US3975153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Activation of peroxygen bleaches using isophorone enol acetates and isophorone oximinoacetate
Assignee: FMC Corp
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Filing: 1975-08-25
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Granted: 1976-08-17
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Expires: 1995-08-25
Abstract
Abstract Peroxygen chemicals are activated, in laundering operations conducted below 80°C, by using as activators certain isophorone derivatives, to wit, the isophorone enol acetates and isophorone oximinoacetate.
Inventors
- 👤 Harry Dounchis
- 👤 Fui-Tseng H. Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:35
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/39; C11D3/3902; C11D3/3905; C11D3/3907; C11D3/3917; C11D3/392; D; D06; D06L; D06L4/00; D06L4/10; D06L4/12
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
100 words
In the method of simultaneously laundering and bleaching fabrics in which the operation is carried out above ambient temperatures and below 80°C and the bleaching is effected with a peroxygen compound which yields peroxide ion in the laundering bath and an activator therefor which sharply increases the activity of said peroxygen compound at these temperatures, the improvement which consists in using as the activator at least one-half mol, per mol of active oxygen compound, of an isophorone derivative of the group consisting of isophorone enol acetates and isophorone oximinoacetate, the activators being characterized by low odor, toxicity and skin-irritating properties.
Claim 2
Dependent Claim
100 words
In the method of simultaneously laundering and bleaching fabrics in which the operation is carried out above ambient temperatures and below 80°C and the bleaching is effected with a peroxygen compound which yields peroxide ion in the laundering bath and an activator therefor which sharply increases the activity of said peroxygen compound at these temperatures, the improvement which consists in using as the activator at least one-half mol, per mol of active oxygen compound, of an isophorone derivative of the group consisting of isophorone enol acetates and isophorone oximinoacetate, the activators being characterized by low odor, toxicity and skin-irritating properties.
Claim 3
Dependent Claim
18 words
The method of claim 1, in which the molar ratio of activator to peroxygen compound is about 1/1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-17 | 1980-02-16 | 1980-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-17 | 1984-02-16 | 1984-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-17 | 1988-02-16 | 1988-08-17 | $7700.00 | Window Closed / Lapsed |