US2750360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diolefin addition to hydrocarbon resin feeds
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1953-02-25
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Granted: 1956-06-12
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Expires: 1973-02-25
Abstract
No abstract record available.
Inventors
- 👤 Charles B Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:26
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
AN IMPROVED PROCESS FOR PREPARING HYDROCARBON PETROLEUM RESINS WHICH COMPRISES THE STEPS OF ADMIXING A STEAM CRACKED PETROLEUM STREAM BOILING FROM 100* TO 300* F., AND CONTAINING FROM 51 TO 62 WT. PER CENT OLEFINS, FROM 10 TO 15 WT. PER CENT DIOLEFINS, FROM 3 TO 4 WT. PER CENT PARAFFINS, AND FROM 25 TO 30 WT. PER CENT AROMATICS WITH FROM 5 TO 20 WT. PER CENT OF METHYLCYCLOPENTADIENE, POLYMERIZING THE RESULTING UNSATURATED MIXTURE WITH BF3 AT A TEMPERATURE OF FROM -40 TO +50* F., AND ISOLATING THE RESIN PRODUCED THEREBY.
Claim 2
Dependent Claim
92 words
AN IMPROVED PROCESS FOR PREPARING HYDROCARBON PETROLEUM RESINS WHICH COMPRISES THE STEPS OF ADMIXING A STEAM CRACKED PETROLEUM STREAM BOILING FROM 100* TO 300* F., AND CONTAINING FROM 51 TO 62 WT. PER CENT OLEFINS, FROM 10 TO 15 WT. PER CENT DIOLEFINS, FROM 3 TO 4 WT. PER CENT PARAFFINS, AND FROM 25 TO 30 WT. PER CENT AROMATICS WITH FROM 5 TO 20 WT. PER CENT OF METHYLCYCLOPENTADIENE, POLYMERIZING THE RESULTING UNSATURATED MIXTURE WITH BF3 AT A TEMPERATURE OF FROM -40 TO +50* F., AND ISOLATING THE RESIN PRODUCED THEREBY.
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) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |