EP0393358A2
Expired / Lapsed
EP
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Process for producing homogeneous aluminoxane solution
Assignee: Idemitsu Kosan Co Ltd
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Filing: 1990-03-17
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Granted: —
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Expires: 2010-03-17
Abstract
Abstract The present invention provides a process for producing a homogeneous aluminoxane solution wherein an alkylaminoxane (A) obtained by reacting an organoaluminum compound with water and removing a solid residue by filtration is reacted with an organoaluminum compound (C) in the presence of an aromatic hydrocarbon solvent (B). According to the present invention, the gel-free homogeneous aluminoxane solution can be obtained and the catalytic activity thereof is not deteriorated during the storage.
Inventors
- 👤 Norio Tomotsu
- 👤 Masahiko Kuramoto
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 21:53
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/06; C07F5/061; C07F5/066; C07F5/068; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
45 words
A process for producing a homogeneous aluminoxane solution characterized in that an alkylaminoxane (A) obtained by reacting an organoaluminum compound with water and removing a solid residue by filtration is reacted with an organoaluminum compound (C) in the presence of an aromatic hydrocarbon solvent (B).
Claim 2
Dependent Claim
45 words
A process for producing a homogeneous aluminoxane solution characterized in that an alkylaminoxane (A) obtained by reacting an organoaluminum compound with water and removing a solid residue by filtration is reacted with an organoaluminum compound (C) in the presence of an aromatic hydrocarbon solvent (B).
Claim 3
Dependent Claim
26 words
A process according to Claim 1 wherein the alkylaluminoxane (A) is methylaluminoxane having a molecular weight determined by cryoscopic method with benzene of 500 to 4,000.
Claim 4
Dependent Claim
20 words
A process according to Claim 1 wherein the organoaluminum compound used in the preparation of the alkylaluminoxane (A) is trialkylaluminum.
Claim 5
Dependent Claim
18 words
A process according to Claim 1 wherein the aromatic hydrocarbon solvent is benzene, toluene, ethylbenzene, xylene or cumene.
Claim 6
Dependent Claim
20 words
A process according to Claim 1 wherein the organoaluminum compound (C) is an organoaluminum compound having a branched alkyl group.
Claim 7
Dependent Claim
30 words
A process according to Claim 1 wherein the molar ratio of the organoaluminum compound (C) to the alkylaluminoxane (A) to be reacted is 0.01/1 to 1/1 (in terms of aluminum).
Claim 8
Dependent Claim
30 words
A process according to Claim 1 wherein the molar ratio of the organoaluminum compound (C) to the alkylaluminoxane (A) to be reacted is 0.01/1 to 0.4/1 (in terms of aluminum).
Claim 9
Dependent Claim
30 words
A process according to Claim 1 wherein the molar ratio of the organoaluminum compound (C) to the alkyl-aluminoxane (A) to be reacted is 0.01/1 to 0.09/1 (in terms of aluminum).
Claim 10
Dependent Claim
32 words
A process according to Claim 1 wherein the concentration of the organoaluminum compound (C) and the alkylaluminoxane (A) in the aromatic hydrocarbon solvent is 0.01 to 5 mol/ℓ (in terms of aluminum).
References Cited (Backward Citations)
No citation records indexed.
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