US3341619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of cis type ii olefins
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1964-04-13
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Granted: 1967-09-12
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Expires: 1984-04-13
Abstract
No abstract record available.
Inventors
- 👤 Eugene L Stogryn
- 👤 Herbert F Strohmayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:10
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/26; C07C2/30; C07C2527/00; C07C2527/06; C07C2527/135; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/26; C07C2531/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A PROCESS FOR THE POLYMERIZATION OF CIS TYPE II OLEFINS COMPRISING CONTACTING AT LEAST ONE MONOMER CONSISTING SOLELY OF A C4 TO C12 TYPE II OLEFIN CONTAINING AT LEAST 50 WT. PERCENT OF THE CIS ISOMER OF SAID OLEN, IN AN INERT HYDROCARBON DILUENT AT TEMPERATURE OF ABOUT -50 TO 200*C. AND AT PRESSURES RANGING FROM ATMOSPHERIC TO 30 ATMOSPHERES, WITH A CATALYST CONSISTING ESSENTIALLY OF A REDUCIBLE HALIDE OF A TRANSITION METAL OF GROUP VIII AND THE A SUBGROUP OF GROUPS IV AND VI ACTIVATED WITH FROM ABOUT 0.5 TO 5 MOLES OF AN ALKYL METALLIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKYL-LITHIUM AND DIALKYLBERYLLIUM PER MOLE OF SAID HALIDE, THEREBY FORMING A POLYMER OF SAID CIS ISOMER HAVING A VISCOSITY AVERAGE MOLECULAR WEIGHT OF AT LEAST 400, AND RECOVERING SAID POLYMER.
Claim 2
Dependent Claim
134 words
A PROCESS FOR THE POLYMERIZATION OF CIS TYPE II OLEFINS COMPRISING CONTACTING AT LEAST ONE MONOMER CONSISTING SOLELY OF A C4 TO C12 TYPE II OLEFIN CONTAINING AT LEAST 50 WT. PERCENT OF THE CIS ISOMER OF SAID OLEN, IN AN INERT HYDROCARBON DILUENT AT TEMPERATURE OF ABOUT -50 TO 200*C. AND AT PRESSURES RANGING FROM ATMOSPHERIC TO 30 ATMOSPHERES, WITH A CATALYST CONSISTING ESSENTIALLY OF A REDUCIBLE HALIDE OF A TRANSITION METAL OF GROUP VIII AND THE A SUBGROUP OF GROUPS IV AND VI ACTIVATED WITH FROM ABOUT 0.5 TO 5 MOLES OF AN ALKYL METALLIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKYL-LITHIUM AND DIALKYLBERYLLIUM PER MOLE OF SAID HALIDE, THEREBY FORMING A POLYMER OF SAID CIS ISOMER HAVING A VISCOSITY AVERAGE MOLECULAR WEIGHT OF AT LEAST 400, AND RECOVERING SAID POLYMER.
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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |