Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1990-07-13
1992-01-07
Garvin, Patrick P.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
502103, 526165, C08F 4642, C08F 468, C08F 469
Patent
active
050792059
ABSTRACT:
The invention is a catalyst system including a Group IVB, VB or VIB transition metal hydrocarbyloxide component and an alumoxane component which may be employed in liquid, slurry or bulk phase reactors to polymerize ethylene and .alpha.-olefins to produce a high molecular weight, narrow molecular weight distribution homo- and co-polymer.
REFERENCES:
patent: 4536484 (1985-08-01), Lacombe et al.
patent: 4701432 (1987-10-01), Welborn
Chemical Abstract 105:173246z of JP 61-141708 to Ube Industries.
Chemical Abstract 108:222271b of JP 63-003008 to Indemitsu Kosan.
Chemical Abstract 107:96316j of JP 62-072631 to Mitsui, "Oligomerization of Alpha Olefins," 1987.
Chemical Abstract 99:105887s of Polish Patent PL 116,247, Nowakowska et al., "Olefin Polymerization," 1982.
Chemical Abstract 108:151944s on an article by Oliva, L. and Pellechia, C., "Isotactic Polypropylene by Polymerization of Propene in the Presence of Some Achiral Soluble Transition Metal Compounds and Methylaluminoxane," Makromol. Chem., Rapid Commun., 9(2), pp. 51-5 (1988).
Miyatake, T.; Mizunuma, K.; Seki, Y.; Kakugo, M., "2,2'-Thoibis(6-Tert-Butyl-4-Methylphenoxy)Titanium or Zirconium Complex-Methylalumoxane Catalysts for Polymerization of Olefins," Makromol. Chem., Rapid Commun., 10, 349-352 (1989).
Longo, P., Pellecchia, C., "Isotactic Polypropylene by Polymerization of Propene in the Presence of Some Archial Soluble Transition Metal Compounds and Methylaluminoxane," Makromolo. Chem., Rapid Commun., 9, 51-55 (1988).
Exxon Chemical Patents Inc.
Garvin Patrick P.
Kurtzman M. B.
Sher Jaimes
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