Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1990-03-12
1992-06-30
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, 502114, 502115, 502117, 502120, 502121, 502123, 502124, 502125, 502126, 502127, 502129, 502132, 502133, 526124, 526129, C08F 4649
Patent
active
051263017
ABSTRACT:
A solid catalyst for polymerizing an olefin is prepared from an organometallic compound, a fine-particle carrier, an aluminoxane, a compound of group IVB transition metal in periodic table, and an olefin polymer produced in a preliminary polymerization. The catalyst has a high polymerization activity and is capable of producing an olefin polymer having a narrow molecular- weight distribution. When the catalyst is used for producing an olefin copolymer, the resulting copolymer has both narrow molecular-weight distribution and composition distribution.
REFERENCES:
patent: 4295991 (1981-10-01), Wristers
patent: 4558023 (1985-12-01), Brun et al.
patent: 4701432 (1987-10-01), Welborn
Kashiwa Norio
Toyota Akinori
Tsutsui Toshiyuki
Yoshitsugu Ken
Garvin Patrick P.
Mitsui Petrochemical Industries Inc.
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