US4442224A
Expired / Lapsed
US
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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: 1984-04-10
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Expires: 2002-06-09
Abstract
Abstract An α-olefin polymerizing catalytic component is obtained by treating, with alcohol and/or phenol, a solid product obtained by allowing an organo-magnesium compound expressed by a generic formula of R'MgX' (wherein R' represents a hydro-carbon group having 1 to 20 carbon atoms and X' a halogen atom selected from the group consisting of chlorine, bromine and iodine or a hydrocarbon group having 1 to 20 carbon atoms) to react with a halogenating agent in the presence of an electron donor; by treating the treated matter with a halogen-containing titanium compound, either after heating under reduced pressure or without such heating; and by treating the product further with a mixture or a complex consisting of an organo-aluminum compound, an organic acid ester and a poly-siloxane. Homo- or co-polymerization of an α-olefin is carried out in the presence of a catalyst system comprising the catalytic component and an organo-aluminum compound.
Inventors
- 👤 Masaru Takitani
- 👤 Shizuo Tomiyasu
- 👤 Keikichi Baba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:04
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
201 words
A catalytic component for polymerizing an α-olefin, prepared by the following steps: (a) reacting an organo-magnesium compound with a halogenating agent in the presence of an electron donor compound at a temperature between -50° C. and 100° C. to obtain a solid product; the organo-magnesium compound being expressed by the formula R'MgX', wherein R' is a hydrocarbon group having 1 to 20 carbon atoms, and X' is a halogen atom selected from the group consisting of chlorine, bromine and iodine or a hydrocarbon group having 1 to 20 carbon atoms; (b) treating the solid product with at least one of an alcohol and a phenol for at least 0.1 hour at a temperature above the melting point of the at least one of an alcohol and a phenol; (c) treating the resulting product from step (b) with at least 0.01 mol of a halogen-containing titanium compound, per mol of magnesium in the resulting product from step (b), at a temperature between room temperature and 150° C.; and (d) treating the resulting product from step (c) with a mixture or complex consisting of an organo-aluminum compound, a carboxylic acid ester and a polysiloxane, at a temperature between 0° C. and 100° C.
Claim 2
Dependent Claim
201 words
A catalytic component for polymerizing an α-olefin, prepared by the following steps: (a) reacting an organo-magnesium compound with a halogenating agent in the presence of an electron donor compound at a temperature between -50° C. and 100° C. to obtain a solid product; the organo-magnesium compound being expressed by the formula R'MgX', wherein R' is a hydrocarbon group having 1 to 20 carbon atoms, and X' is a halogen atom selected from the group consisting of chlorine, bromine and iodine or a hydrocarbon group having 1 to 20 carbon atoms; (b) treating the solid product with at least one of an alcohol and a phenol for at least 0.1 hour at a temperature above the melting point of the at least one of an alcohol and a phenol; (c) treating the resulting product from step (b) with at least 0.01 mol of a halogen-containing titanium compound, per mol of magnesium in the resulting product from step (b), at a temperature between room temperature and 150° C.; and (d) treating the resulting product from step (c) with a mixture or complex consisting of an organo-aluminum compound, a carboxylic acid ester and a polysiloxane, at a temperature between 0° C. and 100° C.
Claim 3
Dependent Claim
231 words
An α-olefin polymerization catalytic component prepared by the following steps: (a) reacting an organo-magnesium compound with a halogenating agent in the presence of an electron donor compound at a temperature between -50° C. and 100° C. to obtain a solid product; the organo-magnesium compound being expressed by the formula R'MgX', wherein R' is a hydrocarbon group having 1 to 20 carbon atoms, and X' is a halogen atom selected from the group consisting of chlorine, bromine and iodine or a hydrocarbon group having 1 to 20 carbon atoms; (b) treating the solid product with at least one of an alcohol and a phenol for at least 0.1 hour at a temperature above the melting point of the at least one of an alcohol and a phenol; (c) treating with resulting product from step (b) with at least 0.01 mol of a halogen-containing titanium compound, per mol of magnesium in the resulting product from step (b), at a temperature between room temperature and 150° C.; and (d) drying the resulting product of step (c) for 1-10 hours at an absolute pressure not exceeding 500 mmHg and at a temperature between 10° C. and and 100° C.; and (e) treating the resulting product from step (d) with a mixture or a complex consisting of an organo-aluminum compound, and carboxylic acid ester and a polysiloxane, at a temperature between 0° C. and 100° C.
Claim 4
Dependent Claim
231 words
An α-olefin polymerization catalytic component prepared by the following steps: (a) reacting an organo-magnesium compound with a halogenating agent in the presence of an electron donor compound at a temperature between -50° C. and 100° C. to obtain a solid product; the organo-magnesium compound being expressed by the formula R'MgX', wherein R' is a hydrocarbon group having 1 to 20 carbon atoms, and X' is a halogen atom selected from the group consisting of chlorine, bromine and iodine or a hydrocarbon group having 1 to 20 carbon atoms; (b) treating the solid product with at least one of an alcohol and a phenol for at least 0.1 hour at a temperature above the melting point of the at least one of an alcohol and a phenol; (c) treating with resulting product from step (b) with at least 0.01 mol of a halogen-containing titanium compound, per mol of magnesium in the resulting product from step (b), at a temperature between room temperature and 150° C.; and (d) drying the resulting product of step (c) for 1-10 hours at an absolute pressure not exceeding 500 mmHg and at a temperature between 10° C. and and 100° C.; and (e) treating the resulting product from step (d) with a mixture or a complex consisting of an organo-aluminum compound, and carboxylic acid ester and a polysiloxane, at a temperature between 0° C. and 100° C.
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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) | 1987-04-10 | 1987-10-10 | 1988-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-10 | 1991-10-10 | 1992-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-10 | 1995-10-10 | 1996-04-10 | $7700.00 | Window Closed / Lapsed |