US2662086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing hydrolytic condensation product of dichlorodipropyl sulfide in aqueous hydrogen chloride and condensation product resulting therefrom
Assignee: Standard Oil Co
•
Filing: 1948-04-19
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Granted: 1953-12-08
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Expires: 1968-04-19
Abstract
No abstract record available.
Inventors
- 👤 Everett C Hughes
- 👤 Veatch Franklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:04
CPC Classifications
C; C07; C07D; C07D327/00; C07D327/02; C07D327/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A METHOD FOR PREPARING DIMETHYL THIOXANE AND AN OXYGEN-CONTAINING HYDROLYTIC CONDENSATION PRODUCT WHICH COMPRISES REACTING PROPYLENE AND SULFUR MONOCHLORIDE AT A TEMPERATURE AT WHICH THE REACTION PROCEEDS AND BELOW THAT AT WHICH THE DICHLORODIPROPYL SULFIDE WOULD BE DECOMPOSED NOT EXCEEDING 50* C. TO PRODUCE DICHLORODIPROPYL SULFIDE AND THEN MIXING AND HEATING THE DICHLORODIPROPYL SULFIDE IN THE LIQUID PHASE WITH AQUEOUS HYDROCHLORIC ACID IN THE LIQUID PHASE TO EFFECT A LIQUID PHASE HYDROLYSIS OF THE DICHLORODIPROPYL SULFIDE AND FORM A LIQUID PHASE COMPRISING DIMETHYL THIOXANE AND THE HYDROLYTIC CONDENSATION PRODUCT IN CONTACT WITH THE AQUEOUS HYDROGEN CHLORIDE.
Claim 2
Independent Claim
96 words
A METHOD FOR PREPARING DIMETHYL THIOXANE AND AN OXYGEN-CONTAINING HYDROLYTIC CONDENSATION PRODUCT WHICH COMPRISES REACTING PROPYLENE AND SULFUR MONOCHLORIDE AT A TEMPERATURE AT WHICH THE REACTION PROCEEDS AND BELOW THAT AT WHICH THE DICHLORODIPROPYL SULFIDE WOULD BE DECOMPOSED NOT EXCEEDING 50* C. TO PRODUCE DICHLORODIPROPYL SULFIDE AND THEN MIXING AND HEATING THE DICHLORODIPROPYL SULFIDE IN THE LIQUID PHASE WITH AQUEOUS HYDROCHLORIC ACID IN THE LIQUID PHASE TO EFFECT A LIQUID PHASE HYDROLYSIS OF THE DICHLORODIPROPYL SULFIDE AND FORM A LIQUID PHASE COMPRISING DIMETHYL THIOXANE AND THE HYDROLYTIC CONDENSATION PRODUCT IN CONTACT WITH THE AQUEOUS HYDROGEN CHLORIDE.
References Cited (Backward Citations)
US2411275A
Cited
US2508005A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-07 | 1957-06-08 | 1957-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-07 | 1961-06-08 | 1961-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-07 | 1965-06-08 | 1965-12-08 | $7700.00 | Window Closed / Lapsed |