US3226336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition and process for preparing a three-component polymerization system
Assignee: Dart Industries Inc
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Filing: 1963-05-08
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Granted: 1965-12-28
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Expires: 1983-05-08
Abstract
No abstract record available.
Inventors
- 👤 Schrage Albert
- 👤 Emory J Pless
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:48
CPC Classifications
C; C08; C08F; C08F297/00; C08F297/06; C08F297/08; C08F297/083; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A POLYMERIZATION CATALYST COMPRISING THE PRODUCT FORMED BY ADMIXING (1) A TI(OR)4, WHEREIN R IS AN ALKYL GROUP CONTAINING FROM 1 TO 10 CARBON ATOMS, WITH THE PREREACTION OF (2) A CRYSTALLINE TITANIUM TRICHLORIDE COCRYSTALLIZED WITH ALUMINUM CHLORIDE AND (3) AN ALUMINUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALUMINUM TRIALKYL, DIALKYL ALUMINUM MONOCHLORIDE AND DIALKYL ALUMINUM MONOHYDRIDE, THE MOLAR RATIO OF COMPONENTS (1), (2) AND (3) IN THE FINAL CATALYST PRODUCT BEING 0.25 TO 1:1:1 TO 8 RESPECTIVELY.
Claim 2
Dependent Claim
79 words
A POLYMERIZATION CATALYST COMPRISING THE PRODUCT FORMED BY ADMIXING (1) A TI(OR)4, WHEREIN R IS AN ALKYL GROUP CONTAINING FROM 1 TO 10 CARBON ATOMS, WITH THE PREREACTION OF (2) A CRYSTALLINE TITANIUM TRICHLORIDE COCRYSTALLIZED WITH ALUMINUM CHLORIDE AND (3) AN ALUMINUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALUMINUM TRIALKYL, DIALKYL ALUMINUM MONOCHLORIDE AND DIALKYL ALUMINUM MONOHYDRIDE, THE MOLAR RATIO OF COMPONENTS (1), (2) AND (3) IN THE FINAL CATALYST PRODUCT BEING 0.25 TO 1:1:1 TO 8 RESPECTIVELY.
References Cited (Backward Citations)
US3061602A
Cited
US3001951A
Cited
US3032510A
Cited
US2953552A
Cited
US3032511A
Cited
US3073811A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |