Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1991-11-22
1993-05-18
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...
502117, 502126, 502226, 423498, 526125, C08F 4654
Patent
active
052121321
ABSTRACT:
Porous particles of MgCl.sub.2 having the form of essentially regular polyhedrons with six or eight faces in which the paired symmetrically opposite faces are essentially parallel, two of which faces are large and elongated and form the top face and the bottom face of a polyhedron such that on each of them the longest diagonal (D) is larger than the shortest distance (d) separating two opposite sides, which large elongated faces are surrounded essentially perpendicularly by the other essentially rectangular faces that form the sides of the said polyhedron, the length of the smaller side (e) of each of the said essentially rectangular faces being less than the shortest distance (d) separating the two opposite sides of the large elongated faces, catalytic components supported on the particles, catalyst systems utilizing the catalytic products, process for making the particles, and polyolefins obtained utilizing the catalytic systems.
REFERENCES:
patent: 3135809 (1964-06-01), Bosmajian
patent: 3591656 (1971-07-01), Kroll
patent: 4588703 (1986-05-01), Cowan et al.
patent: 4971937 (1990-11-01), Albizzati et al.
Brun Claude
Duranel Laurent
Soto Thierry
Spitz Roger
Atochem
Garvin Patrick P.
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