US3008910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for simultaneous alcoholysis and gasproofing of tung oil, and production of alkyd resins therefrom
Assignee: Individual
•
Filing: 1959-04-10
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Granted: 1961-11-14
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Expires: 1979-04-10
Abstract
No abstract record available.
Inventors
- 👤 Leo A Goldblatt
- 👤 Jr Lucien L Hopper
- 👤 Eric T Rayner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:35
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/46; C08G63/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A PROCESS FOR PREPARING A GASPROOF, NON-GELLING TUNG OIL ALKYD, THE DRIED FILM OF WHICH EXHIBIT OUTSTANDING WATER RESISTANCE, COMPRISING THE FOLLOWING STEPS, HEATING 1 PART BY WEIGHT OF TUNG OIL AND 1 PART BY WEIGHT OF TALL OIL FATTY ACIDS WITH AT LEAST ABOUT 0.28 PART BY WEIGHT OF TRIMETHYLOLETHANE IN THE PRESENCE OF AN ALCOHOLYSIS CATALYST AT A TEMPERATURE OF AT LEAST 565*F. FOR AT LEAST ABOUT 10 MINUTES, AND ADDING ABOUT 0.3 PART BY WEIGHT OF ISOPHTHALIC ACID AND HEATING AT A TEMPERATURE OF ABOUT 500* F. IN THE PRESENCE OF AN ESTERIFICATION CATALYST UNTIL THE RESULTING TUNG OIL ALKYD HAS AN ACID VALUE BELOW ABOUT 11.
Claim 2
Dependent Claim
110 words
A PROCESS FOR PREPARING A GASPROOF, NON-GELLING TUNG OIL ALKYD, THE DRIED FILM OF WHICH EXHIBIT OUTSTANDING WATER RESISTANCE, COMPRISING THE FOLLOWING STEPS, HEATING 1 PART BY WEIGHT OF TUNG OIL AND 1 PART BY WEIGHT OF TALL OIL FATTY ACIDS WITH AT LEAST ABOUT 0.28 PART BY WEIGHT OF TRIMETHYLOLETHANE IN THE PRESENCE OF AN ALCOHOLYSIS CATALYST AT A TEMPERATURE OF AT LEAST 565*F. FOR AT LEAST ABOUT 10 MINUTES, AND ADDING ABOUT 0.3 PART BY WEIGHT OF ISOPHTHALIC ACID AND HEATING AT A TEMPERATURE OF ABOUT 500* F. IN THE PRESENCE OF AN ESTERIFICATION CATALYST UNTIL THE RESULTING TUNG OIL ALKYD HAS AN ACID VALUE BELOW ABOUT 11.
References Cited (Backward Citations)
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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) | 1964-11-13 | 1965-05-15 | 1965-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-13 | 1969-05-15 | 1969-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-13 | 1973-05-15 | 1973-11-14 | $7700.00 | Window Closed / Lapsed |