Patent US4221675A successfully refreshed from Google Patents.
US4221675A
Expired / Lapsed
US
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Percompound activators
Assignee: Produits Chimiques Ugine Kuhlmann
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Filing: 1978-05-23
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Granted: 1980-09-09
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Expires: 1998-05-23
Abstract
Abstract Percompound activators comprising alpha -acyloxy-N-acylacetamides having the formula <IMAGE> where R1, R2, R3, R4, and R5 are hydrogen or hydrocarbon radicals optionally substituted by other groups, used to activate percompounds in oxidizing and bleaching of textile fibers, oils, fats, and waxes, for cosmetic hair and skin treatment, metal surface passivation, purification, disinfection, and sterilization, the activators providing more rapid action at a given temperature and being useful at lower temperatures.
Inventors
- 👤 Jean-Pierre Schirmann
- 👤 Bernard Dubreux
- 👤 Michel Bakes
- 👤 Serge Y. Delavarenne
- 👤 Marie-Christine Daude-Lagrave
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:32
CPC Classifications
C; C07; C07C; C07C235/00; C07C235/88; C11; C11D; C11D3/00; C11D3/39; C11D3/3902; C11D3/3905; C11D3/3907; C11D3/3917; C07C237/00; C07C237/52
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
22 words
Activated compositions comprising a percompound and at least one α-acyloxy-N-acetylacylamide activator which is 2-acetoxy-N-acetylacetamide, 2-acetoxy-N-acetylpropionamide, 2-acetoxy-N-acetylbutyramide, 2-acetoxy-N-acetylisobutyramide, 2-acetoxy-2-methyl-N-acetylburyramide, 2-acetoxy-2-isobutyl-N-acetylpropionamide, or 1-acetoxy-N-acetylcyclohexane carboxamide.
Claim 2
Dependent Claim
22 words
Activated compositions comprising a percompound and at least one α-acyloxy-N-acetylacylamide activator which is 2-acetoxy-N-acetylacetamide, 2-acetoxy-N-acetylpropionamide, 2-acetoxy-N-acetylbutyramide, 2-acetoxy-N-acetylisobutyramide, 2-acetoxy-2-methyl-N-acetylburyramide, 2-acetoxy-2-isobutyl-N-acetylpropionamide, or 1-acetoxy-N-acetylcyclohexane carboxamide.
Claim 3
Dependent Claim
17 words
An activated composition according to claim 1 wherein the oxidizer is hydrogen peroxide or its addition compounds.
Claim 4
Dependent Claim
22 words
An activated composition according to claim 1 wherein the oxidizer is a percompound which is a perborate, a percarbonate, or a perphosphate.
Claim 5
Dependent Claim
20 words
An activated composition according to claim 1 wherein the molar ratio of activator to oxidizer is from 0.1 to ten.
Claim 6
Dependent Claim
19 words
An activated composition according to claim 1 wherein the molar ratio of activator to percompound oxidizer is about 0.33.
Claim 7
Dependent Claim
10 words
A detergent composition containing an activator according to claim 1.
Claim 8
Dependent Claim
31 words
A method for activating percompounds which comprise incorporating with the percompound a small quantity of at least one activator according to claim 1 effective to improve the activ of the percompound.
Claim 9
Dependent Claim
19 words
A composition according to claim 1 wherein the activator is 2-acetoxy-N-acetylacetamide, 2-acetoxy-N-acetylpropionamide, 2-acetoxy-N-acetylbutyramide, 2-acetoxy-N-acetylisobutyramide, 2-acetoxy-2-methyl-N-acetylbutyramide, 2-acetoxy-2-isobutyl-N-acetylpropionamide, or 1-acetoxy-N-acetylcyclohexane carboxamide.
References Cited (Backward Citations)
US2290881A
Cited
US2477816A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-09-09 | 1984-03-10 | 1984-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-09 | 1988-03-10 | 1988-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-09 | 1992-03-10 | 1992-09-09 | $7700.00 | Window Closed / Lapsed |