Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1996-11-18
1998-06-16
Wu, David W.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
502117, 502152, 502155, 526160, 526943, C08F 464
Patent
active
057670331
ABSTRACT:
The novel transition metal compound of the invention is represented by the following formula: ##STR1## wherein R.sup.1 and R.sup.2 are each a hydrogen atom or a hydrocarbon group of 1 to 3 carbon atoms;
X.sup.1 and X.sup.2 are each a halogen atom; and
Y is a divalent silicon-containing group selected from the group consisting of dimethylsilylene, diphenylsilylene and methylphenylsilylene. The transition metal compound is useful for an olefin polymerization catalyst with which a propylene (co)polymer having specific structure is prepared.
REFERENCES:
patent: 4769510 (1988-09-01), Kaminsky et al.
patent: 5243001 (1993-09-01), Winter et al.
patent: 5278264 (1994-01-01), Spaleck et al.
patent: 5304614 (1994-04-01), Winter et al.
patent: 5328969 (1994-07-01), Winter et al.
patent: 5332789 (1994-07-01), Tanaka et al.
patent: 5336746 (1994-08-01), Tsutsui et al.
Rubber Chemistry And Technology, pp. 781-804 (1971).
Macromolecules, vol. 8, No. 5, pp. 687-689, Sep.-Oct. (1975).
Makromol. Chem., Rapid Commun. 8, pp. 305-310 (1987).
Journal of Molecular Catalysis, 56, pp. 237-247 (1989).
Polymer, vol. 30, pp. 1350-1356, Jul. (1989).
Polymer Preprints, Japan, vol. 39, No. 6, (1990) (No English Translation).
Angewandte Chemie, Internat'l Ed., vol. 31, No. 10, Oct. 1992, Weinheim DE, XP000319626, W. Spaleck "High Molecular Weight . . . Zirconocene Catalysts".
J. Applied Polymer Science: Applied Polymer Symposium 52, pp. 159-172 (1993).
W. Kaminsky, "Metallocene Catalysts", SP'92--PE World Congress Dec, 1992.
Imuta Jun-ichi
Kawasaki Masaaki
Kiso Yoshihisa
Mizuno Akira
Saito Junji
Mitsui Petrochemical Industries Ltd.
Wu David W.
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