Catalysts for the polymerization and copolymerization of ethylen

Details Catalysts for the polymerization and copolymerization of ethylen Catalysts for the polymerization and copolymerization of ethylen

1983-06-16

1985-02-05

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, 502121, 502122, 502123, 502128, 502132, 502134, 502153, 502154, 502162, 502167, 502168, 502169, 502226, 502126, 526225, C08F 402

Patent

active

044979045

ABSTRACT:
The present invention relates to catalysts for the polymerization and copolymerization of ethylene, characterized in that they comprise a support based on magnesium chloride and possibly on aluminium chloride, of spheroidal shape, having a mean diameter by mass comprised between 10 and 100 microns and with a narrow particle size distribution, such that the ratio of the mean diameter by mass to the mean diameter by number is less than or equal to 3, on which support there has been precipitated a derivative of a transition metal of groups IV, V and VI of the Periodic Table of Elements, and a polymerization process utilizing the said catalysts.

REFERENCES:
patent: 3135809 (1964-06-01), Bosmajian
patent: 4220554 (1980-09-01), Scata et al.
patent: 4250288 (1981-02-01), Lowery et al.
patent: 4252670 (1981-02-01), Caunt et al.
patent: 4314912 (1982-02-01), Lowery et al.
patent: 4329253 (1982-05-01), Goodall et al.
patent: 4364851 (1982-12-01), Shiga et al.
patent: 4399054 (1983-08-01), Ferraris et al.
patent: 4414132 (1983-11-01), Goodall et al.

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