US3110712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for removing thiol-contaminants from thioether solutions
Assignee: Eastman Kodak Co
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Filing: 1960-09-02
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Granted: 1963-11-12
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Expires: 1980-09-02
Abstract
No abstract record available.
Inventors
- 👤 Martha A Hill
- 👤 Albert E Ballard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:26
CPC Classifications
C; C07; C07D; C07D277/00; C07D277/02; C07D277/20; C07D277/32; C07D277/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
THE PROCESS FOR TREATING A THIOL-CONTAMINATED ACETONE SOLUTION OF 5-BENZYLIDENE-3-HEXADECYL-2-PHENYLIMINO4-THIAZOLIDONE CONTAINING UP TO 200 PARTS PER MILLION BASED ON THE WEIGHT OF THE SAI THIAZOLIDONE OF 1-CETYL-3PHENYL-I-THIOUREA AS A CONTAMINANT WHICH COMPRISES PASSING SAID ACETONE SOLUTION THROUGH A BED CONTAINING SILVER OXIDE SUPPORTED ON ADIATOMACEOIUS EARTH, CHEMICALLY REACTING SUBSTANTIALLY ALL OF SAID CONTAMINANT WITH SAID SILVER OXIDE TO FORM A SILVER DERIVATIVE SUBSTANTIALLY INSOLUBLE IN SAID ACETONE SOLUTION, AND SEPARATING BY FILTRATION SAID DERIVATIVE FROM THE RESULTING ACETONE SOLUTION OF THE SAID THIAZOLIDONE.
Claim 2
Dependent Claim
83 words
THE PROCESS FOR TREATING A THIOL-CONTAMINATED ACETONE SOLUTION OF 5-BENZYLIDENE-3-HEXADECYL-2-PHENYLIMINO4-THIAZOLIDONE CONTAINING UP TO 200 PARTS PER MILLION BASED ON THE WEIGHT OF THE SAI THIAZOLIDONE OF 1-CETYL-3PHENYL-I-THIOUREA AS A CONTAMINANT WHICH COMPRISES PASSING SAID ACETONE SOLUTION THROUGH A BED CONTAINING SILVER OXIDE SUPPORTED ON ADIATOMACEOIUS EARTH, CHEMICALLY REACTING SUBSTANTIALLY ALL OF SAID CONTAMINANT WITH SAID SILVER OXIDE TO FORM A SILVER DERIVATIVE SUBSTANTIALLY INSOLUBLE IN SAID ACETONE SOLUTION, AND SEPARATING BY FILTRATION SAID DERIVATIVE FROM THE RESULTING ACETONE SOLUTION OF THE SAID THIAZOLIDONE.
References Cited (Backward Citations)
US2364416A
Cited
US2791540A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-11 | 1967-05-13 | 1967-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-11 | 1971-05-13 | 1971-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-11 | 1975-05-13 | 1975-11-12 | $7700.00 | Window Closed / Lapsed |