US3035105A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for polymerizing ethylene to c4-c10 terminal olefins
Assignee: Sinclair Research Inc
•
Filing: 1960-02-12
•
Granted: 1962-05-15
•
Expires: 1980-02-12
Abstract
No abstract record available.
Inventors
- 👤 William D Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:24
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/86; C07C2/88; C07C2523/00; C07C2523/70; C07C2523/74; C07C2523/755
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A PROCESS FOR THE POLYMERIZATION OF ETHYLENE INTO MAINLY C4 TO C10 POLYMERS WHICH COMPRISES REACTING AT A TEMPERATURE OF ABOUT 100 TO 20*C. AND A SUPERATMOSPHERIC PRESSURE, A TRIALKYLALUMIUM WHOSE ALKYL GROUPS EACH CONTAIN 2 TO 8 CARBON ATOMS WITH ABOUT 12 TO 30 MOLES OF ETHYLENE IN THE PRESENCE OF A CATALYTIC AMOUNT OF NICKEL AND ABOUT .5 TO 2.0 MOLES OF DIPHENYL ETHER PER MOLE OF SAID TRIALKYLALUMINUM.
Claim 2
Dependent Claim
71 words
A PROCESS FOR THE POLYMERIZATION OF ETHYLENE INTO MAINLY C4 TO C10 POLYMERS WHICH COMPRISES REACTING AT A TEMPERATURE OF ABOUT 100 TO 20*C. AND A SUPERATMOSPHERIC PRESSURE, A TRIALKYLALUMIUM WHOSE ALKYL GROUPS EACH CONTAIN 2 TO 8 CARBON ATOMS WITH ABOUT 12 TO 30 MOLES OF ETHYLENE IN THE PRESENCE OF A CATALYTIC AMOUNT OF NICKEL AND ABOUT .5 TO 2.0 MOLES OF DIPHENYL ETHER PER MOLE OF SAID TRIALKYLALUMINUM.
References Cited (Backward Citations)
US2699457A
Cited
US2781410A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-14 | 1965-11-13 | 1966-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-14 | 1969-11-13 | 1970-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-14 | 1973-11-13 | 1974-05-15 | $7700.00 | Window Closed / Lapsed |