US3676355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of 1,1,1,trichloroethane with oxazole
Assignee: Pechiney SA
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Filing: 1968-12-19
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Granted: 1972-07-11
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Expires: 1988-12-19
Abstract
Abstract 1,1,1, TRICHLORETHANE, AN INDUSTRIAL SOLVENT, IS STABILIZED TO PREVENT ITS REACTION WITH METALS BY THE ADDITION THERETO OF FROM ABOUT 0.2 PERCENT TO 10 PERCENT OF A STABILIZING AGENT COMPRISING OXAZOLE EITHER ALONE OR IN COMBINATION WITH ONE OR MORE OTHER STABILIZERS HAVING A BOILING POINT IN THE RANGE FROM 40* C. to 200* C. and having a molecular structure which comprises at least one of the molecular groups consisting of ethylenic bond, acetylenic bond, acetal, ketone, alcohol, nitrile, amine, ester function, ether or tioether bond-bridge, nitrated group and 1,2epoxy group.
Inventors
- 👤 Jacques Vuillemenot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:50
CPC Classifications
C; C23; C23G; C23G5/00; C23G5/02; C23G5/028; C23G5/02854; C23G5/02883; C23G5/0289; C07; C07C; C07C17/00; C07C17/38; C07C17/42
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
22 words
An industrial solvent according to claim 1 wherein 2 to 6 percent of 1,1,1-trichloroethane by weight consists essentially of the stabilizing composition.
Claim 2
Dependent Claim
24 words
An industrial solvent according to claim 1 wherein the stabilizing composition contains 5 percent to 95 percent oxazole by weight of said stabilizing composition.
Claim 3
Dependent Claim
62 words
An industrial solvent according to claim 1 wherein the stabilizing composition consists essentially of: a. from 1 to 99 percent of oxazole by weight of said stabilizing composition; and b. from 1 to 99 percent by weight of said stabilizing composition, of a comPound selected from the group consisting of nitromethane, 1, 2 - epoxy - butane, ethyl acetate, and mixtures thereof.
Claim 4
Dependent Claim
61 words
An industrial solvent according to claim 1 wherein the stabilizing composition consists essentially of: a. from 1 to 99 percent of oxazole by weight of said stabilizing composition; and b. from 1 to 99 percent by weight of said stabilizing composition of a compound selected from the group consisting of nitromethane, 1, 2- epoxy - butane, tertiary butanol and mixtures thereof.
References Cited (Backward Citations)
US2517893A
Cited
US2947792A
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US3499047A
Cited
US2944088A
Cited
US3192273A
Cited
US3494968A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |