US3741903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detergent compositions
Assignee: Lever Brothers Co
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Filing: 1971-12-08
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Granted: 1973-06-26
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Expires: 1991-12-08
Abstract
Abstract A detergent composition of the low temperature bleaching type comprises an inorganic persalt, for example sodium perborate, an inorganic peracid precursor, for example N,N,N'',N-tetraacetyl ethylene diamine, a cotton substantive fluorescent agent of the 4,4''-di(sym-triazinylamino)-stilbene-2,2''-disulphonate type and not more than 0.001 per cent of a triazine derivative of specified formula. The compositions have a decreased tendency to discolor and form molodours during storage.
Inventors
- 👤 J Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:43
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/39; C11D3/3902; C11D3/3905; C11D3/3907; C11D3/16; C11D3/38; C11D3/386; C11D3/38609; C11D3/40; C11D3/42; D; D06; D06L; D06L4/00; D06L4/60; D06L4/664
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
27 words
A detergent composition according to claim 1, wherein said inorganic persalt is selected from the group consisting of sodium perborate, sodium percarbonate, sodium perpyrophosphate and sodium persilicate.
Claim 2
Dependent Claim
40 words
A detergent composition according to claim 1, wherein said organic peracid precursor is selected from the group consisting of sodium acetoxybenzene sulphonate, chloracetoxy salicylic acid, triacetylcyanurate, N,N,N'',N'' -tetraacetyl ethylene diamine, N-acetyl imidazole, N-benzoyl imidazole, N,N''-diacetyl barbitone, N,N''-diacetyl-5,5-dimethylhydantoin and N,N,N'',N''-tetraacetyl glycoluril.
Claim 3
Dependent Claim
25 words
A detergent composition according to claim 1, wherein said detergent-active compound is from about 5 to about 30 percent by weight of said detergent composition.
Claim 4
Dependent Claim
25 words
A detergent composition according to claim 1, wherein said inorganic persalt is from about 5 to about 20 percent by weight of said detergent composition.
Claim 5
Dependent Claim
26 words
A detergent composition according to claim 1, wherein said organic peracid precursor is from about 5 to about 20 percent by weight of said detergent composition.
Claim 6
Dependent Claim
25 words
A detergent composition according to claim 1, wherein said fluorescent agent is from about 0.1 to about 2 percent by weight of said detergent composition.
Claim 7
Dependent Claim
15 words
A detergent composition according to claim 1, which additionally incorporates a cobalt chelate of 1,10-phenanthroline.
Claim 8
Dependent Claim
25 words
A detergent composition according to claim 1, which additionally incorporates a protease enzyme in an amount of from 5 to 20 Anson units per kilogram.
References Cited (Backward Citations)
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US3177148A
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Cited
US3522634A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |