Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1994-02-17
1995-10-03
Wu, David W.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526119, 526129, 526153, 526160, 526904, 5263486, 5263484, 502113, 502120, 502152, C08F 464
Patent
active
054553164
ABSTRACT:
The present invention relates to a solid catalyst composed of a specific solid catalyst component [A-1], the catalyst containing the solid catalyst and the olefin polymerization process using the solid catalyst, in which the solid catalyst component [A-1] comprises; (a-1) a particulate carrier composed of a specific oxide of a metal; (a-2) an organoaluminum oxy compound; and (a-3) a specific transition metal compound containing a specific ligand, wherein the organoaluminum oxy compound (a-2) and the transition metal compound (a-3) are supported on the particulate carrier (a-1).
The catalysts are applicable to a suspension polymerization and a vapor phase polymerization, and capable of preparing spherical olefin polymers excellent in particle characteristics at high polymerization activity.
REFERENCES:
patent: 4921825 (1990-05-01), Kioka et al.
patent: 5021382 (1991-06-01), Malpass, Jr.
patent: 5064802 (1991-11-01), Stevens et al.
patent: 5252529 (1993-10-01), Ueda et al.
Database WPIL Section Ch, Week 8703, 6 Dec. 1986 Derwent Publications Ltd., London, GB; Class A17, AN 87-018462 & JP-A-61 276 805 (Asahi Chemical Ind KK).
Tsutsui Toshiyuki
Yamamoto Kunio
Yoshitsugu Ken
Mitsui Petrochemical Industries Ltd.
Wu David W.
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