Patent US2493486A successfully refreshed from Google Patents.
US2493486A
Expired / Lapsed
US
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Tall oil esters
Assignee: Celanese Coatings Co
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Filing: 1946-04-10
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Granted: 1950-01-03
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Expires: 1966-04-10
Abstract
No abstract record available.
Inventors
- 👤 Greenlee Sylvan Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:30
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/14; C08G59/1433; C08G59/1438; C08G59/1455; C08G59/1461; C08G59/1472
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A SYNTHETIC DRYING COMPOSITION CONSISTING ESSENTIALLY OF TALL OIL ESTERS OF A HIGH MOLECULAR WEIGHT RESINOUS POLYMERIC POLYHYDRIC ALCOHOL HAVING AN AVERAGE OF MORE THAN FIVE ESTERIFIABLE GROUPS PER MOLECULE, SAID RESINOUS POLYMERIC POLYHYDRIC ALCOHOL BEING A POLYETHER DERIVATIVE OF A DIHYDRIC PHENOL HAVING ALTERNATING ALIPHATIC CHAINS AND AROMATIC NUCLEI UNITED THROUGH ETHER OXYGEN AND BEING FREE FROM FUNCTIONAL GROUPS OTHER THAN EPOXY AND HYDROXY GROUPS, THE PROPORTIONS OF TALL OIL COMBINED WITH THE HIGH MOLECULAR WEIGHT POLYMERIC POLYHYDRIC ALCOHOLS BEING FROM ABOUT 1.7 TO 1 TO ABOUT 1 TO 1.8 BY WEIGHT.
Claim 2
Dependent Claim
93 words
A SYNTHETIC DRYING COMPOSITION CONSISTING ESSENTIALLY OF TALL OIL ESTERS OF A HIGH MOLECULAR WEIGHT RESINOUS POLYMERIC POLYHYDRIC ALCOHOL HAVING AN AVERAGE OF MORE THAN FIVE ESTERIFIABLE GROUPS PER MOLECULE, SAID RESINOUS POLYMERIC POLYHYDRIC ALCOHOL BEING A POLYETHER DERIVATIVE OF A DIHYDRIC PHENOL HAVING ALTERNATING ALIPHATIC CHAINS AND AROMATIC NUCLEI UNITED THROUGH ETHER OXYGEN AND BEING FREE FROM FUNCTIONAL GROUPS OTHER THAN EPOXY AND HYDROXY GROUPS, THE PROPORTIONS OF TALL OIL COMBINED WITH THE HIGH MOLECULAR WEIGHT POLYMERIC POLYHYDRIC ALCOHOLS BEING FROM ABOUT 1.7 TO 1 TO ABOUT 1 TO 1.8 BY WEIGHT.
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) | 1953-01-02 | 1953-07-04 | 1954-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-02 | 1957-07-04 | 1958-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-02 | 1961-07-04 | 1962-01-03 | $7700.00 | Window Closed / Lapsed |