Components and catalysis for the polymerization of olefins

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

2005-03-08

2009-06-09

Lu, Caixia (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C502S115000, C502S126000, C502S127000, C502S132000

Reexamination Certificate

active

07544748

ABSTRACT:
The present invention relates to a solid catalyst component for the polymerization of olefins CH2═CHR in which R is hydrogen or a hydrocarbon radical with 1-12 carbon atoms, comprising Mg, Ti, halogen and an electron donor selected from β-keto-ester derivatives of a particular formula. Said catalyst components when used in the polymerization of olefins, and in particular of propylene, are capable to give polymers in high yields and with high isotactic index expressed in terms of high xylene insolubility.

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