Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1992-12-28
1995-01-24
Sneed, Helen M. S.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
502103, 502117, B01J 3100
Patent
active
053842987
ABSTRACT:
A catalyst for polymerization of an olefin, is provided which contains a solid catalyst component (A) obtained by supporting a transition metal compound having formula (1): ##STR1## onto a solid inorganic compound, and then washing the solid inorganic compound with a nonaqueous solvent capable of dissolving the transition metal compound, where M is a transition metal of Group 4b; X.sup.1 and X.sup.2 are, independently, a halogen, hydrogen, an alkylalkoxy group, a saturated or unsaturated alkyl group; R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are, independently, hydrogen or a saturated or unsaturated C.sub.1-100 alkyl group; m is an integer of 1 to 6; and p and q are, independently, an integer of 0 to 4, and a catalyst component (B) containing an organic aluminum compound having formula (2): ##STR2## where 1, is an integer of 2 to 100, R.sup.5 is a C.sub.1-6 alkyl group, and/or an organic aluminum compound having formula (3) ##STR3## where 1' is an integer of 2 to 100, and R.sup.5 is a C.sub.1-6 alkyl group. A process for producing an olefin polymer is also provided in which this catalyst is employed. The catalyst is prepared with low amounts of organic aluminoxane, yet has high activity.
REFERENCES:
patent: 5003019 (1991-03-01), Ishimaru et al.
patent: 5026797 (1991-06-01), Takahashi
Journal of Polymer Science Part A: Polymer Chemistry Edition, vol. 29, No. 11, Oct. 1991, pp. 1603-1607, J. C. W. Chien, et al., "Olefin Copolymerization With Matallocene Catalysts III. Supported Metallocene/Methylaluminoxane Catalyst For Olefin Copolymerization".
Die Makromolekulare Chemie, Rapid Communications, vol. 12, No. 6, Jun. 1991, pp. 367-372 M. Kaminaka, et al., "Polymerization Of Propene With The Catalyst Systems Composed of Al.sub.2 O.sub.3 -- or MgCl.sub.2 -Supported Et(IndH.sub.4).sub.2 ZrCl.sub.2 and AlR.sub.3 (R.dbd.CH.sub.3, C.sub.2 H.sub.5)".
Inahara Kiyoshi
Yano Akihiro
Irzinski F. D.
Sneed Helen M. S.
Tosoh Corporation
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