Catalyst composition for polymerization of olefins

Patent metadata

Field	Value
Publication number	US-10059656-B2
Application number	US-201415104822-A
Country	US
Kind code	B2
Filing date	Dec 19, 2014
Priority date	Dec 20, 2013
Publication date	Aug 28, 2018
Grant date	Aug 28, 2018

Abstract

A catalyst composition including the compound of Formula I as an internal electron donor,

wherein:
R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are independently selected from a group consisting of hydrogen, straight, branched and cyclic alkyl and aromatic substituted and unsubstituted hydrocarbyl having 1 to 20 carbon atoms; R 7 is selected from a group consisting of straight, branched and cyclic alkyl and aromatic substituted and unsubstituted hydrocarbyl having 1 to 20 carbon atoms; and R 8 is selected from a group consisting of aromatic substituted and unsubstituted hydrocarbyl having 6 to 20 carbon atoms. Also disclosed is a process for preparing said polymerization catalyst composition; a polymerization catalyst system comprising said catalyst composition, a co-catalyst and optionally an external electron donor; a polyolefin obtainable by the process; and use of the compound of Formula I as in internal electron donor in catalysts for polymerization of olefins.

First claim

The invention claimed is:

1. A catalyst composition for the polymerization of olefins, which catalyst composition comprises the compound represented by Formula I as an internal electron donor,

wherein:
R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are the same or different and are independently selected from the group consisting of hydrogen, straight, branched and cyclic alkyl and aromatic substituted and unsubstituted hydrocarbyl having 1 to 20 carbon atoms;
R 7 is selected from the group consisting of straight, branched and cyclic alkyl and aromatic substituted and unsubstituted hydrocarbyl having 1 to 20 carbon atoms; and
R 8 is selected from the group consisting of aromatic substituted and unsubstituted hydrocarbyl having 6 to 20 carbon atoms;
N is nitrogen atom; O is oxygen atom; and C is carbon atom.

2. The catalyst composition according to claim 1 , wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are independently selected from the group consisting of hydrogen, C 1 -C 10 straight and branched alkyl; C 3 -C 10 cycloalkyl; C 6 -C 10 aryl; and C 7 -C 10 alkaryl and aralkyl groups.

3. The catalyst composition according to claim 1 , wherein R 1 and R 2 are each a hydrogen atom and R 3 , R 4 , R 5 and R 6 are independently selected from the group consisting of C 1 -C 10 straight and branched alkyl; C 3 -C 10 cycloalkyl; C 6 -C 10 aryl; and C 7 -C 10 alkaryl and aralkyl groups.

4. The catalyst composition according to claim 1 , wherein when one of R 3 and R 4 and one of R 5 and R 6 has at least one carbon atom, then the other one of R 3 and R 4 and of R 5 and R 6 is each a hydrogen atom.

5. The catalyst composition according to claim 1 , wherein R 7 is selected from the group consisting of methyl, ethyl, propyl, isopropyl, butyl, t-butyl, phenyl, benzyl, substituted benzyl and halophenyl groups.

6. The catalyst composition according to claim 1 , wherein R 8 is selected from the group consisting of C 6 -C 10 aryl; and C 7 -C 10 alkaryl and aralkyl groups.

7. The catalyst composition according claim 1 , wherein the internal electron donor is selected from the group consisting of 4-[benzoyl(methyl)amino]pentan-2-yl benzoate; 2,2,6,6-tetramethyl-5-(methylamino)heptan-3-ol dibenzoate; 4-[benzoyl (ethyl)amino]pentan-2-yl benzoate and 4-(methylamino)pentan-2-yl bis (4-methoxy)benzoate).

8. A process for preparing the catalyst composition according to claim 1 , comprising contacting a magnesium-containing support with a halogen-containing titanium compound and an internal electron donor according to Formula I.

9. The process according to claim 8 , which comprises:
i) contacting a compound R 9 z MgX 2-z wherein R 9 is aromatic, aliphatic or cyclo-aliphatic group containing 1 to 20 carbon atoms, X is a halide, and z is in a range of larger than 0 and smaller than 2, with an alkoxy- or aryloxy-containing silane compound to give a first intermediate reaction product, which is a compound Mg(OR 1 ) x X 2-x in a solid form, wherein x is in a range of larger than 0 and smaller than 2;
ii) contacting the compound Mg(OR 1 ) x X 2-x in a solid form with at least one activating compound selected from the group consisting of electron donors and compounds of formula M(OR 10 ) v-w (OR 11 ) w , wherein M is Ti, Zr, Hf, Al or Si and M(OR 10 ) v-w (R 11 ) w , wherein M is Si, each R 10 and R 11 , independently, represent an alkyl, alkenyl or aryl group, v is the valency of M, v being either 3 or 4 and w is smaller than v to give a second intermediate reaction product; and
iii) contacting the second intermediate reaction product with a halogen-containing Ti-compound, an internal electron donor represented by Formula I,

wherein:
R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are the same or different and are independently selected from the group consisting of hydrogen, straight, branched and cyclic alkyl and aromatic substituted and unsubstituted hydrocarbyl having 1 to 20 carbon atoms;
R 7 is selected from the group consisting of straight, branched and cyclic alkyl and aromatic substituted and unsubstituted hydrocarbyl having 1 to 20 carbon atoms; and
R 8 is selected from the group consisting of aromatic substituted and unsubstituted hydrocarbyl having 6 to 20 carbon atoms;
N is nitrogen atom; O is oxygen atom; and C is carbon atom.

10. A catalyst composition obtained by the process according to claim 8 .

11. A polymerization catalyst system comprising the catalyst composition according to claim 1 , a co-catalyst and optionally an external electron donor.

12. A process of making a polyolefin, comprising contacting an olefin with the catalyst system according to claim 11 .

13. The catalyst composition according to claim 3 , wherein R 3 , R 4 , R 5 and R 6 are independently selected from C 1 -C 10 straight and branched alkyl and phenyl.

14. The catalyst composition according to claim 6 , wherein R 8 is selected from the group consisting of substituted or unsubstituted phenyl, benzyl, naphthyl, ortho-tolyl, para-tolyl or anisol groups.

15. The process according to claim 9 , wherein the first intermediate reaction product is contacted with an alcohol and a titanium tetraalkoxide in step ii).

16. A polymerization catalyst system comprising the catalyst composition according to claim 7 , a co-catalyst and optionally an external electron donor.

17. The catalyst composition according to claim 10 , wherein
R 1 and R 2 are each a hydrogen atom;
R 3 , R 4 , R 5 and R 6 are selected from the group consisting of methyl, ethyl, propyl, isopropyl, butyl, t-butyl, or phenyl groups;
R 7 is selected from the group consisting of methyl, ethyl, propyl, isopropyl, butyl, t-butyl, phenyl, benzyl, substituted benzyl and halophenyl groups; and
R 8 is phenyl.

18. A polymerization catalyst system comprising the catalyst composition according to claim 17 , a co-catalyst and optionally an external electron donor.

Assignees

• Saudi Basic Ind Corp
• Sabic Global Technologies Bv

Inventors

• Taftaf Mansour I
• Sainani Jaiprakash Brijlal
• Zakharov Vladimir Aleksandrovich
• Bukatov Gennadii Dimitrievich
• Patel Vimalkumar Mahendrabhai
• Sergeev Sergei Andreevich
• Zuideveld Martin Alexander
• Batinas-Geurts Aurora Alexandra
• Ghalit Nourdin

Classifications

• C08F2410/01

  Additive used together with the catalyst, excluding compounds containing Al or B · CPC title

• C08F4/651 Primary

  Pretreating with non-metals or metal-free compounds · CPC title

• B01J2531/007

  Promoter-type Additives · CPC title

• C07C233/69 Primary

  of an acyclic saturated carbon skeleton · CPC title

• C08F2500/15

  Isotactic · CPC title