Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1983-07-25
1985-02-12
Garvin, Patrick
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
502110, 502115, 502120, 502122, 502131, 526140, 526150, 2604297, C08F 464
Patent
active
044991991
ABSTRACT:
An improved titanium catalyst is produced by contacting a titanium tetrahalide such as TiCl.sub.4 with a catalyst precursor prepared by reacting a treating compound selected from mercaptans and tin hydroxides with an organometal such as a dialkyl magnesium compound. The resulting catalyst can either be supported or unsupported and it has been found to give high productivity and good particle size control in the production of olefin polymer such as polyethylene and also found to give a broad spectrum of molecular weight polymers including polymers having ultra high molecular weight and also narrow distribution polymers particularly suited for injection molding.
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patent: 3787384 (1974-01-01), Stevens et al.
patent: 3809657 (1974-05-01), Urham et al.
patent: 4173547 (1979-11-01), Graff
Garvin Patrick
Phillips Petroleum Company
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