EP0363029A2
Expired / Lapsed
EP
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Olefin polymerization catalyst component, olefin polymerization catalyst and process for the polymerization of olefins
Assignee: Mitsui Chemicals Inc
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Filing: 1989-09-13
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Granted: —
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Expires: 2009-09-13
Abstract
Abstract In accordance with the present invention, there are provided olefin polymerization catalyst components comprising an organoaluminum oxy-compound having less than 10 % in terms of Al atom of Al component dissolving in benzene kept at 60 DEG C, and olefin polymerization catalyst containing said olefin polymerization catalyst components. The olefin polymerization catalysts have excellent polymerization activities, and are capable of giving olefin (co)polymers having a narrow molecular weight distribution and a narrow composition distribution.
Inventors
- 👤 Mamoru Mitsui Petrochemical Ind. Ltd. Kioka
- 👤 Toshiyuki Mitsui Petrochemical Ind. Ltd. Tsutsui
- 👤 Akinori Mitsui Petrochemical Ind. Ltd. Toyota
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 23:21
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/02; C; C08; C08F; C08F10/00; Y; Y10; Y10S; Y10S526/00; Y10S526/943
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
28 words
An olefin polymerization catalyst component comprising an organoaluminum oxy-compound having less than 10% in terms of AI atom of an AI component dissolving in benzene kept at 60°C.
Claim 2
Dependent Claim
28 words
An olefin polymerization catalyst component comprising an organoaluminum oxy-compound having less than 10% in terms of AI atom of an AI component dissolving in benzene kept at 60°C.
Claim 3
Dependent Claim
26 words
A catalyst component according to claim 1 wherein the AI component dissolving in benzene kept at 60°C is less than 2% in terms of AI atom.
Claim 4
Dependent Claim
47 words
A catalyst component according to claim 1 or 2 wherein the ratio (D 1260 /D 1220 ) of an absorbance (D 1260 ) at 1260 cm -1 to an absorbance (D 1220 ) at 1220 cm- 1 , both obtained by infrared spectrophotometry, is less than 0.09/1.
Claim 5
Dependent Claim
27 words
A catalyst according to claim 1, 2 or 3 comprising [A] said organoaluminum oxy-compound, and [B] a transition metal compound containing a ligand having a cycloalkadienyl skeleton.
Claim 6
Dependent Claim
35 words
A catalyst according to claim 4 wherein the transition metal compound [B] is a transition metal compound containing at least two ligands having a cycloalkadienyl skeleton, said ligands being bonded together through lower alkylene groups.
Claim 7
Dependent Claim
14 words
A catalyst according to claim 4 or 5 further comprising [C] an organoaluminum compound.
Claim 8
Dependent Claim
98 words
A catalyst according to claim 6 wherein the organoaluminum compound [C] is an organoaluminum compound represented by the formula R 6 m AlX 3-m wherein R 6 is hydrocarbon of 1-12 carbon atoms, X is halogen and m is 1-3, or by the formula R 6 n AlY 3-n wherein R 6 is as defined above, Y is hydrogen, -OR 7 , -OSiR 8 3 , -OAIR 9 2 , -NR 12 2 or -SiR 13 3 n is 1-2 and R 7 -R 13 which may be the same or different, are each hydrogen, halogen or hydrocarbon.
Claim 9
Dependent Claim
28 words
A catalyst.according to claim 4, 5 or 6 further comprising [D] an aluminoxane having at least one hydrocarbon group other than n-alkyl group bonded to the aluminum atom.
Claim 10
Dependent Claim
23 words
A catalyst according to claim 8 wherein in [D] the hydrocarbon group other than n-alkyl group is branched chain alkyl, cycloalkyl or aryl.
Claim 11
Dependent Claim
30 words
A process for preparing an olefin polymer which comprises polymerizing or copolymerizing olefins in the presence of an olefin polymerization catalyst as claimed in any one of the preceding claims.
References Cited (Backward Citations)
No citation records indexed.
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