Procatalyst for polymerization of olefins

Patent metadata

Field	Value
Publication number	US-10160816-B2
Application number	US-201515314966-A
Country	US
Kind code	B2
Filing date	Jun 1, 2015
Priority date	Jun 2, 2014
Publication date	Dec 25, 2018
Grant date	Dec 25, 2018

Abstract

The present invention relates to a procatalyst comprising the compound represented by Formula (A), preferably the Fischer projection of formula (A) as an internal electron donor. The invention also relates to a process for preparing said procatalyst. Furthermore, the invention is directed to a catalyst system for polymerization of olefins comprising the said procatalyst, a co-catalyst and optionally an external electron donor; a process of making polyolefins by contacting at least one olefin with said catalyst system and to polyolefins obtainable by said process. The invention also relates to the use of said procatalyst in the polymerization of olefins. Moreover, the present invention relates to polymers obtained by polymerization using said procatalyst and to the shaped articles of said polymers.

First claim

The invention claimed is:

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

wherein: R 94 , R 95 , R 96 , R 97 , R 98 , and R 99 are each independently selected from hydrogen or a linear, branched or cyclic hydrocarbyl group selected from alkyl, alkenyl, aryl, aralkyl, or alkylaryl groups, and one or more combinations thereof;
each R 93 group is independently aryl having 6 to 20 carbon atoms.

2. The procatalyst according to claim 1 , wherein R 94 , R 95 , R 96 ,R 97 , R 98 , and R 99 are independently selected from a 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 group.

3. A procatalyst for polymerization of olefins, which comprises the compound represented by Formula A, as an internal electron donor,

wherein R 94 and R 95 is each a hydrogen atom and R 96 , R 97 , R 98 , and R 99 are independently selected from a 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 group; and
each R 93 group is independently a linear, branched or cyclic hydrocarbyl group selected from alkyl, alkenyl, aryl, aralkyl, or alkylaryl groups, and one or more combinations thereof.

4. The procatalyst according to claim 1 , wherein R 94 and R 95 is each a hydrogen atom, and when one of R 96 and R 97 and one of R 98 and R 99 has at least one carbon atom, then the other one of R 96 and R 97 and of R 98 and R 99 is each a hydrogen atom.

5. The procatalyst according to claim 1 , wherein each of the R 93 has 6 to 12 carbon atoms.

6. A procatalyst for polymerization of olefins, which comprises an internal electron donor,
wherein the internal electron donor is pentane-2,4-diyl diphenyl dicarbonate:

7. A process for preparing the procatalyst according to claim 1 , comprising contacting a magnesium-containing support with a halogen-containing titanium compound and an internal electron donor, wherein the internal electron donor is represented by Formula A,

wherein: R 94 , R 95 , R 96 , R 97 , R 98 , and R 99 are each independently selected from hydrogen or a linear, branched or cyclic hydrocarbyl group selected from alkyl, alkenyl, aryl, aralkyl, or alkylaryl groups, and one or more combinations thereof;
each R 93 group is independently aryl having 6 to 20 carbon atoms.

8. The process according to claim 7 , which comprises the steps of:
i) contacting a compound R 4 z ,MgX 4 2−z with an alkoxy- or aryloxy-containing silane compound to give a first intermediate reaction product, being a solid Mg(OR 1 ) x X 1 2−x , wherein: R 4 is the same as R 1 being a linear, branched or cyclic hydrocarbyl group independently selected from alkyl, alkenyl, aryl, aralkyl, alkoxycarbonyl or alkylaryl groups, and one or more combinations thereof, wherein said hydrocarbyl group may be substituted or unsubstituted, may contain one or more heteroatoms; X 4 and X 1 are each independently selected from the group of consisting of fluoride (F—), chloride (Cl—), bromide (Br—) or iodide (I—); z is in a range of larger than 0 and smaller than 2, being 0<z<2;
ii) optionally contacting the solid Mg(OR 1 ) x X 1 2−x obtained in step ii) with at least one activating compound selected from the group formed by activating electron donors and metal alkoxide compounds of formula M 1 (OR 2 ) v−w (OR 3 ) w or M 2 (OR 2 ) v−w (R 3 ) w , to obtain a second intermediate product; wherein: M 1 is a metal selected from the group consisting of Ti, Zr, Hf, Al or Si; v is the valency of M 4 ; M 2 is a metal being Si; v is the valency of M 2 ; R 2 and R 3 are each a linear, branched or cyclic hydrocarbyl group independently selected from alkyl, alkenyl, aryl, aralkyl, alkoxycarbonyl or alkylaryl groups, and one or more combinations thereof, wherein said hydrocarbyl group may be substituted or unsubstituted, may contain one or more heteroatoms, v being either 3 or 4 and w is smaller than v; and
iii) contacting the first or second intermediate reaction product, obtained respectively in step i) or ii), with a halogen-containing Ti-compound and said internal electron donor represented by a compound of Formula A.

9. The process according to claim 7 , wherein step iii further comprises contacting the first or second intermediate reaction product with an activator, selected from the group consisting of benzamides, alkylbenzoates, and mono-esters.

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

11. A process of making a polyolefin by contacting an olefin with the catalyst system according to claim 10 .

12. A method for the polymerization of an olefin, comprising:
polymerizing the olefin using of the compound represented by Formula A,
as an internal electron donor in a procatalyst for the polymerization of an olefin,

wherein: R 94 , R 95 , R 96 , R 97 , R 98 , and R 99 are the same or different and 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;
each R 93 group is independently aryl having 6 to 20 carbon atoms.

13. The method according to claim 12 , wherein each of R 93 is independently selected from the group consisting of aryl having 6 to 12 carbon atoms.

14. The method according to claim 12 , wherein R 94 and R 95 is each a hydrogen atom and R 96 , R 97 , R 98 , and R 99 are independently selected from a 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 group.

15. The method according to claim 12 , wherein the internal electron donor is pentane-2,4-diyl diphenyl dicarbonate:

16. The procatalyst according to claim 3 , wherein each of R 93 is independently selected from the group consisting of aryl having 6 to 12 carbon atoms.

17. The procatalyst according to claim 6 , wherein each of R 93 is independently selected from the group consisting of aryl having 6 to 12 carbon atoms.

18. The procatalyst according to claim 1 , wherein the internal electron donor is pentane-2,4-diyl diphenyl dicarbonate:

19. The procatalyst according to claim 1 , wherein R 94 and R 95 is each a hydrogen atom and R 96 , R 97 , R 98 , and R 99 are independently selected from a 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 group.

20. The procatalyst according to claim 3 , wherein R 96 , R 97 , R 98 , and R 99 are independently select

Assignees

• Sabic Global Technologies Bv
• Sainani Jaiprakash Brijlal
• Shirish Abhyankan
• Bukatov Gennadii Dimitrievich
• Zuideveld Martin Alexander
• Taftaf Mansour
• Batinas Geurts Aurora Alexandra

Inventors

• Sainani Jaiprakash Brijlal
• Abhyankar Shirish Shrikant
• Bukatov Gennadii Dimitrievich
• Zuideveld Martin Alexander
• Taftaf Mansour
• Batinas-Geurts Aurora Alexandra

Classifications

• C08F4/651 Primary

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

• C08F110/06 Primary

  Propene · CPC title

• C08F2500/12

  Melt flow index or melt flow ratio · CPC title

• C08F4/6565

  and magnesium or compounds thereof · CPC title