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US 9,434,799 B2Granted
Procatalyst composition with substituted 1,2-phenylene aromatic diester internal donor and method
AssigneeW. R. Grace & Co.-Conn.
InventorsLinfeng Chen, Tak W. Leung, Tao Tao
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Abstract
Disclosed are procatalyst compositions having an internal electron donor which include a substituted phenylene aromatic diester and optionally an electron donor component. Ziegler-Natta catalyst compositions containing the present procatalyst compositions exhibit high activity and produce propylene-based olefins with broad molecular weight distribution.
Claims20
A procatalyst composition comprising:
- a combination of a magnesium moiety, a titanium moiety and an internal electron donor comprising a substituted phenylene aromatic diester having the structure (I):
- wherein:
- (A) R1-R14 are the same or different, each of R1-R14 is selected from the group consisting of hydrogen, a substituted hydrocarbyl group having 1 to 20 carbon atoms, an unsubstituted hydrocarbyl group having 1 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, a heteroatom, and combinations thereof, and at least one of R1-R14 is not hydrogen;
- and
- (B) at least one or two, or three, or four R groups of R1-R4 is selected from a substituted hydrocarbyl group having 1 to 20 carbon atoms, an unsubstituted hydrocarbyl group having 1 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, a heteroatom, and combinations thereof.
2 more elements
Dependencies are inferred from the claim text.