Patent US3047504A successfully refreshed from Google Patents.
US3047504A
Expired / Lapsed
US
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Process for treating complex esters to improve viscosity stability
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1959-12-31
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Granted: 1962-07-31
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Expires: 1979-12-31
Abstract
No abstract record available.
Inventors
- 👤 Theodore J Peters
- 👤 John F Collins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:23
CPC Classifications
C; C10; C10M; C10M3/00; C10M2207/00; C10M2207/28; C10M2207/282; C10M2207/283; C10M2207/30; C10M2207/302; C10M2207/304; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/11; C10M2209/111; C10M2209/112; C10N; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/12; C10N2040/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A METHOD OF IMPROVING THE VISOCITY STABILITY OF A COMPLEX ESTER, WHEREIN SAID COMPLEX ESTER IS FORMED FROM DICARBOXYLIC ACIDS, GLYCOLS, AND A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALCOHOLS AND MONOCARBOXYLIC ACIDS, AND WHEREIN SAID COMPLEX ESTER HAS FROM 20 TO 80 CARBON ATOMS, COMPRISING BLENDING ABOUT 5 VOL. PERCENT OF A COMPLEX ESTER WITH ABOUT 95 VOL. PERCENT OF A SOLVENT SELECTED FROM THE GROUP CONSISTING OF C6 TO C16 PARAFFINIC HYDROCARBONS AND C20 TO C36 ALIPHATIC DIESTERS, TREATING THE BLEND WITH 0.1 TO 10 WT. PERCENT OF AN ADSORBENT WITH AGITATION FOR APPROXIMATELY 1/2 TO 10 HOURS AND AT A TEMPERATURE OF FROM 0 TO 200*F. AND SEPARATING THE ADSORBENT FROM THE BLEND.
Claim 2
Independent Claim
117 words
A METHOD OF IMPROVING THE VISOCITY STABILITY OF A COMPLEX ESTER, WHEREIN SAID COMPLEX ESTER IS FORMED FROM DICARBOXYLIC ACIDS, GLYCOLS, AND A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALCOHOLS AND MONOCARBOXYLIC ACIDS, AND WHEREIN SAID COMPLEX ESTER HAS FROM 20 TO 80 CARBON ATOMS, COMPRISING BLENDING ABOUT 5 VOL. PERCENT OF A COMPLEX ESTER WITH ABOUT 95 VOL. PERCENT OF A SOLVENT SELECTED FROM THE GROUP CONSISTING OF C6 TO C16 PARAFFINIC HYDROCARBONS AND C20 TO C36 ALIPHATIC DIESTERS, TREATING THE BLEND WITH 0.1 TO 10 WT. PERCENT OF AN ADSORBENT WITH AGITATION FOR APPROXIMATELY 1/2 TO 10 HOURS AND AT A TEMPERATURE OF FROM 0 TO 200*F. AND SEPARATING THE ADSORBENT FROM THE BLEND.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |