Patent EP0206753A1 successfully refreshed from Google Patents.
EP0206753A1
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Catalyst for polymerization of olefins
Assignee: Tonen General Sekiyu KK
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Filing: 1986-06-18
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Granted: —
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Expires: 2006-06-18
Abstract
Abstract A catalyst for polymerization of olefins which comprises a vanadium compound of the formula:(where R<sup>1</sup> is an alkyl group or aryl group having 1 to 8 carbon atoms; and R<sup>2</sup> is an alkyl group or aryl group having from 1 to 8 carbon atoms, or hydrogen) and the organoaluminum compound of the formula R<sub>2</sub>AIX (where R is a hydrocarbon group having 1 to 8 carbon atoms, and X is a halogen atom).
Inventors
- 👤 Shigeo Suzuki
- 👤 Yoshiharu Doi
- 👤 Kazuo Soga
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 20:11
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
14 words
A catalyst system comprising a vanadium chelate of a beta-ketoaldehyde and an organoaluminum compound.
Claim 2
Dependent Claim
14 words
A catalyst system comprising a vanadium chelate of a beta-ketoaldehyde and an organoaluminum compound.
Claim 3
Dependent Claim
78 words
The catalyst system of claim 1 wherein the vanadium chelate is of the formula: wherein R 1 , is an alkyl or aryl group having 1 to 8 carbon atoms and R 2 is an alkyl or aryl group having from 1 to 8 carbon atoms or hydrogen and the organoaluminum compound is represented by the formula R 2 AlX wherein R is a hydrocarbyl group having from 1 to 8 carbon atoms and X is a halogen.
Claim 4
Dependent Claim
23 words
The catalyst system of claim 2 wherein the vanadium chelate is one of V(2-methyl-3-oxobutanalate) 3 , V(3-oxobutanalate)3, V(2-ethyl-3-oxopentanalate) 3 and Y(2-phenyi-3-oxobutanalate) 3 .
Claim 5
Dependent Claim
28 words
The catalyst system in accordance with claim 2 wherein the organoaluminum compound is one of dimethyl aluminum chloride, diethyl aluminum chloride, diethyl aluminum bromide and diisobutyl aluminum chloride.
Claim 6
Dependent Claim
25 words
The catalyst system of claim 2 wherein the range of organoaluminum compound to vanadium chelate is in the range of 10-1,000:1 on a mol basis.
Claim 7
Dependent Claim
26 words
A living polymerization process comprising polymerizing one or more olefins in the presence of a catalyst system as claimed in any of claims 1 to 5.
References Cited (Backward Citations)
US3349064A
Cited
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