing a powder detergent composition consisting of spray-mixing preformed free-flowing detergent components with up to about 20% by weight, based on the weight of said detergent composition, of a low-water content surfactant mixture which is pourable and pumpable at ambient conditions, said surfactant mixture having a water content of less than about 20% by weight and consisting of: 1. from about 50 to about 65% by weight of a C 12 -C 18 fatty alcohol ethoxylate containing an average of about 10 moles of ethylene oxide which is a solid at room temperature and has a melting point of about 30° C.; 2. from about 5 to about 15% by weight of an alkali metal salt of a C 16 -C 18 tallow alcohol sulfate which is a solid room at temperature and has a melting point of from about 55° to about 60° C.; 3. from about 4 to about 15% by weight of a C 12 -C 16 alkane sulfonate alkali metal salt or the disodium salt of n-octyl sulfosuccinate which is a solid at room temperature; and 4. from about 5 to about 13% by weight of a free C 16 -C 18 fatty acid having a melting point of about 55° C., based on the weight of said surfactant mixture.
Claim 10
Dependent Claim
217 words
The process of preparing a powder detergent composition consisting of spray-mixing preformed free-flowing detergent components with up to about 20% by weight, based on the weight of said detergent composition, of a low-water content surfactant mixture which is pourable and pumpable at ambient conditions, said surfactant mixture having a water content of less than about 20% by weight and consisting of: 1. from about 50 to about 65% by weight of a C 12 -C 18 fatty alcohol ethoxylate containing an average of about 10 moles of ethylene oxide which is a solid at room temperature and has a melting point of about 30° C.; 2. from about 5 to about 15% by weight of an alkali metal salt of a C 16 -C 18 tallow alcohol sulfate which is a solid room at temperature and has a melting point of from about 55° to about 60° C.; 3. from about 4 to about 15% by weight of a C 12 -C 16 alkane sulfonate alkali metal salt or the disodium salt of n-octyl sulfosuccinate which is a solid at room temperature; and 4. from about 5 to about 13% by weight of a free C 16 -C 18 fatty acid having a melting point of about 55° C., based on the weight of said surfactant mixture.
Claim 11
Dependent Claim
22 words
A process in accordance with claim 6 wherein said water content in said surfactant mixture is less than about 15% by weight.
Claim 12
Dependent Claim
110 words
A process in accordance with claim 6 wherein said surfactant mixture consists of: 1. from about 57 to about 62% by weight of said C 12 -C 18 fatty alcohol ethoxylate containing an average of about 10 moles of ethylene oxide; 2. from about 7 to about 10% by weight of said alkali metal salt of a C 16 -C 18 tallow alcohol sulfate; 3. from about 8 to about 12% by weight of said C 12 -C 16 alkane sulfonate alkali metal salt and/or said disodium salt of n-octyl sulfosuccinate; and 4. from about 6 to about 10% by weight of said free C 16 -C 18 fatty acid.
Claim 13
Dependent Claim
22 words
A process in accordance with claim 8 wherein said water content in said surfactant mixture is less than about 15% by weight.
Claim 14
Dependent Claim
102 words
A process in accordance with claim 6 wherein said surfactant mixture consists of: 1. about 60% by weight of said C 12 -C 18 fatty alcohol ethoxylate containing an average o fabout 10 moles of ethylene oxide; 2. from about 8.5 to about 9% by weight of said alkali metal salt of a C 16 -C 18 tallow alcohol sulfate; 3. from about 9 to about 10% by weight of said C 12 -C 16 alkane sulfonate alkali metal salt and/or said disodium salt of n-octyl sulfosuccinate; and 4. about 8% by weight of said free C 16 -C 18 fatty acid.
Claim 15
Dependent Claim
214 words
A free-flowing, powder detergent composition prepared by spray-mixing preformed powder detergent components with up to about 20% by weight, based on the weight of said detergent composition, of a low-water content surfactant mixture which is pourable and pumpable at ambient conditions, said surfactant mixture having a water content of less than about 20% by weight and consisting of: 1. from about 50 to about 65% by weight of a C 12 -C 18 fatty alcohol ethoxylate containing an average of about 10 moles of ethylene oxide which is a solid at room temperature and has a melting point of about 30° C.; 2. from about 5 to about 15% by weight of an alkali metal salt of a C 16 -C 18 tallow alcohol sulfate which is a solid at room temperature and has a melting point of from about 55° to about 60° C.; 3. from about 4 to about 15% by weight of a C 12 -C 16 alkane sulfonate alkali metal salt or the disodium salt of n-octyl sulfosuccinate which is a solid at room temperature; and 4. from about 5 to about 13% by weight of a free C 16 -C 18 fatty acid having a melting point of about 55° C., based on the weight of said surfactant mixture.
Claim 16
Dependent Claim
214 words
A free-flowing, powder detergent composition prepared by spray-mixing preformed powder detergent components with up to about 20% by weight, based on the weight of said detergent composition, of a low-water content surfactant mixture which is pourable and pumpable at ambient conditions, said surfactant mixture having a water content of less than about 20% by weight and consisting of: 1. from about 50 to about 65% by weight of a C 12 -C 18 fatty alcohol ethoxylate containing an average of about 10 moles of ethylene oxide which is a solid at room temperature and has a melting point of about 30° C.; 2. from about 5 to about 15% by weight of an alkali metal salt of a C 16 -C 18 tallow alcohol sulfate which is a solid at room temperature and has a melting point of from about 55° to about 60° C.; 3. from about 4 to about 15% by weight of a C 12 -C 16 alkane sulfonate alkali metal salt or the disodium salt of n-octyl sulfosuccinate which is a solid at room temperature; and 4. from about 5 to about 13% by weight of a free C 16 -C 18 fatty acid having a melting point of about 55° C., based on the weight of said surfactant mixture.
Claim 17
Dependent Claim
23 words
A detergent composition in accordance with claim 11 wherein said water content in said surfactant mixture is less than about 15% by weight.
Claim 18
Dependent Claim
111 words
A detergent composition in accordance with claim 11 wherein said surfactant mixture consists of: 1. from about 57 to about 62% by weight of said C 12 -C 18 fatty alcohol ethoxylate containing an average of about 10 moles of ethylene oxide; 2. from about 7 to about 10% by weight of said alkali metal salt of a C 16 -C 18 tallow alcohol sulfate; 3. from about 8 to about 12% by weight of said C 12 -C 16 alkane sulfonate alkali metal salt and/or said disodium salt of n-octyl sulfosuccinate; and 4. from about 6 to about 10% by weight of said free C 16 -C 18 fatty acid.
Claim 19
Dependent Claim
23 words
A detergent composition in accordance with claim 13 wherein said water content in said surfactant mixture is less than about 15% by weight.
Claim 20
Dependent Claim
14 words
A detergent composition in accordance with claim 11 wherein said surfactant mixture consists of:
Claim 21
Dependent Claim
88 words
about 60% by weight of said C 12 -C 18 fatty alcohol ethoxylate containing an average of about 10 moles of ethylene oxide; 2. from about 8.5 to about 9% by weight of said alkali metal salt of a C 16 -C 18 tallow alcohol sulfate; 3. from about 9 to about 10% by weight of said C 12 -C 16 alkane sulfonate alkali metal salt and/or said disodium salt of n-octyl sulfosuccinate; and 4. about 8% by weight of said free C 16 -C 18 fatty acid.
Claim 22
Dependent Claim
88 words
about 60% by weight of said C 12 -C 18 fatty alcohol ethoxylate containing an average of about 10 moles of ethylene oxide; 2. from about 8.5 to about 9% by weight of said alkali metal salt of a C 16 -C 18 tallow alcohol sulfate; 3. from about 9 to about 10% by weight of said C 12 -C 16 alkane sulfonate alkali metal salt and/or said disodium salt of n-octyl sulfosuccinate; and 4. about 8% by weight of said free C 16 -C 18 fatty acid.
Claim 23
Dependent Claim
29 words
A detergent composition in accordance with claim 11 wherein said preformed powder detergent components comprise a conventional builder selected from the group consisting of sodium tripolyphosphate and zeolite NaA.
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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) | 1992-04-10 | 1992-10-10 | 1993-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-10 | 1996-10-10 | 1997-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-10 | 2000-10-10 | 2001-04-11 | $7700.00 | Window Closed / Lapsed |