Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1993-05-19
1995-07-18
Pal, Asok
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
502104, 502117, 502118, 502152, 502155, C08F 4646, C08F 1000
Patent
active
054341159
ABSTRACT:
Novel catalysts for polymerization of ethylene or .alpha.-olefins, comprising a metallocene, an organoaluminum compound an ionic compound, and a boron compound, or comprising an ionic metallocene, an organoaluminum compound and a boron compound. Process for polymerization of ethylene or .alpha.-olefins by use of the above catalysts.
REFERENCES:
patent: 5153157 (1992-10-01), Hlatky et al.
Rapra Abstracts, vol. 14, No. 25, Dec. 5, 1977, AN 7705114L, G. A. Beikhol, et al., "Polymerization of Ethylene in Ethyl Chloride Over Complex Catalyst System Modified by Acids and Lewis Bases".
Die Makromolekulare Chemie, Rapid Communications, vol. 13, No. 5, May 1992, Claudio Pellecchia, et al., "Polymerization of Ethylene and Propene in the Presence of Organometallic Compounds of Titanium and Zirconium Activated with Tris(Pentafluorophenyl)Boron", pp. 277-281.
Hasegawa Saiki
Sone Makoto
Yamada Satoru
Yano Akihiro
Griffin Walter D.
Pal Asok
Tosoh Corporation
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