US3149098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three-component catalyst for 1-olefin polymerization containing aluminum alkyl halide, titanium trichloride and an orthoester
Assignee: Avisun Corp
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Filing: 1962-02-27
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Granted: 1964-09-15
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Expires: 1982-02-27
Abstract
No abstract record available.
Inventors
- 👤 John A Price
- 👤 Harold T Smallwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:43
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
IN THE POLYMERIZATION OF 1-ALKENES HAVING AT LEAST THREE CARBON ATOMS TO FORM SOLID CRYSTALLINE POLYMERS THE IMPROVEMENT WHICH COMPRISES CATALYZING THE POLYMERIZATION WITH A PRODUCT FORMED BY MIXING, IN AN INERT SOLVENT, AN ALKYL ALUMINUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKYL ALUMINUM DIHALIDES AND ALUMINUM ALKYL SESQUIHALIDES WITH AN ORTHOESTER HAVING THE FORMULA ZC(OR)3 WHERE Z IS SELECTED FROM THE GROUP CONSISTING OF A LOWER ALKYL GROUP AND AN ALKOXY GROUP HAVING FROM 1 TO 4 CARBON ATOMS AND R IS AN ALKYL GROUP HAVING FROM 1 TO 4 CARBON ATOMS, AND THEREAFTER ADDING TO THE MIXTURE TITANIUM TRICHLORIDE, WHEREIN THE MOL RATIO OF ALKYL ALUMINUM COMPOUND TO TITANIUM TRICHLORIDE IS FROM ABOUT 0.2:1 TO ABOUT 10:1, AND THE MOL RATIO OF ALKYL ALUMINUM COMPOUND TO THE ORTHOESTER IS FROM ABOUT 1.5:1 TO ABOUT 6:1.
Claim 2
Dependent Claim
138 words
IN THE POLYMERIZATION OF 1-ALKENES HAVING AT LEAST THREE CARBON ATOMS TO FORM SOLID CRYSTALLINE POLYMERS THE IMPROVEMENT WHICH COMPRISES CATALYZING THE POLYMERIZATION WITH A PRODUCT FORMED BY MIXING, IN AN INERT SOLVENT, AN ALKYL ALUMINUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKYL ALUMINUM DIHALIDES AND ALUMINUM ALKYL SESQUIHALIDES WITH AN ORTHOESTER HAVING THE FORMULA ZC(OR)3 WHERE Z IS SELECTED FROM THE GROUP CONSISTING OF A LOWER ALKYL GROUP AND AN ALKOXY GROUP HAVING FROM 1 TO 4 CARBON ATOMS AND R IS AN ALKYL GROUP HAVING FROM 1 TO 4 CARBON ATOMS, AND THEREAFTER ADDING TO THE MIXTURE TITANIUM TRICHLORIDE, WHEREIN THE MOL RATIO OF ALKYL ALUMINUM COMPOUND TO TITANIUM TRICHLORIDE IS FROM ABOUT 0.2:1 TO ABOUT 10:1, AND THE MOL RATIO OF ALKYL ALUMINUM COMPOUND TO THE ORTHOESTER IS FROM ABOUT 1.5:1 TO ABOUT 6:1.
References Cited (Backward Citations)
US2965627A
Cited
US3008948A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |