US4547305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low temperature bleaching detergent compositions comprising peracids and persalt activator
Assignee: Lever Brothers Co
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Filing: 1983-07-14
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Granted: 1985-10-15
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Expires: 2003-07-14
Abstract
Abstract Detergent compositions, particularly low temperature bleach detergent compositions comprising an inorganic persalt and an organic peracid precursor (persalt activator) or an organic peracid in lieu thereof, containing less than 10 mg/kg, preferably not more than 5 mg/kg of reactive titanium (IV), based on the total weight of the composition, are disclosed. These compositions show improved peracid stability, thereby improving the peracid concentration during the washing and cleaning operation to give enhanced bleaching results. The detergent compositions preferably contain a silicate.
Inventors
- 👤 Johannes M. Cornelissen
- 👤 Cornelis A. Lagerwaard
- 👤 Rudolf J. Martens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:44
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/08; C11D3/12; C11D3/124; C11D3/1246; C11D3/128; C11D3/39; C11D3/3902; C11D3/3905; C11D3/3932; C11D3/3945
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
47 words
Low temperature bleaching detergent compositions comprising about 3-30% by weight of a silicate, 2-35% by weight of an inorganic per-salt, 0.25 to 20% by weight of an organic peracid precursor and less than 10 mg/kg of reactive titanium (IV), based on the total weight of the composition.
Claim 2
Dependent Claim
47 words
Low temperature bleaching detergent compositions comprising about 3-30% by weight of a silicate, 2-35% by weight of an inorganic per-salt, 0.25 to 20% by weight of an organic peracid precursor and less than 10 mg/kg of reactive titanium (IV), based on the total weight of the composition.
Claim 3
Dependent Claim
17 words
Detergent compositions according to claim 1, which comprise not more than 5 mg/kg of reactive titanium (IV).
Claim 4
Dependent Claim
21 words
Detergent compositions according to claim 1, which comprise a silicate, selected from alkalimetal silicates, magnesium silicate and aluminosilicates and mixtures thereof.
Claim 5
Dependent Claim
41 words
Detergent compositions according to claim 1, which comprise a surfactant selected from the group consisting of anionic soap or non-soap detergents, nonionic, cationic, semi-polar, ampholytic and zwitterionic detergents and mixtures thereof at a level of from 0.1% to 60% by weight.
Claim 6
Dependent Claim
16 words
Detergent compositions according to claim 4, which comprise from 15% to 50% by weight of soap.
Claim 7
Dependent Claim
25 words
Detergent compositions according to claim 5, which comprise not more than 3 mg/kg of reactive titanium (IV), based on the total weight of the composition.
Claim 8
Dependent Claim
35 words
Low temperature bleaching detergent compositions comprising about 3-30% of a silicate, 2-35% by weight of an organic peracid and less than 10 mg/kg of reactive titanium (IV), based on the total weight of the composition.
Claim 9
Dependent Claim
35 words
Low temperature bleaching detergent compositions comprising about 3-30% of a silicate, 2-35% by weight of an organic peracid and less than 10 mg/kg of reactive titanium (IV), based on the total weight of the composition.
Claim 10
Dependent Claim
20 words
Detergent compositions according to claim 1, which comprise an organic peracid in lieu of said inorganic persalt/organic peracid precursor system.
Claim 11
Dependent Claim
17 words
Detergent compositions according to claim 7, which comprise not more than 5 mg/kg of reactive titanium (IV).
Claim 12
Dependent Claim
21 words
Detergent compositions according to claim 7, which comprise a silicate, selected from alkalimetal silicates, magnesium silicate and aluminosilicates and mixtures thereof.
Claim 13
Dependent Claim
41 words
Detergent compositions according to claim 7, which comprise a surfactant selected from the group consisting of anionic soap or non-soap detergents, nonionic, cationic, semi-polar, ampholytic and zwitterionic detergents and mixtures thereof at a level of from 0.1% to 60% by weight.
Claim 14
Dependent Claim
16 words
Detergent compositions according to claim 11, which comprise from 15% to 50% by weight of soap.
Claim 15
Dependent Claim
25 words
Detergent compositions according to claim 12, which comprise not more than 3 mg/kg of reactive titanium (IV), based on the total weight of the composition.
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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) | 1988-10-14 | 1989-04-15 | 1989-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-14 | 1993-04-15 | 1993-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-14 | 1997-04-15 | 1997-10-15 | $7700.00 | Window Closed / Lapsed |