Patent US4040989A successfully refreshed from Google Patents.
US4040989A
Expired / Lapsed
US
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Liquid detergent
Assignee: Colgate Palmolive Co
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Filing: 1974-05-13
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Granted: 1977-08-09
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Expires: 1994-05-13
Abstract
Abstract A liquid detergent, suitable for hand dishwashing and of excellent washing properties which produces a medium foam that is long lasting in the presence of greasy soil and which comprises a ternary mixture of an anionic detergent which is a paraffin sulfonate or linear alkyl benzene sulfonate or a mixture thereof; a nonionic detergent which is either a condensate of higher fatty alcohol with a heteric mixture of ethylene and propylene oxides or a lower alkyl ether of an alkyl phenoxy polyethoxy lower alkanol or a mixture thereof; and an alkanoic acid alkanolamide in water. The liquid is in concentrated form, containing at least 35% by weight of the ternary mixture.
Inventors
- 👤 Jean Renaud
- 👤 Jean-Paul Narcy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:13
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/0005; C11D3/0026; C11D1/00; C11D1/86; C11D3/16; C11D3/38; C11D3/384; C11D1/02; C11D1/12; C11D1/14; C11D1/22; C11D1/38; C11D1/52; C11D1/523; C11D1/66; C11D1/72; C11D1/722
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
199 words
A liquid dishwashing detergent having a medium or medium-low foam volume that is stable in the presence of grease soil which consists essentially of: a. a detergent selected from the group consisting of 25% to 40% by weight of a water-soluble C 10 -C 20 paraffin sulfonate, 15% to 30% by weight of a water-soluble linear C 8 -C 15 alkyl benzene sulfonate, and 20% to 40% by weight of a mixture thereof; b. 5% to 30% by weight of a nonionic detergent selected from the group consisting of a condensate of C 10 -C 16 alkanol with a heteric mixture of ethylene oxide and propylene oxide in a weight ratio from 2.5:1 to 4:1 respectively, said condensate having a 60 to 85% content of ethylene oxide and propylene oxide, a C 2 -C 6 alkyl ether of an ethoxylated C 6 -C 10 alkyl phenol having 9 to 14 ethenoxy groups, and mixtures thereof; c. 1% to 8% by weight of a C 1 -C 3 alkanolamide of a C 10 -C 16 alkanoic acid; and d. an aqueous medium; the total content of (a), (b), and (c) being from 35 to 50% by weight of the composition.
Claim 2
Dependent Claim
199 words
A liquid dishwashing detergent having a medium or medium-low foam volume that is stable in the presence of grease soil which consists essentially of: a. a detergent selected from the group consisting of 25% to 40% by weight of a water-soluble C 10 -C 20 paraffin sulfonate, 15% to 30% by weight of a water-soluble linear C 8 -C 15 alkyl benzene sulfonate, and 20% to 40% by weight of a mixture thereof; b. 5% to 30% by weight of a nonionic detergent selected from the group consisting of a condensate of C 10 -C 16 alkanol with a heteric mixture of ethylene oxide and propylene oxide in a weight ratio from 2.5:1 to 4:1 respectively, said condensate having a 60 to 85% content of ethylene oxide and propylene oxide, a C 2 -C 6 alkyl ether of an ethoxylated C 6 -C 10 alkyl phenol having 9 to 14 ethenoxy groups, and mixtures thereof; c. 1% to 8% by weight of a C 1 -C 3 alkanolamide of a C 10 -C 16 alkanoic acid; and d. an aqueous medium; the total content of (a), (b), and (c) being from 35 to 50% by weight of the composition.
Claim 3
Dependent Claim
62 words
A clear liquid detergent according to claim 1 consisting essentially of from 15 to 30% by weight of sodium linear alkyl benzene sulfonate, 15 to 30% by weight of tertiary butyl ether of tertiary octyl phenoxy polyethoxy ethanol, 2 to 5% by weight of lauric myristic monoethanolamide, 2 to 8% by weight of urea and 1 to 5% by weight of ethanol.
Claim 4
Dependent Claim
119 words
A liquid detergent according to claim 1 wherein at least 80% of the paraffin sulfonate is of 12 to 18 carbon atoms, at least 80% of the alkyl group of the linear alkyl benzene sulfonate is of 9 to 13 carbon atoms, the anionic detergent is present as a salt or mixture of salts of alkali metal, ammonia, monoethanolamine, diethanolamine and triethanolamine, the alkanol-ethylene oxide-propylene oxide condensate has an alkylene oxide content of 70 to 80%, the lower alkyl of the lower alkyl ether of ethoxylated alkyl phenol is of 3 to 5 carbon atoms and the alkyl is of 7 to 9 carbon atoms, and the alkanoic acid of the alkanolamide is of 12 to 14 carbon atoms.
Claim 5
Dependent Claim
70 words
A liquid detergent according to claim 3 wherein at least 80% of the paraffin sulfonate is of 14 to 17 carbon atoms, at least 80% of the alkyl group of the linear alkyl benzene sulfonate is of 10 to 12 carbon atoms, the anionic detergent is present as an alkali metal salt, and the alkanol-ethylene oxide-propylene oxide condensate has at least 80% of alkanol of 12 to 15 carbon atoms.
Claim 6
Dependent Claim
44 words
A liquid detergent according to claim 3 wherein said aqueous medium includes up to 20% by weight of a solubilizer selected from the group consisting of urea, C 2 -C 3 alcohol, C 1 -C 3 alkyl substituted benzene sulfonate hydrotropes, and mixtures thereof.
Claim 7
Dependent Claim
32 words
A liquid detergent according to claim 5 which includes in addition 0.5 to 3% by weight of a water soluble protein hydrolysate having an average molecular weight of about 500 to 10,000.
Claim 8
Dependent Claim
121 words
A liquid detergent according to claim 6 consisting essentially of 25 to 40% by weight of sodium paraffin sulfonate having an average molecular weight of 300 to 350, 5 to 15% by weight of alkanol-ethylene oxide-propylene oxide condensate having an ethylene oxide: propylene oxide weight ratio of about 3:1, 2 to 5% weight of lauric myristic monoethanolamide, and 2 to 8% by weight of urea, and includes, in addition, 2 to 5% by weight of magnesium sulfate heptahydrate and 5 to 15% of a pearlizing mixture of C 10 -C 18 fatty acid ester of polyethoxy ethanol containing 1 to 20 moles of ethylene oxide, C 8 -C 18 fatty acid C 2 -C 3 alkanolamide and sodium lauryl ether sulfate.
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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) | 1980-08-08 | 1981-02-07 | 1981-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-08 | 1985-02-07 | 1985-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-08 | 1989-02-07 | 1989-08-09 | $7700.00 | Window Closed / Lapsed |