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US3325418A
Expired / Lapsed
US
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Polychlorosulfonated polymers as viscosity index improvers and lubricating oil detergents
Assignee: Chevron USA Inc
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Filing: 1964-09-23
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Granted: 1967-06-13
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Expires: 1984-09-23
Abstract
No abstract record available.
Inventors
- 👤 Frank A Stuart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:23
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C08; C08F; C08F8/00; C08F8/30; C08F8/32; C08F2800/00; C08F2800/10; C10M2203/00; C10M2203/06; C10M2205/00; C10M2205/02; C10M2205/024; C10M2205/026; C10M2207/00; C10M2207/04; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/105; C10M2209/108; C10M2221/00; C10M2221/04; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10M2227/00; C10M2227/02; C10M2229/00; C10M2229/04; C10M2229/041; C10M2229/043; C10M2229/044; C10M2229/045; C10M2229/046; C10M2229/047; C10M2229/048; C10N; C10N2010/00; C10N2010/04; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
117 words
A LUBRICATING OIL COMPOSITION COMPRISING AN OIL OF LUBRICATING VISCOSITY AND IN SUFFICIENT AMOUNT TO PROVIDE VISCOSITY INDEX IMPROVEMENT AND DETERGENCY A POLYSULFONAMIDE-SUBSTITUTED POLYOLEFIN OF FROM ABOUT 200,000 TO 1,000,000 MOLECULAR WEIGHT OBTAINED BY REACTING A CHLOROSULFONATED POLYOLEFIN, DERIVED FROM ALIPHATIC OLEFINS OF FROM 2 TO 20 CARBON ATOMS, HAVING A CARBON TO SULFUR RATIO OF FROM ABOUT 100 TO 600 AND FROM 0 TO 2 CHLORINE ATOMS PER SULFUR ATOM OTHER THAN THE CHLORINE OF THE CHLOROSULFONYL GROUP, WITH AN AMINE OF FROM 2 TO 20 CARBON ATOMS, FROM 1 TO 6 NITROGEN ATOMS AND FROM 0 TO 3 HYDROXYL GROUP, WHEREIN AT LEAST ABOUT 1 MOL OF AMINE WILL BE ADDED PER EQUIVALENT OF CHLOROSULFONYL.
Claim 2
Dependent Claim
117 words
A LUBRICATING OIL COMPOSITION COMPRISING AN OIL OF LUBRICATING VISCOSITY AND IN SUFFICIENT AMOUNT TO PROVIDE VISCOSITY INDEX IMPROVEMENT AND DETERGENCY A POLYSULFONAMIDE-SUBSTITUTED POLYOLEFIN OF FROM ABOUT 200,000 TO 1,000,000 MOLECULAR WEIGHT OBTAINED BY REACTING A CHLOROSULFONATED POLYOLEFIN, DERIVED FROM ALIPHATIC OLEFINS OF FROM 2 TO 20 CARBON ATOMS, HAVING A CARBON TO SULFUR RATIO OF FROM ABOUT 100 TO 600 AND FROM 0 TO 2 CHLORINE ATOMS PER SULFUR ATOM OTHER THAN THE CHLORINE OF THE CHLOROSULFONYL GROUP, WITH AN AMINE OF FROM 2 TO 20 CARBON ATOMS, FROM 1 TO 6 NITROGEN ATOMS AND FROM 0 TO 3 HYDROXYL GROUP, WHEREIN AT LEAST ABOUT 1 MOL OF AMINE WILL BE ADDED PER EQUIVALENT OF CHLOROSULFONYL.
Claim 3
Dependent Claim
32 words
A LUBRICATING OIL COMPOSITION AS DESCRIBED IN CLAIM 1, HAVING FROM 6 TO 50 MM. PER KILOGRAM OF ZINC O,ODIHYDROCARBYL PHOSPHORODITHIOATE, WHEREIN SAID HYDROCARBYL GROUP IS FROM 4 TO 36 CARBON ATOMS.
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) | 1970-06-12 | 1970-12-12 | 1971-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-12 | 1974-12-12 | 1975-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-12 | 1978-12-12 | 1979-06-13 | $7700.00 | Window Closed / Lapsed |