US3756954A
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Rs for lubricants degraded ethylene propylene interpolymers useful as viscosity modifie
Assignee: Lubrizol Corp
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Filing: 1971-09-16
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Granted: 1973-09-04
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Expires: 1991-09-16
Abstract
Abstract INTERPOLYMERS (ESPECIALLY COPOLYMERS) OF ETHYLENE AND PROPYLENE ARE OXIDIZED AND DEGRADED BY HEATING ABOVE 100* C. WITH AN OXYGEN-CONTAINING GAS, USUALLY AIR, IN THE PRESENCE OF AN ALIPHATIC AMINE. THE DEGRADED POLYMERS ARE CHARACTERIZED BY CAUSING SUBSTANTIALLY NO INCREASE IN THE LOW-TEMPERATURE FLUIDITY OF A FUEL OIL, AND ARE USEFUL AS VISCOSITY MODIFIERS FOR LUBRICANTS.
Inventors
- 👤 F Abbott
- 👤 N Pearson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:25
CPC Classifications
C; C10; C10M; C10M143/00; C10M143/02; C08; C08F; C08F8/00; C08F8/50; C08F210/00; C08F210/04; C08F210/06; C08F210/16; C08F210/18; C08F2810/00; C08F2810/10; C10M2203/00; C10M2203/02; C10M2203/022; C10M2203/024; C10M2203/04; C10M2203/06; C10M2203/10; C10M2203/102; C10M2203/108; C10M2205/00; C10M2205/02; C10M2205/024; C10M2205/026; C10M2205/06; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/30; C10M2207/302; C10M2207/34; C10M2207/40; C10M2207/402; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/086; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/108; C10M2209/109; C10M2209/11; C10M2209/111; C10M2211/00; C10M2211/06; C10M2211/08; C10M2213/00; C10M2213/02; C10M2213/06; C10M2213/062; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/08; C10M2215/082; C10M2215/086; C10M2215/12; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/28; C10M2215/30; C10M2217/00; C10M2217/02; C10M2217/022; C10M2217/023; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2219/04; C10M2219/044; C10M2219/046; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2219/09; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/045; C10M2223/06; C10M2223/065; C10M2223/12; C10M2225/00; C10M2225/04; C10M2225/041; C10M2227/00; C10M2227/02; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/041; C10M2229/042; C10M2229/043; C10M2229/044; C10M2229/045; C10M2229/046; C10M2229/047; C10M2229/048; C10M2229/05; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2020/00; C10N2020/01; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/02; C10N2040/08; C10N2040/12; C10N2040/13; C10N2040/20; C10N2040/25; C10N2040/255; C10N2040/26; C10N2050/00; C10N2050/10; Y; Y10; Y10S; Y10S260/00; Y10S260/42
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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