Procatalyst composition with substituted 1,2-phenylene aromatic diester internal donor and method
View Patent ↗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.
1. 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) R 1 -R 14 are the same or different, each of R 1 -R 14 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 R 1 -R 14 is not hydrogen; and
(B) at least one or two, or three, or four R groups of R 1 -R 4 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. The procatalyst composition of claim 1
wherein at least one of R 5 -R 14 is selected from the group consisting of 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.
3. The procatalyst composition of claim 1 wherein at least one of R 5 -R 14 is selected from the group consisting of 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.
4. The procatalyst composition of claim 1 wherein at least one of R 5 -R 9 and at least one of R 10 -R 14 is selected from the group consisting of 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.
5. The procatalyst composition of claim 1 wherein R 1 and R 3 are the same or different and each is selected from the group consisting of a C 1 -C 8 alkyl group, a C 3 -C 6 group, a cycloalkyl group, and a substituted C 3 -C 6 cycloalkyl group.
6. The procatalyst composition of claim 1 wherein R 1 and R 3 are the same or different and each is selected from the group consisting of a methyl group, an ethyl group, a n-propyl group, an isopropyl group, a n-butyl group, a t-butyl group, an isobutyl group, a sec-butyl group, a 2,4,4-trimethylpentan-2-yl group, a cyclopentyl group, a cyclohexyl group, and combinations thereof.
7. The procatalyst composition of claim 1 wherein R 2 and R 4 are hydrogen.
8. The procatalyst composition of claim 1 wherein R 1 is a methyl group and R 3 is a t-butyl group.
9. The procatalyst composition of claim 1 wherein each of R 1 and R 3 is an isopropyl group.
10. The procatalyst composition of claim 1 wherein R 1 , R 3 and R 4 are hydrogen and R 2 is selected from the group consisting of a substituted hydrocarbyl group having 1 to 20 carbon atoms, an unsubstituted hydrocarbyl group having 1 to 20 carbon atoms, and combinations thereof.
11. The procatalyst composition of claim 10 wherein R 2 is selected from the group consisting of C 1 -C 8 alkyl group, a C 3 -C 6 cycloalkyl group, and a substituted C 3 -C 6 cycloalkyl group.
12. The procatalyst composition of claim 10 wherein R 2 is selected from the group consisting of a methyl group, an ethyl group, a n-propyl group, an isopropyl group, a t-butyl group, an isobutyl group, a sec-butyl group, a 2,4,4-trimethylpentan-2-yl group, a cyclopentyl group, and a cyclohexyl group.
13. The procatalyst composition of claim 11 wherein R 2 is selected from the group consisting of a methyl group and a t-butyl group.
14. The procatalyst composition of claim 1 wherein R 2 and R 3 are hydrogen and R 1 and R 4 are the same or different, each of R 1 and R 4 is selected from the group consisting of a substituted hydrocarbyl group having 1 to 20 carbon atoms, an unsubstituted hydrocarbyl group having 1 to 20 carbon atoms, and combinations thereof.
15. The procatalyst composition of claim 14 wherein R 1 and R 4 are the same or different and each is selected from the group consisting of a C 1 -C 8 alkyl group, a C 3 -C 6 cycloalkyl group, and a substituted C 3 -C 6 cycloalkyl group.
16. The procatalyst composition of claim 14 wherein R 1 and R 4 are the same or different and each is selected from the group consisting of a methyl group, an ethyl, an n-propyl group, an isopropyl group, a sec-butyl group, an isobutyl group, a cyclopentyl group, and a cyclohexyl group, and combinations thereof.
17. The procatalyst composition of claim 1 comprising an electron donor component selected from the group consisting of a phthalate, a benzoate, a diether, and combinations thereof.
18. A catalyst composition comprising:
the procatalyst composition of claim 1 ; and
a cocatalyst.
19. The catalyst composition of claim 18 comprising a member selected from the group consisting of an external electron donor, an activity limiting agent, and combinations thereof.
20. A process for producing an olefin-based polymer comprising:
contacting, under polymerization conditions, an olefin with the catalyst composition of claim 18 ; and
forming an olefin-based polymer.