EP0611773A2
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EP
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Catalyst component for use in the polymerization of alpha-olefins and process for producing alpha-olefin polymers using the same
Assignee: Mitsubishi Chemical Corp
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Filing: 1994-02-18
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Granted: —
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Expires: 2014-02-18
Abstract
Abstract A catalyst component for use in the polymerization of α-olefins, comprising a compound represented by the following general formula [I] : wherein R 1 s represent a hydrogen atom, a C 1-6 hydrocarbon group or a C 1-12 hydrocarbon group containing silicon ; each of R 2 and R 3 independently represents a divalent group selected from the group consisting of a hydrocarbon group having 3 to 30 carbon atoms and a silicon-containing hydrocarbon group having 1 to 30 carbon atoms and 1 to 6 silicon atoms, provided that at least one of R 2 and R 3 is said silicon-containing hydrocarbon group ; Q represents a C 1-20 divalent hydrocarbon group, a silylene group, a silylene group with a C 1-20 hydrocarbon group, a germylene group, or a germylene group with a C 1-20 hydrocarbon group ; X and Y represent H, a halogen, a C 1-20 hydrocarbon group, or a C 1-20 hydrocarbon group containing oxygen, nitrogen or phosphorus; and M represents a Group IVB to VIB transition metal of the Periodic Table. Production of α-olefin polymers having a high melting point and a high molecular weight in a high yield and a process for producing a-olefin polymers is made possible upon the use of the catalyst.
Inventors
- 👤 Toshihiko C/O Mitsubishi Petrochem.Co.Ltd Sugano
- 👤 Toru C/O Mitsubishi Petrochemical Co. Ltd. Wada
- 👤 Tomohiko C/O Mitsubishi Petroch.Co.Ltd Takahama
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 04:55
CPC Classifications
C; C07; C07F; C07F17/00; C08; C08F; C08F10/00; C08F4/00; C08F4/42; C08F4/44; C08F4/60; C08F4/62; C08F4/64; C08F4/659; C08F4/65908; C08F4/65912; C08F4/6592; C08F4/65922; C08F4/65927
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
232 words
A catalyst component for use in the polymerization of a-olefins which comprises a compound represented by the following general formula [I]: wherein R l S each independently represent a hydrogen atom, a hydrocarbon group having 1 to 6 carbon atoms or a hydrocarbon group having 1 to 12 carbon atoms with a silicon atom contained therein; each of R 2 and R 3 independently represents a divalent group selected from the group consisting of a hydrocarbon group having 3 to 30 carbon atoms and a silicon-containing hydrocarbon group having 1 to 30 carbon atoms and 1 to 6 silicon atoms, provided that at least one of R 2 and R 3 is said silicon-containing hydrocarbon group; Q represents a divalent hydrocarbon group having 1 to 20 carbon atoms, a silylene group, a silylene group with a hydrocarbon group having 1 to 20 carbon atoms, a germylene group, or a germylene group with a hydrocarbon group having 1 to 20 carbon atoms, which group combines the two five-membered rings with each other; X and Y each independently represent a hydrogen atom, a halogen atom, a hydrocarbon group having 1 to 20 carbon atoms, or a hydrocarbon group having 1 to 20 carbon atoms with an oxygen atom, a nitrogen atom, a silicon atom or a phosphorus atom contained therein; and M represents a Group IVB to VIB transition metal of the Periodic Table.
Claim 2
Dependent Claim
232 words
A catalyst component for use in the polymerization of a-olefins which comprises a compound represented by the following general formula [I]: wherein R l S each independently represent a hydrogen atom, a hydrocarbon group having 1 to 6 carbon atoms or a hydrocarbon group having 1 to 12 carbon atoms with a silicon atom contained therein; each of R 2 and R 3 independently represents a divalent group selected from the group consisting of a hydrocarbon group having 3 to 30 carbon atoms and a silicon-containing hydrocarbon group having 1 to 30 carbon atoms and 1 to 6 silicon atoms, provided that at least one of R 2 and R 3 is said silicon-containing hydrocarbon group; Q represents a divalent hydrocarbon group having 1 to 20 carbon atoms, a silylene group, a silylene group with a hydrocarbon group having 1 to 20 carbon atoms, a germylene group, or a germylene group with a hydrocarbon group having 1 to 20 carbon atoms, which group combines the two five-membered rings with each other; X and Y each independently represent a hydrogen atom, a halogen atom, a hydrocarbon group having 1 to 20 carbon atoms, or a hydrocarbon group having 1 to 20 carbon atoms with an oxygen atom, a nitrogen atom, a silicon atom or a phosphorus atom contained therein; and M represents a Group IVB to VIB transition metal of the Periodic Table.
Claim 3
Dependent Claim
26 words
The catalyst component as claimed in claim 1, wherein the metal M in the compound is selected from the group consisting of titanium, zirconium and hafnium.
Claim 4
Dependent Claim
14 words
The catalyst component as claimed in claim 2, wherein the metal M is zirconium.
Claim 5
Dependent Claim
41 words
The catalyst component as claimed in any one of claims 1 to 3, wherein each of R 2 and R 3 is the silicon-containing hydrocarbon group wherein the silicon is a member of the ring fused with the five membered ring.
Claim 6
Dependent Claim
20 words
The catalyst component as claimed in any one of claims 1 to 4, wherein R l is a hydrogen atom.
Claim 7
Dependent Claim
26 words
The catalyst component as claimed in any one of claims 1 to 4, wherein R l is an alkyl group of 1 to 4 carbon atoms.
Claim 8
Dependent Claim
28 words
The catalyst component as claimed in any one of claims 1 to 6, wherein Q is selected from the group consisting of alkylene, cycloalkylene, arylene and alkylsilylene groups.
Claim 9
Dependent Claim
27 words
The catalyst component as claimed in any one of claims 1 to 7, wherein Q is selected from the group consisting of an alkylene and an alkylsilylene.
Claim 10
Dependent Claim
20 words
The catalyst component as claimed in claim 8, wherein Q is selected from the group consisting of dimethylsilylene and ethylene.
Claim 11
Dependent Claim
12 words
The catalyst component as claimed in claim 9, wherein Q is dimethylsilylene.
Claim 12
Dependent Claim
12 words
The catalyst component as claimed in claim 9, wherein Q is ethylene.
Claim 13
Dependent Claim
71 words
A catalyst for the polymerization of α-olefins which comprises in combination: Component (A) which is a transition metal compound represented by the formula [I] set forth in any one of claims 1 to 11; and Component (B) which is a member selected from the group consisting of an aluminum oxy compound, a Lewis acid and an anionic compound which can react with Component (A) to convert Component (A) to a cation.
Claim 14
Dependent Claim
46 words
The catalyst as claimed in claim 12, wherein the aluminum oxy compound of Component (B) is selected from the compounds respectively represented by the formulae: wherein p is a number of 0 to 40, R 4 is hydrogen, a hydrocarbon group or a halogen-containing hydrocarbon group.
Claim 15
Dependent Claim
44 words
A process for producing an α-olefin polymer which comprises contacting an α-olefin of 2 to 20 carbon atoms with a catalyst comprising in combination Component (A) and Component (B) as claimed in any one of claim 12 to 13 thereby to polymerize the α-olefin.
Claim 16
Dependent Claim
16 words
The process as claimed in claim 14, wherein the a-olefin has 2 to 10 carbon atoms.
Claim 17
Dependent Claim
16 words
The process as claimed in claim 15, wherein the a-olefin has 3 to 10 carbon atoms.
References Cited (Backward Citations)
No citation records indexed.
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