Soluble magnesium dihalide complex, preparation and use

Details Soluble magnesium dihalide complex, preparation and use Soluble magnesium dihalide complex, preparation and use

2005-04-05

2005-04-05

Bell, Mark L. (Department: 1755)

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

Catalyst or precursor therefor

Organic compound containing

Reexamination Certificate

active

06875721

ABSTRACT:
The invention relates to a complex comprising a magnesium dihalide and an electron donor. It is a complex of the magnesium dihalide and the electron donor and has the formula (I):in-line-formulae description="In-line Formulae" end="lead"?MgX2·[R(OR′)n]m  (I)in-line-formulae description="In-line Formulae" end="tail"?wherein MgX2is the magnesium dihalide and R(OR′)nis the electron donor, X is a halogen, R is an n-valent C1-C20aliphatic group, an n-valent C7-C27araliphatic group or an n-valent C2-C22acylic group, R′ is a C1-C20alkyl group or a C7-C27aralkyl group, n is a number from 1 to 6 and m is defined as a number 0.5≦m≦2.0. The invention also relates to the preparation process of such a complex, as well as the use thereof for the preparation of olefin polymerization catalyst components.

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