US4154694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detergent compositions
Assignee: Lever Brothers Co
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Filing: 1978-06-05
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Granted: 1979-05-15
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Expires: 1998-06-05
Abstract
Abstract A pourable liquid detergent composition, particularly one containing hypochlorite, comprises an aqueous detergent solution having a yield stress value at 20° C. of from 1 to 21 dynes/cm 2 , and dispersed solid particles of a sparingly water-soluble alkaline buffer, particularly calcium or magnesium hydroxide, providing a pH within the range of from 10 to 13.
Inventors
- 👤 Robert Donaldson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:03
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/12; C11D3/1213; C11D1/00; C11D1/66; C11D1/83; C11D17/00; C11D17/0008; C11D17/0013; C11D17/0026; C11D3/0005; C11D3/0047; C11D3/395; C11D3/3956; C11D1/02; C11D1/12; C11D1/14; C11D1/75; C11D1/755; C11D1/79
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
160 words
A pourable liquid detergent composition comprising an aqueous detergent solution having a yield stress value at 20° C. of 1 to 21 dynes/cm 2 and a buffering amount of solid particles of an alkaline buffer having a solubility in water at 20° C. of 0.0005 to 0.2 parts by weight in 100 parts by weight of water and providing a pH of 10 to 13 dispersed in the solution and retained in the dispersed state by the yield value characteristics of said solution in which the aqueous detergent solution contains an alkali metal C 12 to C 18 alkyl sulphate together with a trialkylamine oxide, trialkylphosphine oxide or dialkylsulphoxide detergent-active compound in the presence of an electrolyte with a univalent or divalent cation, and a three-dimensional network of insoluble entangled filaments, these ingredients being in such amounts as to provide a viscosity at 20° C. of from 1 to 60 poise at a shear rate of 7 sec -1 .
Claim 2
Dependent Claim
160 words
A pourable liquid detergent composition comprising an aqueous detergent solution having a yield stress value at 20° C. of 1 to 21 dynes/cm 2 and a buffering amount of solid particles of an alkaline buffer having a solubility in water at 20° C. of 0.0005 to 0.2 parts by weight in 100 parts by weight of water and providing a pH of 10 to 13 dispersed in the solution and retained in the dispersed state by the yield value characteristics of said solution in which the aqueous detergent solution contains an alkali metal C 12 to C 18 alkyl sulphate together with a trialkylamine oxide, trialkylphosphine oxide or dialkylsulphoxide detergent-active compound in the presence of an electrolyte with a univalent or divalent cation, and a three-dimensional network of insoluble entangled filaments, these ingredients being in such amounts as to provide a viscosity at 20° C. of from 1 to 60 poise at a shear rate of 7 sec -1 .
Claim 3
Dependent Claim
25 words
A composition according to claim 1, in which the aqueous detergent solution contains hypochlorite corresponding to from 0.02 to 5% by weight of sodium hypochlorite.
Claim 4
Dependent Claim
30 words
A composition according to claim 2, in which the alkali metal C 12 to C 8 alkyl sulphate is sodium lauryl sulphate and the oxide detergent-active compound is dimethyllaurylamine oxide.
Claim 5
Dependent Claim
14 words
A composition according to claim 3, in which the filaments are of sodium stearate.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-05-14 | 1982-11-13 | 1983-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-14 | 1986-11-13 | 1987-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-14 | 1990-11-13 | 1991-05-15 | $7700.00 | Window Closed / Lapsed |