US2837491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for raising the softening point of hydrocarbon resins and product produced thereby
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1953-10-20
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Granted: 1958-06-03
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Expires: 1973-10-20
Abstract
No abstract record available.
Inventors
- 👤 Jr John F Mckay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:55
CPC Classifications
C; C08; C08L; C08L57/00; C08L57/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
IN A PROCESS FOR RAISING THE SOFTENING POINT OF A HYDROCARBON RESIN PREPARED BY THE POLYMERIZATION OF A HYDROCARBON FRACTION BOLING BETWEEN ABOUT 20*C. AND 280*C. AND CONTAINING ABOUT 10 TO 35% CONJUGATED DIOLEFINS AND 30 TO 65% MONO-OLEDINS; THE IMPROVEMENT WHICH CONSISTS IN MIXING ABOUT 100 PARTS OF SAID RESIN WITH A LEAST ABOUT 10 PARTS OF A METAL RESINATE SELECTED FROM THE GROUP CONSISTING OF ZINC, CALCIUM, MAGNESIUM, AND ALUMIMIUM RESINATES, AND HEATING THE MIXTURE ABOVE ABOUT 240*C. BUT BELOW THE DECOMPOSITION TEMPERATURE OF THE RESIN FOR A TIME OF ABOUT 1 TO 6 HOURS TO SUBSTANTIALLY RAISE THE SOFTENING POINT OF THE RESIN.
Claim 2
Dependent Claim
106 words
IN A PROCESS FOR RAISING THE SOFTENING POINT OF A HYDROCARBON RESIN PREPARED BY THE POLYMERIZATION OF A HYDROCARBON FRACTION BOLING BETWEEN ABOUT 20*C. AND 280*C. AND CONTAINING ABOUT 10 TO 35% CONJUGATED DIOLEFINS AND 30 TO 65% MONO-OLEDINS; THE IMPROVEMENT WHICH CONSISTS IN MIXING ABOUT 100 PARTS OF SAID RESIN WITH A LEAST ABOUT 10 PARTS OF A METAL RESINATE SELECTED FROM THE GROUP CONSISTING OF ZINC, CALCIUM, MAGNESIUM, AND ALUMIMIUM RESINATES, AND HEATING THE MIXTURE ABOVE ABOUT 240*C. BUT BELOW THE DECOMPOSITION TEMPERATURE OF THE RESIN FOR A TIME OF ABOUT 1 TO 6 HOURS TO SUBSTANTIALLY RAISE THE SOFTENING POINT OF THE RESIN.
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) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |