Alkene polymerization process and catalyst compositions therefor

Details Alkene polymerization process and catalyst compositions therefor Alkene polymerization process and catalyst compositions therefor

1990-10-29

1991-12-03

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...

502 9, 502105, 502108, 502121, 502123, 502124, 502125, 502127, 526125, C08F 4655

Patent

active

050700561

ABSTRACT:
Catalyst compositions enabling the production of polyalkenes with improved bulk density are prepared by combining the following catalyst components in the following order of addition: first introducing an electron donor component, then adding a reaction product of a di-alkylaluminium halide and a solid component comprising a magnesium di-halide, an electron donor and a halide of tetravalent titanium and lastly adding a tri-alkylaluminium compound.

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