US3031440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of olefins with a catalyst of a grignard reagent and an aluminum containing titanium composition
Assignee: NL Industries Inc
•
Filing: 1959-05-01
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Granted: 1962-04-24
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Expires: 1979-05-01
Abstract
No abstract record available.
Inventors
- 👤 Kaufman Daniel
- 👤 Bryce H Mcmullen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:30
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
49 words
METHOD FOR POLYMERILZING AN OLEFINIC MONOMER, SELECTED FROM THE GROUP CONSISTING OF ETHYLENE AND PROPYLENE, WHICH COMPRISES ADMIXING SAID MONOMER AND A CATALYST SYSTEM CONSISTING ESSENTIALLY OF AN ANHYDROUS TITANIUM COMPOSITION, A GRIGNARD REAGENT AND AN INERT, ORGANIC SOLVENT, SAID ANHYDROUS TITANIUM COMPOSITION HAVING THE FOLLOWING X-RAY DIFFRACTION PATTERN:
Claim 2
Dependent Claim
49 words
METHOD FOR POLYMERILZING AN OLEFINIC MONOMER, SELECTED FROM THE GROUP CONSISTING OF ETHYLENE AND PROPYLENE, WHICH COMPRISES ADMIXING SAID MONOMER AND A CATALYST SYSTEM CONSISTING ESSENTIALLY OF AN ANHYDROUS TITANIUM COMPOSITION, A GRIGNARD REAGENT AND AN INERT, ORGANIC SOLVENT, SAID ANHYDROUS TITANIUM COMPOSITION HAVING THE FOLLOWING X-RAY DIFFRACTION PATTERN:
Claim 3
Dependent Claim
31 words
91 VERY STRONG. 5.32 MEDIUM. 5.10 DO. 4.55 WEAK-MEDIUM. 3.95 WEAK. 3.03 MEDIUM. 3.94 WEAK-MEDIUM. 2.90 DO. 2.72 DO. 2.52 STRONG. 2.13 WEAK. 1.96 WEAK-MEDIUM. 1.80 MEDIUM. 1.70 WEAK-MEDIUM. 1.47 DO.
Claim 4
Dependent Claim
31 words
91 VERY STRONG. 5.32 MEDIUM. 5.10 DO. 4.55 WEAK-MEDIUM. 3.95 WEAK. 3.03 MEDIUM. 3.94 WEAK-MEDIUM. 2.90 DO. 2.72 DO. 2.52 STRONG. 2.13 WEAK. 1.96 WEAK-MEDIUM. 1.80 MEDIUM. 1.70 WEAK-MEDIUM. 1.47 DO.
References Cited (Backward Citations)
US2899413A
Cited
FR1132506A
Cited
US2905645A
Cited
US2886561A
Cited
US2893984A
Cited
US2980660A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |