US3244685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization process for butene-1
Assignee: Petro Tex Chemical Corp
•
Filing: 1961-04-10
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Granted: 1966-04-05
•
Expires: 1981-04-10
Abstract
No abstract record available.
Inventors
- 👤 Roger M Nagel
- 👤 Gabliks Maigonis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:25
CPC Classifications
C; C08; C08F; C08F10/00; C08F10/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A METHOD FOR POLYMERIZING BUTENE-1 WHICH COMPRISES CONTACTING BUTENE-1 WITH A CATALYST COMPRISING TITANIUM TETRACHLORIDE, A TRIALKYL ALUMINUM COMPOUND WHEREIN THE ALKYL GROUPS CONTAIN 2 TO 10 CARBON ATOMS AND A MERCUROUS HALIDE IN A MOLAR RATIO OF ONE MOL OF TITANIUM TETRACHLORIDE, ABOUT 1 TO 4 MOLS OF TRIALKYL ALUMINUM AND ABOUT 0.1 TO 0.5 MOL OF MERCUROUS HALIDE PER MOL OF TITANIUM TETRACHLORIDE.
Claim 2
Independent Claim
65 words
A METHOD FOR POLYMERIZING BUTENE-1 WHICH COMPRISES CONTACTING BUTENE-1 WITH A CATALYST COMPRISING TITANIUM TETRACHLORIDE, A TRIALKYL ALUMINUM COMPOUND WHEREIN THE ALKYL GROUPS CONTAIN 2 TO 10 CARBON ATOMS AND A MERCUROUS HALIDE IN A MOLAR RATIO OF ONE MOL OF TITANIUM TETRACHLORIDE, ABOUT 1 TO 4 MOLS OF TRIALKYL ALUMINUM AND ABOUT 0.1 TO 0.5 MOL OF MERCUROUS HALIDE PER MOL OF TITANIUM TETRACHLORIDE.
References Cited (Backward Citations)
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |