Components and catalysts for the polymerization of olefins

Details Components and catalysts for the polymerization of olefins Components and catalysts for the polymerization of olefins

1995-05-25

1997-12-16

Smith, Edward J.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Plural component system comprising a - group i to iv metal...

502120, 502125, 502134, 5261242, 5261245, 5261246, 5261248, 5263486, 526351, 526904, 526943, C08F 4634, C08F 1000

Patent

active

056984871

ABSTRACT:
The present invention relates to components of catalysts for the polymerization of olefins comprising a metallocene compound and a magnesium halide which have particular values of porosity and surface area. In particular the components of the invention have surface area (BET) greater than about 50 m.sup.2 /g, porosity (BET) greater than about 0.15 cm.sup.3 /g and porosity (Hg) greater than 0.3 cm.sup.3 /g, with the proviso that when the surface area is less than about 150 m.sup.2 /g, the porosity (Hg) is less than about 1.5 cm.sup.3 /g. The components of the invention are particularly suitable for the preparation of catalysts for the gas-phase polymerization of .alpha.-olefins.

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patent: 5106804 (1992-04-01), Bailly et al.
patent: 5132262 (1992-07-01), Rieger et al.
patent: 5139985 (1992-08-01), Barbe' et al.
patent: 5162278 (1992-11-01), Razavi

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