Solid catalyst components for olefin polymerization and methods of making and using the same
View Patent ↗Solid catalyst components are disclosed including titanium, magnesium, halogen and an internal electron donor compound having at least one substituted 2-methoxy-1-naphthoate, and catalyst systems containing the catalyst solid components, organoaluminum compounds, and organosilicon compounds. Further, methods of making the catalyst components and the catalyst systems are disclosed as well as methods of polymerizing or copolymerizing alpha-olefins using the catalyst systems.
1. A solid catalyst component for use in olefinic polymerization, comprising:
a titanium compound,
a magnesium compound, and
an internal electron donor compound,
wherein
the internal electron donor compound comprises a compound represented by formula (II):
wherein:
R 1 is selected from the group consisting of H; a halogen; and a saturated or nonsaturated, linear or branched, cyclic or acyclic C 1 to C 22 hydrocarbyl group, wherein the hydrocarbyl group optionally contains a —O—, —NH—, or —S— group in place of a —CH 2 — group or a —N═ or —S═ group in place of a —C═ group, and wherein the hydrocarbyl group is optionally substituted by one or more halogens; wherein
R 2 is selected from the group consisting of H; a halogen; and a saturated or nonsaturated, linear or branched, cyclic or acyclic C 1 to C 22 hydrocarbyl group, wherein the hydrocarbyl group optionally contains a —O—, —NH—, or —S— group in place of a —CH 2 — group or a —N═ or —S═ group in place of a —C═ group, and wherein the hydrocarbyl group is optionally substituted by one or more halogens; and wherein
R 5 and R 6 are each independently selected from the group consisting of H; a halogen; and a saturated or non-saturated, linear or branched, cyclic or acyclic C 1 to C 22 hydrocarbyl group, wherein the hydrocarbyl group optionally contains a —O—, —NH—, or —S— group in place of a —CH 2 — group or a —N═ or —S═ group in place of a —C═ group, and wherein the hydrocarbyl group is optionally substituted by one or more halogens; and
R 9 , R 10 , R 11 , and R 12 are each independently selected from the group consisting of H; a halogen; and a saturated or non-saturated, linear or branched, cyclic or acyclic C 1 to C 22 hydrocarbyl group, wherein the hydrocarbyl group optionally contains a —O—, —NH—, or —S— group in place of a —CH 2 — group or a —N═ or —S═ group in place of a —C═ group, and wherein the hydrocarbyl group is optionally substituted by one or more halogens.
2. The solid catalyst component of claim 1 , wherein
R 1 is selected from the group consisting of H; a halogen; and a linear or branched C 1 -C 20 alkyl group;
R 2 is selected from the group consisting of H; a halogen; and a linear or branched C 1 -C 20 alkyl group; and
R 5 , R 6 , R 9 , R 10 , R 11 , and R 12 are each H.
3. The solid catalyst component of claim 1 , wherein R 1 and R 2 are independently selected from the group consisting of H and a linear or branched C 1 -C 20 alkyl group.
4. The solid catalyst component of claim 1 , wherein R 2 is methyl.
5. The solid catalyst component of claim 1 , wherein the internal electron donor compound is 2-methoxy-1-naphthoic acid, a branched or linear alkyl 2-methoxy-1-naphthoate, or a branched or linear methyl 2-alkyloxy-1-naphthoate, or a combination of any two or more thereof.
6. The solid catalyst component of claim 1 , wherein the solid catalyst component contains only one internal electron donor compound.
7. The solid catalyst component of claim 1 , further comprising an additional internal electron donor compound.
8. The solid catalyst component of claim 1 , wherein the titanium compound has at least one titanium-halogen bond and the magnesium compound is a magnesium halide, wherein the magnesium halide forms a crystal lattice, and wherein the internal electron donor compound is supported on the magnesium halide crystal lattice.
9. The solid catalyst component of claim 8 , wherein the magnesium halide crystal lattice is a magnesium dichloride crystal lattice.
10. The solid catalyst component of claim 8 , wherein the titanium compound is TiCl 4 or TiCl 3 .
11. A catalyst system for use in olefinic polymerization, the catalyst system comprising:
the solid catalyst component of claim 1 ;
an organoaluminum compound; and
optionally an organosilicon compound.
12. The catalyst system of claim 11 , wherein the organoaluminum compound is an alkyl-aluminum compound.
13. The catalyst system of claim 12 , wherein the alkyl-aluminum compound is a trialkyl aluminum compound.
14. The catalyst system of claim 13 , wherein the trialkyl aluminum compound is selected from the group consisting of triethylaluminum, triisobutylaluminum, and tri-n-octylaluminum, and a combination of any two or more thereof.
15. The catalyst system of claim 11 , wherein the organosilicon compound is present and represented by formula (IV):
R n Si(OR′) 4-n (IV)
wherein
each R and R′ independently represent a hydrocarbon group, and n is an integer from 0 to 3.
16. The catalyst system of claim 11 , wherein the organosilicon compound is represented by formula (V):
SiRR′ m (OR″) 3-m (V)
wherein R independently represents a cyclic hydrocarbon or substituted cyclic hydrocarbon group, wherein each R′ and R″ independently represent a hydrocarbon group, and wherein m is an integer from 0 to 2.
17. A process of polymerizing or copolymerizing an olefin monomer, the process comprising:
polymerizing or copolymerizing the olefin monomer in the presence of the catalyst system of claim 11 to form a polymer or a copolymer; and
recovering the polymer or the copolymer.
18. The process of claim 17 , wherein the olefin monomer is selected from the group consisting of ethylene, propylene, 1-butylene, 4-methyl-1-pentene, 1-hexane, 1-octene, and a combination of any two or more thereof.