Patent US6353605B1 successfully refreshed from Google Patents.
US4488980A
Expired / Lapsed
US
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Detergent compositions
Assignee: Lever Brothers Co
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Filing: 1983-12-08
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Granted: 1984-12-18
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Expires: 2003-12-08
Abstract
Abstract Built detergent bleach compositions are disclosed comprising a surface-active agent, a peroxide compound bleach (e.g. sodium perborate), a manganese compound which delivers manganese (II) ions in aqueous solution (e.g. manganous sulphate or manganous chloride) and a builder mixture comprising a condensed phosphate and an alkalimetal orthophosphate in a weight ratio of from 10:1 to 1:60, preferably from 5:1 to 1:30. The composition is particularly effective for washing fabrics at low temperature, e.g. from 20 DEG -60 DEG C., but is also usable at higher temperatures.
Inventors
- 👤 John Oakes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:19
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/39; C11D3/3902; C11D3/3905; C11D3/3932
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
89 words
A built detergent bleach composition comprising from 2-50% by weight of a surface-active agent selected from anionic, nonionic, zwitterionic and cationic detergents and mixtures thereof; 4-50% by weight of a peroxide compound bleach; 5-80% by weight of a builder mixture comprising essentially a condensed phosphate and an alkalimetal orthophosphate in a weight ratio of from 10:1 to 1:60, and a manganese compound which delivers manganese (II) ions in aqueous solution, in an amount of 0.005 to 2.5% by weight as manganese (II) metal based on the total detergent composition.
Claim 2
Dependent Claim
89 words
A built detergent bleach composition comprising from 2-50% by weight of a surface-active agent selected from anionic, nonionic, zwitterionic and cationic detergents and mixtures thereof; 4-50% by weight of a peroxide compound bleach; 5-80% by weight of a builder mixture comprising essentially a condensed phosphate and an alkalimetal orthophosphate in a weight ratio of from 10:1 to 1:60, and a manganese compound which delivers manganese (II) ions in aqueous solution, in an amount of 0.005 to 2.5% by weight as manganese (II) metal based on the total detergent composition.
Claim 3
Dependent Claim
22 words
A composition according to claim 1, wherein said manganese compound is a manganese (II) salt, selected from manganous sulphate and manganous chloride.
Claim 4
Dependent Claim
17 words
A composition according to claim 1, which contains 0.025 to 1.0% by weight of manganese (II) metal.
Claim 5
Dependent Claim
22 words
A composition according to claim 1, wherein the ratio by weight of condensed phosphate to alkalimetal orthophosphate is from 5:1 to 1:30.
Claim 6
Dependent Claim
24 words
A composition according to claim 4, wherein said condensed phosphate and alkalimetal orthophosphate are present in a weight ratio of from 1:1 to 1:30.
References Cited (Backward Citations)
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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) | 1987-12-18 | 1988-06-18 | 1988-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-18 | 1992-06-18 | 1992-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-18 | 1996-06-18 | 1996-12-18 | $7700.00 | Window Closed / Lapsed |