US2800452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized hydrocarbon compositions
Assignee: Shell Development Co
•
Filing: 1954-07-12
•
Granted: 1957-07-23
•
Expires: 1974-07-12
Abstract
No abstract record available.
Inventors
- 👤 Arnold A Bondi
- 👤 Herbert A Newey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:52
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/08; C08; C08F; C08F20/00; C08F20/62; C08F28/00; C08F8/00; C08F8/30; C08F8/32; C10L1/00; C10L1/10; C10L1/14; C10L1/146; C10L10/04; C10M; C10M143/00; C10M145/00; C10M145/02; C10M147/00; C10M149/00; C10M149/02; C10M149/06; C10M151/00; C10M151/02; C10L1/22; C10L1/234; C10L1/236; C10L1/2362; C10L1/2364; C10L1/2366; C10L1/2368; C10L1/24; C10L1/2462; C10L1/2468; C10L1/26; C10L1/2666; C10L1/2675; C10M2201/00; C10M2201/08; C10M2201/082; C10M2201/083; C10M2203/00; C10M2203/06; C10M2203/10; C10M2203/102; C10M2205/00; C10M2205/02; C10M2205/026; C10M2205/04; C10M2205/22; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/024; C10M2207/026; C10M2207/027; C10M2207/28; C10M2207/282; C10M2207/34; C10M2207/40; C10M2207/402; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/101; C10M2209/103; C10M2213/00; C10M2213/02; C10M2213/06; C10M2213/062; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/044; C10M2215/10; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/02; C10M2217/022; C10M2217/023; C10M2217/024; C10M2217/026; C10M2217/028; C10M2217/04; C10M2217/044; C10M2217/045; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/08; C10M2219/082; C10M2219/083; C10M2219/086; C10M2221/00; C10M2221/02; C10M2221/04; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/045; C10M2223/047; C10M2223/06; C10M2223/065; C10M2223/12; C10M2225/00; C10M2225/02; C10M2225/04; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/041; C10M2229/05; C10N; C10N2010/00; C10N2010/04; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/14; C10N2040/16; C10N2040/17; C10N2040/20; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2040/46; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A HYDROCARBON OIL COMPOSITION CONTAINING A MINOR AMOUNT, SUFFICIENT TO STABILIZE SAID OIL AGAINST OXIDATION AND SLUDGING, OF AN OIL-SOLUBLE POLYMERIC REACTION PRODUCT FORMED BY REACTING A 1-OLEFIN HAVING AT LEAST 10 CARBON ATOMS WITH AN ESTER OF AN ACRYLIC ACID AND A LOWER ALKANOL OF FROM 1 TO 3 CARBON ATOMS IN THE MOLE RATIO OF FROM 1:5 TO 5:1, RESPECTIVELY, IN THE PRESENCE OF A PEROXIDE TYPE CATALYST, AND THEREAFTER AMIDIZING AT LEAST 10% OF THE ESTER GROUPS IN THE POLYMER WITH AN AMINE CONTAINING A SUBSTITUENT POLAR GROUP SELECTED FROM
Claim 2
Dependent Claim
93 words
A HYDROCARBON OIL COMPOSITION CONTAINING A MINOR AMOUNT, SUFFICIENT TO STABILIZE SAID OIL AGAINST OXIDATION AND SLUDGING, OF AN OIL-SOLUBLE POLYMERIC REACTION PRODUCT FORMED BY REACTING A 1-OLEFIN HAVING AT LEAST 10 CARBON ATOMS WITH AN ESTER OF AN ACRYLIC ACID AND A LOWER ALKANOL OF FROM 1 TO 3 CARBON ATOMS IN THE MOLE RATIO OF FROM 1:5 TO 5:1, RESPECTIVELY, IN THE PRESENCE OF A PEROXIDE TYPE CATALYST, AND THEREAFTER AMIDIZING AT LEAST 10% OF THE ESTER GROUPS IN THE POLYMER WITH AN AMINE CONTAINING A SUBSTITUENT POLAR GROUP SELECTED FROM
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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) | 1960-07-22 | 1961-01-21 | 1961-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-22 | 1965-01-21 | 1965-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-22 | 1969-01-21 | 1969-07-23 | $7700.00 | Window Closed / Lapsed |