Solid titanium catalyst component, olefin polymerization catalyst, olefin polymerization method, and propylene polymer

Patent metadata

Field	Value
Publication number	US-12534544-B2
Application number	US-202118022478-A
Country	US
Kind code	B2
Filing date	Aug 26, 2021
Priority date	Aug 26, 2020
Publication date	Jan 27, 2026
Grant date	Jan 27, 2026

Abstract

The solid titanium catalyst component (I) of the present invention contains titanium, magnesium, halogen, and a cyclic multiple-ester-group-containing compound (a) represented by the following formula (1).

First claim

The invention claimed is:

1 . A solid titanium catalyst component (I) comprising titanium, magnesium, halogen, and a cyclic multiple-ester-group-containing compound (a) represented by the following formula (1):

wherein n1 to n4 are each independently an integer of 0 to 2, m is 0 or 1, and x is an integer of 0 to 10, with a relationship of m+x≥1 being satisfied;
R 1 and R 2 are each independently a substituted or unsubstituted hydrocarbon group having 1 to 20 carbon atoms; R 3 to R 16 and R are each independently a hydrogen atom, a substituted or unsubstituted hydrocarbon group having 1 to 20 carbon atoms, or a halogen atom; a hydrogen atom, a carbon atom, or both, of R 1 to R 16 and R are optionally replaced by at least one atom selected from the group consisting of a nitrogen atom, an oxygen atom, a phosphorus atom, a halogen atom, and a silicon atom; and two or more selected from R 3 to R 16 and R are optionally bonded to one another to form a monocyclic or polycyclic ring, and adjacent substituents are optionally directly bonded to form a multiple bond;
C a , C b , and C c are carbon atoms, and in a carbon-carbon bond of a cyclic structure formed of C a , C b , and C c , R bonded to adjacent carbon are optionally directly bonded to one another to form a multiple bond; and
A is a single bond or a divalent linking group having a chain with a length of 1 to 3 atoms between two free radicals,
wherein any two or more of R 3 -R 10 may be absent on adjacent carbon atoms, and a bond between adjacent carbon atoms where two or more of R 3 -R 10 are absent may comprise a double carbon-carbon bond or a triple carbon-carbon bond; and
wherein R may be absent on any two or more of adjacent carbon atoms, and a bond between adjacent carbon atoms where R is absent may comprise a double carbon-carbon bond or a triple carbon-carbon bond.

2 . The solid titanium catalyst component (I) according to claim 1 , wherein in the formula (1), a moiety in which two or more selected from R 3 to R 16 and R are bonded to one another to form a monocyclic or polycyclic ring is a structure containing a carbon-carbon double bond.

3 . The solid titanium catalyst component (I) according to claim 1 , wherein in the formula (1), a moiety in which two or more selected from R 3 to R 16 and R are bonded to one another to form a monocyclic or polycyclic ring further contains a monocyclic or polycyclic structure.

4 . The solid titanium catalyst component (I) according to claim 1 , wherein A is a divalent group selected from the following general formula group (2):

wherein R 1′ to R 7′ each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group; and R 2′ to R 7′ are optionally bonded to one another to form a monocyclic or polycyclic ring, or adjacent substituents are optionally directly bonded to each other to form a multiple bond.

5 . The solid titanium catalyst component (I) according to claim 1 , wherein x is 2 to 6.

6 . The solid titanium catalyst component (I) according to claim 1 , wherein n1 and n2 are 1.

7 . The solid titanium catalyst component (I) according to claim 1 , wherein n3 and n4 are 0.

8 . The solid titanium catalyst component (I) according to claim 1 , wherein R 1 and R 2 are a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group.

9 . The solid titanium catalyst component (I) according to claim 1 , wherein R 3 to R 16 are each independently a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted cycloalkenyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted alkenyloxy group, a substituted or unsubstituted cycloalkyloxy group, a substituted or unsubstituted cycloalkenyloxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aryloxy group, a substituted or unsubstituted heteroaryl group, or a substituted or unsubstituted heteroaryloxy group.

10 . The solid titanium catalyst component (I) according to claim 1 , wherein R is each independently a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted cycloalkenyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted alkenyloxy group, a substituted or unsubstituted cycloalkyloxy group, a substituted or unsubstituted cycloalkenyloxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aryloxy group, a substituted or unsubstituted heteroaryl group, or a substituted or unsubstituted heteroaryloxy group.

11 . A catalyst for olefin polymerization, comprising: the solid titanium catalyst component (I) according to claim 1 ; and an organometallic compound catalyst component (II) comprising a metal element selected from Group 1, Group 2, and Group 13 of the periodic table.

12 . The catalyst for olefin polymerization according to claim 11 , further comprising an electron donor (III).

13 . An olefin polymerization method, comprising polymerizing an olefin in the presence of the catalyst for olefin polymerization according to claim 11 .

Assignees

• Mitsui Chemicals Inc

Inventors

• Kimura Takashi
• Isogai Makoto
• Nakayama Yasushi
• Michiue Kenji
• Jinnai Takashi
• Yamada Wataru
• Takano Shotaro
• Terao Hiroshi
• Yano Takaaki
• Totani Yoshiyuki
• Moorthi Sunil Krzysztof
• Nakano Takashi

Classifications

• C08F2410/04

  Dual catalyst, i.e. use of two different catalysts, where none of the catalysts is a metallocene · CPC title

• C08F10/06

  Propene · CPC title

• C08F4/16 Primary

  of silicon, germanium, tin, lead, titanium, zirconium or hafnium · CPC title

• C08F2500/34

  Melting point [Tm] · CPC title

• C08F2500/35

  Crystallinity, e.g. soluble or insoluble content as determined by the extraction of the polymer with a solvent · CPC title