INTERNAL DONOR STRUCTURE FOR OLEFIN POLYMERIZATION CATALYSTS AND METHODS OF MAKING AND USING SAME

摘要

The presently disclosed and claimed inventive concept(s) relates to solid catalyst components comprising titanium, magnesium, halogen and an internal electron donor compound having at least one ester group and at least one alkoxy group, and catalyst systems containing the catalyst solid components, organoaluminum compounds, and organosilicon compounds. The presently disclosed and claimed inventive concept(s) further relates to methods of making the catalyst components and the catalyst systems, and methods of polymerizing or copolymerizing alpha-olefins using the catalyst systems.

主权项

1. A solid catalyst component for use in olefinic polymerization, comprising: titanium, magnesium, halogen and an internal electron donor compound,
wherein the internal electron donor compound comprises a compound represented by a general formula (I): wherein R1 is a cycloaliphatic group comprising from about 3 to about 20 carbon atoms, an aryl group comprising from about 6 to about 20 carbon atoms, an alkylaryl group comprising from about 7 to about 20 carbon atoms, or an arylalkyl group comprising from about 7 to about 20 carbon atoms; and R2 and R3 are identical or different and are each independently a substituted or unsubstituted hydrocarbyl having 1 to about 20 carbon atoms.