Patent US3089832A successfully refreshed from Google Patents.
US3089832A
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Polymeric lubricating oil additives
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1956-08-01
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Granted: 1963-05-14
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Expires: 1976-08-01
Abstract
No abstract record available.
Inventors
- 👤 James F Black
- 👤 Donald A Guthrie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:21
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/08; B01J19/081; C; C08; C08F; C08F255/00; C08F255/08; C08F291/00; C08F291/18; C10; C10M; C10M159/00; C10M159/005; C10M177/00; C10M2201/00; C10M2201/04; C10M2201/041; C10M2201/042; C10M2201/06; C10M2201/062; C10M2201/065; C10M2201/066; C10M2203/00; C10M2203/10; C10M2203/108; C10M2205/00; C10M2205/02; C10M2205/022; C10M2205/024; C10M2205/026; C10M2205/04; C10M2205/06; C10M2205/14; C10M2205/20; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/023; C10M2207/027; C10M2207/04; C10M2207/08; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/14; C10M2207/144; C10M2207/146; C10M2207/16; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/32; C10M2207/34; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/04; C10M2209/06; C10M2209/062; C10M2209/08; C10M2209/082; C10M2209/084; C10M2209/086; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/109; C10M2209/11; C10M2209/111; C10M2209/112; C10M2211/00; C10M2211/04; C10M2211/044; C10M2211/06; C10M2213/00; C10M2213/02; C10M2213/06; C10M2213/062; C10M2215/00; C10M2215/02; C10M2215/20; C10M2215/202; C10M2217/00; C10M2217/02; C10M2217/022; C10M2217/023; C10M2217/024; C10M2217/026; C10M2217/028; C10M2217/06; C10M2219/00; C10M2219/02; C10M2219/024; C10M2219/04; C10M2219/044; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/045; C10M2223/12; C10M2223/121; C10M2229/00; C10M2229/04; C10M2229/041; C10M2229/043; C10M2229/044; C10N; C10N2010/00; C10N2010/04; C10N2010/06; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/02; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046; C10N2040/08; C10N2040/135; C10N2040/14; C10N2040/16; C10N2040/17; C10N2040/20; C10N2040/22; C10N2050/00; C10N2050/10; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A METHOD OF PREPARING A POLYMERIC LUBRICATING OIL ADDITIVE COMPRISING IRRADIATING WITH HIGH INTENSITY IONIZING RADIATION AN INTIMATE MIXTURE OF 0.1 TO 99.9% OF AN ISOBUTYLENE POLYMER HAVING A MOLECULAR WEIGHT IN THE RANGE OF 500 TO 5X10**6 AND 99.9% TO 0.1% OF A POLYMERIZABLE MONOMER OTHER THAN A BUTENE WITHIN THE RANGE OF 5X10**4 TO 5X10**7 ROENTGENS AT AN IONIZING RADIATION INTENSITY OF 10**3 TO 10**8 ROENTGENS PER HOUS, AND RECOVERING A POLYMER HAVING A MOLECULAR WEIGHT IN THE RANGE OF 35,000 TO 500,000 AND CONSISTING OF SAID MONOMER GRAFTED TO SAID ISOBUTYLENE POLYMER.
Claim 2
Independent Claim
95 words
A METHOD OF PREPARING A POLYMERIC LUBRICATING OIL ADDITIVE COMPRISING IRRADIATING WITH HIGH INTENSITY IONIZING RADIATION AN INTIMATE MIXTURE OF 0.1 TO 99.9% OF AN ISOBUTYLENE POLYMER HAVING A MOLECULAR WEIGHT IN THE RANGE OF 500 TO 5X10**6 AND 99.9% TO 0.1% OF A POLYMERIZABLE MONOMER OTHER THAN A BUTENE WITHIN THE RANGE OF 5X10**4 TO 5X10**7 ROENTGENS AT AN IONIZING RADIATION INTENSITY OF 10**3 TO 10**8 ROENTGENS PER HOUS, AND RECOVERING A POLYMER HAVING A MOLECULAR WEIGHT IN THE RANGE OF 35,000 TO 500,000 AND CONSISTING OF SAID MONOMER GRAFTED TO SAID ISOBUTYLENE POLYMER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |