Catalyst composition for polymerization of olefins

Patent metadata

Field	Value
Publication number	US-9663596-B2
Application number	US-201414762279-A
Country	US
Kind code	B2
Filing date	Jan 28, 2014
Priority date	Jan 31, 2013
Publication date	May 30, 2017
Grant date	May 30, 2017

Abstract

A catalyst composition comprising a monoester, the compound represented by formula (I) as an internal electron donor, and optionally an additional internal electron donor selected from a group consisting of diesters and diethers,

wherein: R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are hydrogen, straight, branched and cyclic alkyl having at most 20 carbon atoms and aromatic substituted and unsubstituted hydrocarbyl having 6 to 20 carbon atoms, R 7 is a straight, branched and cyclic alkyl having at most 20 carbon atoms and aromatic substituted and unsubstituted hydrocarbyl having 6 to 20 carbon atoms, and R 8 is an aromatic substituted and unsubstituted hydrocarbyl having 6 to 20 carbon atoms. Also described is a process for preparing the polymerization catalyst composition, a polymerization catalyst system comprising the catalyst composition, a co-catalyst and optionally an external electron donor; and use of the catalyst system for polymerization of olefins.

First claim

The invention claimed is:

1. A catalyst composition for polymerization of olefins comprising a monoester and 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 having at most 20 carbon atoms and aromatic substituted and unsubstituted hydrocarbyl having 6 to 20 carbon atoms;
R 7 is selected from the group consisting of straight, branched and cyclic alkyl having at most 20 carbon atoms and aromatic substituted and unsubstituted hydrocarbyl having 6 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.

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, methyl, ethyl, propyl, isopropyl, butyl, tert-butyl, phenyl, trifluoromethyl and halophenyl.

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

4. The catalyst composition according to claim 1 , wherein R 7 is selected from a group consisting of methyl, ethyl, propyl, isopropyl, butyl, tert-butyl, phenyl, benzyl, substituted benzyl and halophenyl and/or wherein R 8 is substituted or unsubstituted phenyl, benzyl, naphthyl, ortho-tolyl, para-tolyl or anisol.

5. The catalyst composition according to claim 1 , wherein the monoester is an acetate or a benzoate.

6. The catalyst composition according to claim 1 , comprising a magnesium-containing support, a halogen-containing titanium compound, said monoester and said internal electron donor according to formula (I).

7. The catalyst composition according to claim 1 , further comprising a second additional internal electron donor, wherein the second electron donor is selected from the group consisting of diesters and diethers.

8. The catalyst composition according to claim 6 , further comprising the second internal electron donor, wherein the second internal electron donor is selected from the group consisting of diesters and diethers, wherein the molar ratio of the additional internal electron donor to magnesium of said magnesium-containing support is between 0.02 and 0.15.

9. A process for preparing a catalyst composition, comprising contacting a magnesium-containing support with a halogen-containing titanium compound, a monoester, a first internal electron donor represented by formula (I), and optionally a second internal electron donor selected from a group consisting of diesters and diethers,

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 having at most 20 carbon atoms and aromatic substituted and unsubstituted hydrocarbyl having 6 to 20 carbon atoms;
R 7 is selected from the group consisting of straight, branched and cyclic alkyl having at most 20 carbon atoms and aromatic substituted and unsubstituted hydrocarbyl having 6 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.

10. The process according to claim 9 , 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;
ii) contacting the first intermediate reaction product with at least one activating compound selected from the group of electron donors and compounds of formula M(OR 10 ) v-w (OR 11 ) w wherein M is Ti, Zr, Hf, Al or Si, or 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, the monoester, the compound represented by formula (I) as the first internal electron donor, and optionally the diester or diether as the second internal electron donor.

11. A catalyst composition manufactured by the process according to claim 9 .

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

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

14. A catalyst composition for the polymerization of olefins, comprising
an acetate or benzoate monoester;
a compound represented by formula (I) as a first 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, methyl, ethyl, propyl, isopropyl, butyl, tert-butyl, phenyl, trifluoromethyl and halophenyl,
R 7 is selected from the group consisting of methyl, ethyl, propyl, isopropyl, butyl, tert-butyl, phenyl, benzyl, substituted benzyl and halophenyl, and
R 8 is selected from the group consisting of substituted or unsubstituted phenyl, benzyl, naphthyl, ortho-tolyl, para-tolyl or anisol;

a magnesium-containing support;
a halogen-containing titanium compound; and
optionally a second internal electron donor selected from a group consisting of diesters and diethers.

15. The catalyst composition of claim 14 , wherein
the monoester is ethyl acetate, amyl acetate or ethyl benzoate;
R 1 and R 2 are each a hydrogen atom; and
when one of R 3 and R 4 has at least one carbon atom then the other one of R 3 and R 4 is hydrogen and wherein when R 5 and R 6 has at least one carbon atom then the other one of R 5 and R 6 is a hydrogen atom.

16. A process for the manufacture of the catalyst composition of claim 14 , 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;
ii) contacting the first intermediate reaction product with at least one activating compound selected from the group of electron donors and a compound of the formula 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, the monoester, the compound represented by formula (I) as the first internal electron donor, and optionally the second i

Assignees

• Saudi Basic Ind Corp

Inventors

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

Classifications

• C08F10/06 Primary

  Propene · CPC title

• C07C233/23

  with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by a carbon atom of a ring other than a six-membered aromatic ring · CPC title

• C08F110/06 Primary

  Propene · CPC title

• C08F4/655

  with aluminium or compounds thereof · CPC title

• C08F2500/04

  Broad molecular weight distribution, i.e. Mw/Mn > 6 · CPC title