Solid catalyst component for olefin polymerization, catalyst for olefin polymerization, and method for producing olefin polymer

Patent metadata

Field	Value
Publication number	US-11192965-B2
Application number	US-201616070105-A
Country	US
Kind code	B2
Filing date	Dec 26, 2016
Priority date	Jan 14, 2016
Publication date	Dec 7, 2021
Grant date	Dec 7, 2021

Abstract

Provided is a solid catalyst component for olefin polymerization comprising an electron-donating compound other than a phthalate, the solid catalyst component being equal in the olefin-polymerizing activity and in the primary physical properties of the resulting polymer such as stereoregularity and molecular weight distribution to those with use of a phthalate as an electron-donating compound. A solid catalyst component for olefin polymerization comprises a magnesium atom, a titanium atom, a halogen atom, an ester compound (A) represented by a general formula (1) and a diester compound (B) represented by a general formula (2), whereina ratio represented by the following expression:(content (mass %) of ester compound (A)/content (mass %) of diester compound (B))is 0.05 to 50.

First claim

The invention claimed is:

1. A solid catalyst component for olefin polymerization comprising a magnesium atom, a titanium atom, a halogen atom, an ester compound (A) represented by the following general formula (1):
R 1 —O—C(═O)—CR 2 R 3 —CR 4 R 5 —O—R 6   (1)

wherein R 1 and R 6 are each a hydrocarbon group having 1 to 24 carbon atoms and may be the same or different from each other, and R 2 to R 5 are each a hydrogen atom or a hydrocarbon group having 1 to 24 carbon atoms and may be the same or different from each other, and a diester compound (B) represented by the following general formula (2):
R 7 R 8 C═C(COOR 9 )(COOR 10 )  (2)

wherein R 7 and R 8 are each a hydrogen atom or a hydrocarbon group having 1 to 24 carbon atoms and may be the same or different from each other, and R 9 and R 10 are each a hydrocarbon group having 1 to 24 carbon atoms and may be the same or different from each other, wherein a ratio represented by the following expression:
(content (mass %) of ester compound (A)/content (mass %) of diester compound (B))

is 0.05 to 50.

2. The solid catalyst component for olefin polymerization according to claim 1 , wherein at least one of the hydrocarbon groups having 1 to 24 carbon atoms constituting the R 1 to R 10 is a group selected from a linear alkyl group having 1 to 24 carbon atoms, a branched alkyl group having 3 to 24 carbon atoms, a vinyl group, a linear alkenyl group having 3 to 20 carbon atoms, a branched alkenyl group having 3 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, a cycloalkenyl group having 3 to 20 carbon atoms, and an aromatic hydrocarbon group having 6 to 20 carbon atoms.

3. The solid catalyst component for olefin polymerization according to claim 1 , wherein at least one of the R 3 to R 5 is a hydrogen atom.

4. The solid catalyst component for olefin polymerization according to claim 1 , wherein the R 7 is an aromatic hydrocarbon group.

5. A catalyst for olefin polymerization comprising:
(I) the solid catalyst component for olefin polymerization according to claim 1 ;
(II) an organoaluminum compound represented by the following general formula (3):
R 11 p AlQ 3-p   (3)

wherein R 11 is an alkyl group having 1 to 6 carbon atoms; Q is a hydrogen atom or a halogen atom; p is a real number satisfying 0<p≤3; if a plurality of R 11 are present, R 11 may be the same or different from each other; and if a plurality of Q are present, Q may be the same or different from each other; and

(III) an external electron-donating compound.

6. The catalyst for olefin polymerization according to claim 5 , wherein the external electron-donating compound (III) is one or more selected from:
an organosilicon compound represented by the following general formula (4):
R 12 q Si(OR 13 ) 4-q   (4)

wherein R 12 is any of a linear alkyl group having 1 to 12 carbon atoms, a branched alkyl group haying 3 to 12 carbon atoms, a vinyl group, an alkenyl group having 3 to 12 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, and an aromatic hydrocarbon group having 6 to 12 carbon atoms, and q is an integer satisfying 0≤q≤3, and if q is 2 or more, a plurality of R 12 may be the same or different from each other; and R 13 represents any of a linear alkyl group having 1 to 4 carbon atoms, a branched alkyl group having 3 to 4 carbon atoms, a vinyl group, an alkenyl group having 3 to 12 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, and an aromatic hydrocarbon group having 6 to 12 carbon atoms, and a plurality of R 13 may be the same or different from each other; and
an organosilicon compound represented by the following general formula (5):
(R 14 R 15 N) s SiR 16 ) 4-s   (5)

wherein R 14 and R 15 are each any of a hydrogen atom, a linear alkyl group having 1 to 12 carbon atoms, a branched alkyl group having 3 to 12 carbon atoms, a vinyl group, alkenyl group having 3 to 12 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, and an aromatic hydrocarbon group having 6 to 12 carbon atoms, and R 14 and R 15 may be the same or different from each other and may be bonded to each other to form a ring; and
R 16 is any of a linear alkyl group having 1 to 12 carbon atoms or a branched alkyl group having 3 to 12 carbon atoms, a vinyl group, an alkenyl group having 3 to 12 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, an aromatic hydrocarbon group having 6 to 12 carbon atoms, a linear alkoxy group having 1 to 12 carbon atoms or a branched alkoxy group having 3 to 12 carbon atoms, a vinyloxy group, an allyloxy group having 3 to 12 carbon atoms, and an aryloxy group having 6 to 12 carbon atoms, and if a plurality of R 16 are present, each R 16 may be the same or different from each other, and s is an integer of 1 to 3.

7. The catalyst for olefin polymerization according to claim 5 , wherein the external electron-donating compound (III) is a diether compound represented by the following general formula (6);
R 17 R 18 R 19 COCH 2 (R 23 R 24 C)CH 2 OCR 20 R 21 R 22   (6)

wherein R 17 to R 22 are each any of a hydrogen atom, a linear alkyl group having 1 to 6 carbon atoms, a branched alkyl group having 3 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, and a phenyl group, and may be the same or different from each other; and R 23 and R 24 are each any of a hydrogen atom, a linear alkyl group having 1 to 6 carbon atoms, a branched alkyl group having 3 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, and a phenyl group, and may be the same or different from each other and may also be bonded to each other to form a ring.

8. The catalyst for olefin polymerization according to claim 6 , wherein the organosilicon compound is one or more selected from phenyltrimethoxysilane, t-butylmethyldimethoxysilane, t-butylethyldimethoxysilane, diisopropyldimethoxysilane, isopropylisobutyl dimethoxysilane, diisopentyldimethoxysilane, diphenyldimethoxysilane, dicyclopentyldimethoxysilane, cyclohexylmethyldimethoxysilane, tetramethoxysilane, tetraethoxysilane, t-butylmethylbis(ethylamino)silane, bis(ethylamino)dicyclohexylsilane, dicyclopentylbis(ethylamino)silane, bis(perhydroisoquinolino)dimethoxysilane, and diethylaminotriethoxysilane.

9. The catalyst for olefin polymerization according to claim 7 , wherein the diether compound is one or more selected from 2-isopropyl-2-isobutyl-1,3-dimethoxypropane, 2-isopropyl-2-isopentyl-1,3-dimethoxypropane, and 9,9-bis(methoxymethyl)fluorene.

10. A method for producing an olefin polymer comprising polymerizing an olefin in the presence of the catalyst for olefin polymerization according to claim 5 .

11. A method for producing an olefin polymer comprising polymerizing an olefin in the presence of the catalyst for olefin polymerization according to claim 6 .

12. A method for producing an olefin polymer comprising polymerizing an olefin in the presence of the catalyst for olefin polymerization according to claim 7 .

13. A method for producing an olefin polymer comprising polymerizing an olefin in the presence of the catalyst for olefin polymerization according to claim 8 .

14. A method for producing an olefin polymer comprising polymerizing an olefin in the presence of the catalyst for olefin polymerization according to claim 9 .

Assignees

• Toho Titanium Co Ltd

Inventors

• Uozumi Toshiya
• Kono Hiroyuki
• Marui Shinta
• UZAWA Chika

Classifications

• C08F4/654 Primary

  with magnesium or compounds thereof · CPC title

• C08F4/6494

  containing oxygen · CPC title

• C08F4/6465

  containing silicium · CPC title

• C07C69/618

  having unsaturation outside the six-membered aromatic ring · CPC title

• C08F110/06 Primary

  Propene · CPC title