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US4439539A
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Catalytic component for polymerization of α-olefin and method for homo- or co-polymerization of α-olefin
Assignee: Tosoh Finechem Corp
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Filing: 1982-06-09
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Granted: 1984-03-27
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Expires: 2002-06-09
Abstract
Abstract A Ziegler type supported catalytic component for polymerization of an α-olefin is prepared by allowing an organo-magnesium compound expressed by a generic formula of R'MgX' (wherein R' represents a hydrocarbon group having 1 to 20 carbon atoms and X' either a halogen atom chosen out of chlorine, bromine and iodine or a hydrocarbon group having 1 to 20 carbon atoms) to react wtih carbon tetrahalide in the presence of an electron donor compound to obtain a solid product through a solid-liquid separation process; by heat treating the separated solid product with a carbon halide; by treating the heat treated solid product with phenols at 90° to 180° C.; and by treating this phenol treated product further with a halogenated titanium compound. Homo- or co-polymerization of an α-olefin is carried out in the presence or a catalyst composition consisting of the above catalytic component and an organo-aluminum compound. With this catalytic component, stereospecific polymerization of an α-olefin can be stably carried out at high temperature.
Inventors
- 👤 Masaru Takitani
- 👤 Shizuo Tomiyasu
- 👤 Keikichi Baba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:02
CPC Classifications
C; C08; C08F; C08F10/00; Y; Y10; Y10S; Y10S526/00; Y10S526/907
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
215 words
A catalytic component for polymerization of an α-olefin, prepared through steps including: (a) a step in which an organo-magnesium compound expressed by the generic formula of R'MgX' (wherein R' represents a hydrocarbon group having 1 to 20 carbon atoms and X' either a halogen atom chosen out of chlorine, bromine and iodine or a hydrocarbon group having 1 to 20 carbon atoms) is allowed to react with carbon tetrahalide in the presence of an electron donor compound to obtain a solid product through a solid-liquid separation process, at a temperature between -50° C. and 100° C.; (b) a step in which the separated solid is heat treated with a carbon halide at a temperature between 40° C. and 80° C.; (c) a step in which the heat treated solid product is treated with phenols at a temperature between 90° C. and 180° C., the amount of the phenols used is 0.01 to 10 mol per mol of magnesium contained in the heat treated solid product; and (d) another step in which the phenol treated product is treated further with a halogenated titanium compound at a temperature between room temperature and 150° C., the amount at the halogenated compound used is at least 0.01 mol per mol of the magnesium contained in the phenol treated product.
Claim 2
Dependent Claim
215 words
A catalytic component for polymerization of an α-olefin, prepared through steps including: (a) a step in which an organo-magnesium compound expressed by the generic formula of R'MgX' (wherein R' represents a hydrocarbon group having 1 to 20 carbon atoms and X' either a halogen atom chosen out of chlorine, bromine and iodine or a hydrocarbon group having 1 to 20 carbon atoms) is allowed to react with carbon tetrahalide in the presence of an electron donor compound to obtain a solid product through a solid-liquid separation process, at a temperature between -50° C. and 100° C.; (b) a step in which the separated solid is heat treated with a carbon halide at a temperature between 40° C. and 80° C.; (c) a step in which the heat treated solid product is treated with phenols at a temperature between 90° C. and 180° C., the amount of the phenols used is 0.01 to 10 mol per mol of magnesium contained in the heat treated solid product; and (d) another step in which the phenol treated product is treated further with a halogenated titanium compound at a temperature between room temperature and 150° C., the amount at the halogenated compound used is at least 0.01 mol per mol of the magnesium contained in the phenol treated product.
Claim 3
Dependent Claim
244 words
The catalytic component for polymerization of an α-olefin, prepared through steps including: (a) a step in which an organo-magnesium compound expressed by the generic formula of R'Mgx' (wherein R' represents a hydrocarbon group having 1 to 20 carbon atoms and X' either a halogen atom chosen out of chlorine, bromine and iodine or a hydrocarbon group having 1 to 20 carbon atoms) is allowed to react with carbon tetrahalide in the presence of an electron donor compound to obtain a solid product through a solid-liquid separation process, at a temperature between -50° C. and 100° C.; (b) a step in which the separated solid is heat treated with a carbon halide at a temperature between 40° C. and 80° C.; (c) a step in which the heat treated solid product is treated with phenols at a temperature between 90° C. and 180° C., the amount of phenols used is 0.01 to 10 mol per mol of magnesium contained in the heat treated solid product; (d) a step in which said phenol treated solid product is dryed by heating at a temperature between 10° C. and 100° C. under reduced pressure; and (e) another step in which the solid product heat treated under reduced pressure is treated further with a halogenated titanium compound at a temperature between room temperature and 150° C., the amount of halogenated titanium compound used is at least 0.01 mol per mol of magnesium contained in the heat treated solid product.
Claim 4
Dependent Claim
244 words
The catalytic component for polymerization of an α-olefin, prepared through steps including: (a) a step in which an organo-magnesium compound expressed by the generic formula of R'Mgx' (wherein R' represents a hydrocarbon group having 1 to 20 carbon atoms and X' either a halogen atom chosen out of chlorine, bromine and iodine or a hydrocarbon group having 1 to 20 carbon atoms) is allowed to react with carbon tetrahalide in the presence of an electron donor compound to obtain a solid product through a solid-liquid separation process, at a temperature between -50° C. and 100° C.; (b) a step in which the separated solid is heat treated with a carbon halide at a temperature between 40° C. and 80° C.; (c) a step in which the heat treated solid product is treated with phenols at a temperature between 90° C. and 180° C., the amount of phenols used is 0.01 to 10 mol per mol of magnesium contained in the heat treated solid product; (d) a step in which said phenol treated solid product is dryed by heating at a temperature between 10° C. and 100° C. under reduced pressure; and (e) another step in which the solid product heat treated under reduced pressure is treated further with a halogenated titanium compound at a temperature between room temperature and 150° C., the amount of halogenated titanium compound used is at least 0.01 mol per mol of magnesium contained in the heat treated solid product.
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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) | 1987-03-27 | 1987-09-26 | 1988-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-27 | 1991-09-26 | 1992-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-27 | 1995-09-26 | 1996-03-27 | $7700.00 | Window Closed / Lapsed |