Internal and external donor compounds for olefin polymerization catalysts II

1. A catalyst system for use in olefinic polymerization, comprising:

(i) a solid catalyst component comprising titanium, magnesium, halogen and an internal electron donor compound;

(ii) an organoaluminum compound; and

(iii) an alkyl benzoate derivative,

wherein the internal electron donor compound comprises a compound represented by a general formula (I):

wherein R 1 , R 2 , R 3 , and R 4 are identical or different and are each independently a substituted or unsubstituted hydrocarbon group, and R 1 , C 1 , and R 2 are a part of a substituted or unsubstituted cyclic or polycyclic structure comprising from about 5 to about 20 carbon atoms.

2. The catalyst system according to claim 1 , wherein the solid catalyst component comprises a titanium compound having at least one titanium-halogen bond and the internal electron donor compound supported on a magnesium halide crystal lattice.

3. The catalyst system according to claim 1 , wherein the solid catalyst component comprises a titanium compound having at least one titanium-halogen bond and the internal electron donor compound supported on a magnesium dichloride crystal lattice.

4. The catalyst system according to claim 2 or 3 , wherein the titanium compound is TiCl 4 or TiCl 3 .

5. A catalyst system for use in olefinic polymerization, comprising:

(i) a solid catalyst component comprising a reaction product of a titanium compound, a magnesium compound, and an internal electron donor compound;

(ii) an organoaluminum compound; and

(iii) an alkyl benzoate derivative,

wherein the internal electron donor compound comprises a compound represented by a general formula (I):

wherein R 1 , R 2 , R 3 , and R 4 are identical or different and are each independently a substituted or unsubstituted hydrocarbon group, and R 1 , C 1 , and R 2 are a part of a substituted or unsubstituted cyclic or polycyclic structure comprising from about 5 to about 20 carbon atoms.

6. The catalyst system according to claim 5 , wherein the magnesium compound is a magnesium halide, an alkoxy magnesium halide, an aryloxy magnesium halide, an aryloxy magnesium, or a carboxylic acid salt of magnesium.

7. The catalyst system according to claim 5 , wherein the titanium compound has a general formula: TiX n (OR) 4-n ,

wherein R is a hydrocarbon radical having 1 to about 20 carbon atoms, X is a halogen, and n is from 1 to 4.

8. The catalyst system of claim 1 , wherein the cyclic or polycylic structure comprises one or more substitutes selected from the group consisting of linear or branched alkyl groups comprising from 1 to about 18 carbon atoms, cycloaliphatic groups comprising from about 3 to about 18 carbon atoms, aryl groups comprising from about 6 to about 18 carbon atoms, alkylaryl groups comprising from about 7 to about 18 carbon atoms, and arylalkyl groups comprising from about 7 to about 18 carbon atoms.

9. The catalyst system of claim 1 or 5 , wherein the internal electron donor compound comprises at least one selected from the group consisting of 9-(alkylcarbonyl)-9′-alkoxymethylfluorene including 9-(methylcarbonyl)-9′-methoxymethylfluorene, 9-(methylcarbonyl)-9′-ethoxymethylfluorene, 9-(methylcarbonyl)-9′-propoxymethylfluorene, 9-(methylcarbonyl)-9′-butoxymethylfluorene, 9-(methylcarbonyl)-9′-pentoxymethylfluorene, 9-(ethylcarbonyl)-9′-methoxymethylfluorene, 9-(ethylcarbonyl)-9′-ethoxymethylfluorene, 9-(ethylcarbonyl)-9′-propoxymethylfluorene, 9-(ethylcarbonyl)-9′-butoxymethylfluorene, 9-(ethylcarbonyl)-9′-pentoxymethylfluorene, 9-(propylcarbonyl)-9′-methoxymethylfluorene, 9-(propylcarbonyl)-9′-ethoxymethylfluorene, 9-(propylcarbonyl)-9′-propoxymethylfluorene, 9-(propylcarbonyl)-9′-butoxymethylfluorene, 9-(propylcarbonyl)-9′-pentoxymethylfluorene, 9-(butylcarbonyl)-9′-methoxymethylfluorene, 9-(butylcarbonyl)-9′-ethoxymethylfluorene, 9-(butylcarbonyl)-9′-propoxymethylfluorene, 9-(butylcarbonyl)-9′-butoxymethylfluorene, 9-(butylcarbonyl)-9′-pentoxymethylfluorene, 9-(isobutylcarbonyl)-9′-methoxymethylfluorene, 9-(isobutylcarbonyl)-9′-ethoxymethylfluorene, 9-(isobutylcarbonyl)-9′-propoxymethylfluorene, 9-(isobutylcarbonyl)-9′-butoxymethylfluorene, 9-(isobutylcarbonyl)-9′-pentoxymethylfluorene, 9-(pentylcarbonyl)-9′-methoxymethylfluorene, 9-(pentylcarbonyl)-9′-ethoxymethylfluorene, 9-(pentylcarbonyl)-9′-propoxymethylfluorene, 9-(pentylcarbonyl)-9′-butoxymethylfluorene, 9-(pentylcarbonyl)-9′-pentoxymethylfluorene, 9-(hexylcarbonyl)-9′-methoxymethylfluorene, 9-(hexylcarbonyl)-9′-ethoxymethylfluorene, 9-(hexylcarbonyl)-9′-propoxymethylfluorene, 9-(hexylcarbonyl)-9′-butoxymethylfluorene, 9-(hexylcarbonyl)-9′-pentoxymethylfluorene, 9-(octylcarbonyl)-9′-methoxymethylfluorene, 9-(octylcarbonyl)-9′-ethoxymethylfluorene, 9-(oetylcarbonyl)-9′-propoxymethylfluorene, 9-(octylcarbonyl)-9′-butoxymethylfluorene, 9-(octylcarbonyl)-9′-pentoxymethylfluorene, 9-(i-octylcarbonyl)-9′-methoxymethylfluorene, 9-(i-octylcarbonyl)-9′-ethoxymethylfluorene, 9-(i-octylcarbonyl)-9′-propoxymethylfluorene, 9-(i-octylcarbonyl)-9′-butoxymethylfluorene, 9-(i-octylcarbonyl)-9′-pentoxymethylfluorene, 9-(nonylcarbonyl)-9′-methoxymethylfluorene, 9-(nonylcarbonyl)-9′-ethoxymethylfluorene, 9-(nonylcarbonyl)-9′-propoxymethylfluorene, 9-(nonylcarbonyl)-9′-butoxymethylfluorene, 9-(nonylcarbonyl)-9′-pentoxymethylfluorene; 9-(i-nonylcarbonyl)-9′-methoxymethylfluorene, 9-(i-nonylcarbonyl)-9′-ethoxymethylfluorene, 9-(i-nonylcarbonyl)-9′-propoxymethylfluorene, 9-(i-nonylcarbonyl)-9′-butoxymethylfluorene, 9-(i-nonylcarbonyl)-9′-pentoxymethylfluorene, 9-(2-ethyl-hexylcarbonyl)-9′-methoxymethylfluorene, 9-(2-ethyl-hexylcarbonyl)-9′-ethoxymethylfluorene, 9-(2-ethyl-hexylcarbonyl)-9′-propoxymethylfluorene, 9-(2-ethyl-hexylcarbonyl)-9′-butoxymethylfluorene, 9-(2-ethyl-hexylcarbonyl)-9′-pentoxymethylfluorene, 9-(phenylketone)-9′-methoxymethylfluorene, 9-(phenylketone)-9′-ethoxymethylfluorene, 9-(phenylketone)-9′-propoxymethylfluorene, 9-(phenylketone)-9′-butoxymethylfluorene, 9-(phenylketone)-9′-pentoxymethylfluorene, 9-(4-methylphenylketone)-9′-methoxymethylfluorene, 9-(3-methylphenylketone)-9″-methoxymethylfluorene, and 9-(2-methylphenylketone)-9′-methoxymethylfluorene.

10. The catalyst system according to claim 1 or 5 , wherein the alkyl benzoate derivative is of the general formula (II):

wherein R′ 1 is C 1 -C 6 linear or branched alkyl; and R′ 2 -R′ 6 are independently hydrogen, halogen, C 1 -C 6 linear or branched alkyl, or C 1 -C 6 linear or branched alkoxyl radicals.

11. The catalyst system according to claim 10 , wherein the alkyl benzoate derivative of the formula (II) comprises at least one selected from group consisting of methylbenzoate, ethylbenzoate, propylbenzoate, butylbenzoate, methyl-3-methylbenzoate, ethyl-3-methylbenzoate, propyl-3-benzoate, butyl-3-methylbenzoate, methyl-4-methylbenzoate, ethyl-4-methylbenzoate, propyl-4-methylbenzoate, butyl-4-methylbenzoate, methyl-3-ethylbenzoate, ethyl-3-ethylbenzoate, propyl-3-ethylbenzoate, butyl-3-ethylbenzoate, methyl-4-ethylbenzoate, ethyl-4-ethylbenzoate, propyl-4-ethylbenzoate, butyl-4-ethylbenzoate, methyl-3-propybenzoate, ethyl-3-propybenzoate, propyl-3-propylbenzoate, butyl-3-propylbenzoate, methyl-4-proplybenzoate, ethyl-4-propylbenzoate, propyl-4-propylbenzoate, butyl-4-propylbenzoate, methyl-3-methoxybenzoate, ethyl-3-methoxybenzoate, propyl-3-methoxybenzoate, butyl-3-methoxybenzoate, methyl-4-methoxybenzoate, ethyl-4-methoxybenzoate, propyl-4-methoxybenzoate, butyl-4-methoxybenzoate, methyl-3-ethoxybenzoate, ethyl-3-ethoxybenzoate, propyl-3-ethoxybenzoate, butyl-3-ethoxybenzoate, methyl-4-ethoxybenzoate, ethyl-4-ethoxybenzoate, propyl-4-ethoxybenzoate, butyl-4-ethoxybenzoate, methyl-3-propoxybenzoate, ethyl-3-propoxybenzoate, propyl-3-propoxybenzoate, butyl-3-propoxtbenzoate, methyl-4-propoxybenzoate, ethyl-4-propoxybenzoate, propyl-4-propoxybenzoate, butyl-4-propoxybenzoate, methyl-3-chlorobenzoate, ethyl-3-chlorobenzoate, propyl-3-chlorobenzoate, butyl-3-chlorobenzoate, methyl-4-chlorobenzoate, ethyl-4-chlorobenzoate, propyl-4-chlorobenzoate, butyl-4-chlorobenzoate, methyl-3-bromobenzoate, ethyl-3-bromobenzoate, propyl-3-bromobenzoate, butyl-3-bromobenzoate, methyl-4-bromobenzoate, ethyl-4-bromobenzoate, propyl-4-bromobenzoate, and butyl-4-bromobenzoate.

12. The catalyst system according claim 1 or 5 , wherein the solid catalyst component has a surface area (by B.E.T. method) between about 10 and about 1,000 m 2 /g.

13. The catalyst system according to claim 1 or 5 , wherein the organoaluminum compound is an alkyl-aluminum compound.

14. The catalyst system of claim 13 , wherein the alkyl-aluminum is trialkyl aluminum compound.

15. The catalyst system of claim 14 , wherein the trialkyl aluminum compound is selected from the group consisting of triethylaluminum, triisobutylaluminum, and tri-n-octylaluminum.

16. The catalyst system according to claim 1 or 5 , wherein the ratio of the solid catalyst component (i) to the organoaluminum compound (ii) and to the alkyl benzoate derivative (iii) is about 1:5-1000:1-500, in terms of molar ratio of titanium:aluminum:alkyl benzoate derivative.

17. A process for polymerizing or copolymerizing an olefin, comprising the steps of:

(i) providing the catalyst system according to claim 1 or 5 ;

(ii) polymerizing or copolymerizing the olefin in the presence of the catalyst system to form a polymer or a copolymer; and

(iii) recovering the polymer or the copolymer.

18. The process according to claim 17 , wherein the olefin is selected from the group consisting of ethylene, propylene, 1-butylene, 4-methyl-1-pentene, 1-hexene and 1-octene.