US2853480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of sulfochlorinating dialkyl polysulfide-olefin mixtures
Assignee: Standard Oil Co
•
Filing: 1954-05-28
•
Granted: 1958-09-23
•
Expires: 1974-05-28
Abstract
No abstract record available.
Inventors
- 👤 Albert W Lindert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:41
CPC Classifications
C; C10; C10M; C10M135/00; C10M135/20; C10M135/22; C10M2219/00; C10M2219/08; C10M2219/082; C10N; C10N2030/00; C10N2030/06; C10N2070/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A METHOD OF INCREASING THE FLASH POINT, WITHOUT SUBSTANTIALLY REDUCING THE YEILD, OF CRUDE ALKYL POLYSULFIDE MIXTURES COMPRISING AT LEAST ABOUT 70% BY WEIGHT OF DIALKYL POLYSULFIDES AND A LOWER BOILING HYDROCARBON MATERIAL COMPRISING OLEFINIC CONSTITUENTS FROM WHICH THE RAW MATERIALS EMPLOYED IN THE POLYSULFIDE SYNTHESIS HAVE BEEN DERIVED, WHICH METHOD COMPRISES SULFOCHLORINATING SAID CRUDE ALKYL POLYSULFIDE MIXTURE WITH FROM ABOUT 10% TO ABOUT 25% BY VOLUME OF A SULFUR CHLORIDE IN THE PRESENCE OF FROM ABOUT 1% TO ABOUT 50% BY VOLUME OF WATER AT A TEMPERATURE IN THE RANGE FROM ABOUT 80*F. TO ABOUT 150*F.
Claim 2
Independent Claim
97 words
A METHOD OF INCREASING THE FLASH POINT, WITHOUT SUBSTANTIALLY REDUCING THE YEILD, OF CRUDE ALKYL POLYSULFIDE MIXTURES COMPRISING AT LEAST ABOUT 70% BY WEIGHT OF DIALKYL POLYSULFIDES AND A LOWER BOILING HYDROCARBON MATERIAL COMPRISING OLEFINIC CONSTITUENTS FROM WHICH THE RAW MATERIALS EMPLOYED IN THE POLYSULFIDE SYNTHESIS HAVE BEEN DERIVED, WHICH METHOD COMPRISES SULFOCHLORINATING SAID CRUDE ALKYL POLYSULFIDE MIXTURE WITH FROM ABOUT 10% TO ABOUT 25% BY VOLUME OF A SULFUR CHLORIDE IN THE PRESENCE OF FROM ABOUT 1% TO ABOUT 50% BY VOLUME OF WATER AT A TEMPERATURE IN THE RANGE FROM ABOUT 80*F. TO ABOUT 150*F.
References Cited (Backward Citations)
US2237625A
Cited
US2237627A
Cited
US2405608A
Cited
US2405607A
Cited
US2516119A
Cited
US2727030A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |