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EP0376145A2
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Method for producing a stereoregular polyolefin
Assignee: Tosoh Corp
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Filing: 1989-12-20
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Granted: —
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Expires: 2009-12-20
Abstract
Abstract A method for producing a stereoregular polyolefin in the presence of a catalyst comprising a transition metal compound and an organometallic compound, wherein a catalyst system is employed which comprises (i), (ii) and (iii): (A) a solid catalyst component obtained by reacting to a uniform solution containing (i) at least one member selected from the group consisting of metallic magnesium and an organic hydroxide compound and an oxygen-containing organic magnesium compound, (ii) a compound of Group IIIB of the Periodic Table, and (iii) an oxygen-containing organic silicon compound, (iv) at least one aluminum halide, to obtain a solid product, and reacting to the solid product, (v) an electron donative compound, and (vi) a titanium halide compound; (B) at least one member selected from the group consisting of organometallic compounds of metals of Groups IA, IIA, IIB, IIIB and IVB of the Periodic Table; and (C) an electron donative compound.
Inventors
- 👤 Daiji Hara
- 👤 Mitsuhiro Mori
- 👤 Yozo Kondo
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 10:39
CPC Classifications
C; C08; C08F; C08F4/00; C08F10/00; C08F2410/00; C08F2410/06
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
149 words
A method for producing a stereoregular polyolefin in the presence of a catalyst comprising a transition metal compound and an organometallic compound, wherein a catalyst system is employed which comprises: (A) a solid catalyst component obtained by reacting to a uniform solution containing (i), (ii) and (iii): (i) at least one member selected from the group consisting of metallic magnesium and an organic hydroxide compound, and an oxygen-containing organic magnesium compound, (ii) a compound of Group IIIB of the Periodic Table, and (iii) an oxygen-containing organic silicon compound, (iv) at least one aluminum halide, to obtain a solid product, and reacting to the solid product, (v) an electron donative compound, and (vi) a titanium halide compound; (B) at least one member selected from the group consisting of organometallic compounds of metals of Groups IA, IIA, IIB, IIIB and IVB of the Periodic Table; and (C) an electron donative compound.
Claim 2
Independent Claim
149 words
A method for producing a stereoregular polyolefin in the presence of a catalyst comprising a transition metal compound and an organometallic compound, wherein a catalyst system is employed which comprises: (A) a solid catalyst component obtained by reacting to a uniform solution containing (i), (ii) and (iii): (i) at least one member selected from the group consisting of metallic magnesium and an organic hydroxide compound, and an oxygen-containing organic magnesium compound, (ii) a compound of Group IIIB of the Periodic Table, and (iii) an oxygen-containing organic silicon compound, (iv) at least one aluminum halide, to obtain a solid product, and reacting to the solid product, (v) an electron donative compound, and (vi) a titanium halide compound; (B) at least one member selected from the group consisting of organometallic compounds of metals of Groups IA, IIA, IIB, IIIB and IVB of the Periodic Table; and (C) an electron donative compound.
Claim 3
Dependent Claim
20 words
The method according to Claim 1, wherein the compound of Group IIIB of the Periodic Table is a boron compound.
Claim 4
Dependent Claim
113 words
The method according to Claim 2, wherein the boron compound is represented by the formula R² m B(OR¹) n X 3-(m+n) wherein each of R¹ and R² is a hydrocarbon group having from 1 to 10 carbon atoms which is a straight chain or branched chain alkyl group, a cycloalkyl group, an arylalkyl group, an aryl group or an alkylaryl group, a halogenated hydrocarbon group, an amino-substituted hydrocarbon group or a hydrogen atom, and may contain a carbonyl group in its chain, and m and n are numbers satisfying 0 ≦ m ≦ 3, 0 ≦ n ≦ 3 and 0 ≦ m + n ≦ 3, and X is a halogen atom.
Claim 5
Independent Claim
25 words
The method according to any one of Claims 1 to 3, wherein the compound of Group IIIB of the Periodic Table is an aluminum compound.
Claim 6
Dependent Claim
92 words
The method according to Claim 4, wherein the aluminum compound is represented by the formula Al(OR¹) i X 3-i wherein R¹ is a hydrocarbon group having from 1 to 10 carbon atoms which is a straight chain or branched chain alkyl group, a cycloalkyl group, an arylalkyl group, an aryl group or an alkylaryl group, a halogenated hydrocarbon group, an amino-substituted hydrocarbon group or a hydrogen atom and may contain a carbonyl group in its chain, i is a number satisfying 0 < i ≦ 3, and X is a halogen atom.
Claim 7
Independent Claim
32 words
The method according to any one of Claims 1 to 5, wherein the compound of Group IIIB of the Periodic Table is a mixture of a boron compound and an aluminum compound.
Claim 8
Independent Claim
107 words
A method according to any one of Claims 1 to 6, wherein the oxygen- containing organic silicon compound is represented by the formula R³ p Si(OR⁴) q X 4-(p+q) wherein each of R³ and R⁴ is a hydrocarbon group having from 1 to 10 carbon atoms which is a straight chain or branched chain alkyl group, a cycloalkyl group, an arylalkyl group, an aryl group or an alkylaryl group, a halogenated hydrocarbon group, or a hydrogen atom, p and q are numbers satisfying 0 ≦ p ≦ 3, 1 ≦ q ≦ 4, and 1 ≦ p + q ≦ 4, and X is a halogen atom.
Claim 9
Independent Claim
53 words
The method according to any one of Claims 1 to 7, wherein the aluminium halide is represented by the formula AlR⁵ r X 3-r wherein R⁵ is a hydrocarbon group having from 1 to 20 carbon atoms, X is a halogen atom, and r is a number satisfying 0 < r ≦ 2.
Claim 10
Independent Claim
30 words
The method according to any one of Claims 1 to 8, wherein the reaction of the aluminum halide to the uniform solution is conducted in the presence of a surfactant.
Claim 11
Dependent Claim
35 words
The method according to Claim 9, wherein the surfactant is an ester obtained from a polyhydroxy alcohol having from 2 to 12 carbon atoms and a fatty acid having from 12 to 18 carbon atoms.
References Cited (Backward Citations)
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