Patent US2698841A successfully refreshed from Google Patents.
US2698841A
Expired / Lapsed
US
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Reaction product of an olefin-diolefin resin with a cyclodiolefin
Assignee: Standard Oil Development Co
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Filing: 1952-06-26
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Granted: 1955-01-04
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Expires: 1972-06-26
Abstract
No abstract record available.
Inventors
- 👤 Jr John F Mckay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:24
CPC Classifications
C; C08; C08F; C08F240/00; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
101 words
A HIGH SOFTENING POINT RESIN CONSISTING ESSENTIALLY OF A 241*-280* C. HEAT-REACTION PRODUCT OF ABOUT 100 PARTS BY WEIGHT OF A NON-AROMATIC UNSTAURATED HYDROCARBON RESIN WHICH IS AN OLEFIN-DIOLEFIN POLYMERIZATION PRODUCT OBTAINED BY TREATING A STEAM CRACKED PETROLEUM DISTILLATE BOILING IN THE RANGE OF ABOUT 20 TO 280* C. IN THE PRESENCE OF 0.25 TO 2.5% FRIEDEL-CRAFTS CATALYST AT A TEMPERATURE OF -100* C. TO +100* C. REACTED WITH ABOUT 50 TO 100 PARTS BY WEIGHT OF DICYCLOPENTADIENE, SAID RESIN REACTION PRODUCT HAVING A SUBSTANTIALLY HIGHER HEAT SOFTENIG POINT THAN THAT OF SAID OLEFIN-DIOLEFIN RESIN PRIOR TO REACTION WITH THE DICYCLOPENTADIENE.
References Cited (Backward Citations)
US2468414A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-03 | 1958-07-05 | 1959-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-03 | 1962-07-05 | 1963-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-03 | 1966-07-05 | 1967-01-04 | $7700.00 | Window Closed / Lapsed |