Title:
ORGANIC ALUMINO-OXY COMPOUNDS AND CATALYSTS FOR THE PREPARATION O POLYMERS CONTAINING THE SAME
Document Type and Number:
WIPO Patent Application WO/1997/023488
Kind Code:
A1
Abstract:
An organic alumino-oxy compound having an A1 to A2 ratio of 0.1 or below in the 27Al-NMR spectrum of the compound wherein A1 is the area of the region enclosed by both the segment, which joins the minimum point found between two consecutive curves (a) and (b) respectively containing the peaks appearing near 150 ppm and 60 ppm in the spectrum to the point at which the curve (b) comes into contact with the baseline of the spectrum, and the curve (b), and A2 is the area of the region enclosed by the curves (a) and (b) and the baseline; another organic alumino-oxy compound containing insolubles in a solvent mixture of toluene with hexane (2 : 5 by volume) at 30 �C or below in an amount of 5 % or above in terms of aluminum atom; and a catalyst for the preparation of polymers comprising any of the above organic alumino-oxy compounds and a transition metal compound. The above catalyst is a homogeneous one exhibiting high and stable catalytic activity and being useful for the polymerization of olefins and styrenes.
Inventors:
KONDOH TSUYOSHI (JP)
NAGANUMA SHOJI (JP)
TOMOTSU NORIO (JP)
NAGANUMA SHOJI (JP)
TOMOTSU NORIO (JP)
Application Number:
PCT/JP1996/003699
Publication Date:
July 03, 1997
Filing Date:
December 19, 1996
Export Citation:
Assignee:
IDEMITSU PETROCHEMICAL CO (JP)
KONDOH TSUYOSHI (JP)
NAGANUMA SHOJI (JP)
TOMOTSU NORIO (JP)
KONDOH TSUYOSHI (JP)
NAGANUMA SHOJI (JP)
TOMOTSU NORIO (JP)
International Classes:
C07F5/06; C08F4/642; C08F4/643; C08F10/00; C08F12/04; C08G79/10; C08F4/6592; (IPC1-7): C07F5/06; C08F4/642; C08F10/00; C08F12/00; C08G79/10
Foreign References:
| JPH04266891A | 1992-09-22 | |||
| JPH032187A | 1991-01-08 | |||
| JPH0559068A | 1993-03-09 | |||
| JPH0449293A | 1992-02-18 | |||
| JPH02172991A | 1990-07-04 |
Other References:
See also references of EP 0811628A4
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