US4337164A
Expired / Lapsed
US
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Bleach composition
Assignee: Lever Brothers Co
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Filing: 1981-02-24
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Granted: 1982-06-29
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Expires: 2001-02-24
Abstract
Abstract A low temperature bleach system comprises an organic peracid and bromide ions in the absence of aldehydes and ketones. The bromide ions may be supplied from sodium bromide and typical peracids include diperisophthalic acid and monoperoxyphthalic acid. The peracid to bromide equivalent ration between 2:1 and 1:2 is preferred, but dye transfer and hygiene benefits are possible with a ratio up to 1:50. The system may be used as such or incorporated in a conventional detergent base.
Inventors
- 👤 Anthony H. Clements
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:47
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/39; C11D3/3945
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
117 words
A bleach composition consisting essentially of: (a) 0.1-40 parts by weight of an organic peracid having the general formula: ##STR3## wherein R is an alkylene group containing from 1-16 carbon atoms or an arylene group containing from 6-8 carbon atoms and Y is selected from the group consisting of hydrogen, halogen, alkyl, aryl, ##STR4## wherein M is hydrogen or a water soluble salt forming cation; and (b) 0.1-40 parts by weight of a water-soluble bromide salt which delivers bromide ions in aqueous media; the molar equivalent ratio of said organic peracid and said bromide salt being not more than 5:1, in the substantial absence of aldehydes, ketones and materials which yield aldehydes or ketones in aqueous solution.
Claim 2
Dependent Claim
117 words
A bleach composition consisting essentially of: (a) 0.1-40 parts by weight of an organic peracid having the general formula: ##STR3## wherein R is an alkylene group containing from 1-16 carbon atoms or an arylene group containing from 6-8 carbon atoms and Y is selected from the group consisting of hydrogen, halogen, alkyl, aryl, ##STR4## wherein M is hydrogen or a water soluble salt forming cation; and (b) 0.1-40 parts by weight of a water-soluble bromide salt which delivers bromide ions in aqueous media; the molar equivalent ratio of said organic peracid and said bromide salt being not more than 5:1, in the substantial absence of aldehydes, ketones and materials which yield aldehydes or ketones in aqueous solution.
Claim 3
Dependent Claim
19 words
A bleach composition according to claim 1, wherein said molar equivalent ratio is between about 1:3 and about 1:50.
Claim 4
Dependent Claim
19 words
A bleach composition according to claim 1, wherein said molar equivalent ratio is from about 5:1 and about 1:3.
Claim 5
Dependent Claim
19 words
A bleach composition according to claim 3, wherein said molar equivalent ratio is between about 2:1 and about 1:2.
Claim 6
Dependent Claim
27 words
A bleach composition according to claim 1, wherein the organic peracid is selected from the group consisting of monoperoxyphthalic acid, diperisophthalic acid, diperazelaic acid, and mixtures thereof.
Claim 7
Dependent Claim
174 words
A bleach composition consisting essentially of (a) 0.5-35 parts by weight of an organic peracid having the general formula ##STR5## wherein R is an alkylene group containing from 1-16 carbon atoms or an arylene group containing from 6-8 carbon atoms and Y is selected from the group consisting of hydrogen, halogen, alkyl, aryl ##STR6## wherein M is hydrogen or a water soluble salt forming cation; (b) 0.5-35 parts by weight of a water soluble bromide salt which delivers bromide ions in aqueous media; (c) 5-35 parts by weight of a water soluble organic detergent selected from the group consisting of organic synthetic anionic sulphonate of sulphate detergents, nonionic detergents, alkalimetal soaps of C 8 -C 22 fatty acids, and mixtures thereof, and (d) 10-60 parts by weight of a builder selected from the group consisting of weakly acid, neutral or alkaline reacting inorganic or organic compounds, inorganic or organic complex forming substances, aluminosilicates, and mixtures thereof, said composition being substantially free from aldehydes, ketones and materials which yield aldehydes or ketones in aqueous solution.
Claim 8
Dependent Claim
174 words
A bleach composition consisting essentially of (a) 0.5-35 parts by weight of an organic peracid having the general formula ##STR5## wherein R is an alkylene group containing from 1-16 carbon atoms or an arylene group containing from 6-8 carbon atoms and Y is selected from the group consisting of hydrogen, halogen, alkyl, aryl ##STR6## wherein M is hydrogen or a water soluble salt forming cation; (b) 0.5-35 parts by weight of a water soluble bromide salt which delivers bromide ions in aqueous media; (c) 5-35 parts by weight of a water soluble organic detergent selected from the group consisting of organic synthetic anionic sulphonate of sulphate detergents, nonionic detergents, alkalimetal soaps of C 8 -C 22 fatty acids, and mixtures thereof, and (d) 10-60 parts by weight of a builder selected from the group consisting of weakly acid, neutral or alkaline reacting inorganic or organic compounds, inorganic or organic complex forming substances, aluminosilicates, and mixtures thereof, said composition being substantially free from aldehydes, ketones and materials which yield aldehydes or ketones in aqueous solution.
References Cited (Backward Citations)
US3822114A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-06-28 | 1985-12-28 | 1986-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-28 | 1989-12-28 | 1990-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-28 | 1993-12-28 | 1994-06-29 | $7700.00 | Window Closed / Lapsed |