Production method for olefin-based polymer, olefin polymerization catalyst, and olefin-based polymer

Patent metadata

Field	Value
Publication number	US-10246531-B2
Application number	US-201515302388-A
Country	US
Kind code	B2
Filing date	Apr 10, 2015
Priority date	Apr 11, 2014
Publication date	Apr 2, 2019
Grant date	Apr 2, 2019

Abstract

Provided is a production method for an olefin-based polymer, including polymerizing an olefin raw material using (A) a transition metal compound, (B) a boron compound capable of forming an ion pair with the component (A), (C) an organoaluminum compound, and (D) water, a molar ratio [(D)/(A)] of a molar quantity of the component (D) to a molar quantity of a transition metal in the component (A) being 5 or more and 10,000 or less.

First claim

The invention claimed is:

1. A production method for polypropylene, the production method comprising polymerizing propylene in the presence of the following components (A) to (D):
(A) a transition metal compound;
(B) a boron compound capable of forming an ion pair with the component (A);
(C) an organoaluminum compound; and
(D) water,
wherein:
a molar ratio [(D)/(A)] of a molar quantity of the component (D) to a molar quantity of a transition metal in the component (A) is 5 or more and 10,000 or less;
a molar ratio [(D)/(C)] of the molar quantity of the component (D) to a molar quantity of an aluminum atom in the component C) is more than 0 and 0.9 or less;
the transition metal compound (A) is a double crosslinked metallocene complex represented by a formula (I):

M represents a metal element of Groups 3 to 10 of the periodic table or the lanthanoid series;
E 1 and E 2 each represent a ligand selected from a substituted cyclopentadienyl group, an indenyl group, a substituted indenyl group, a heterocyclopentadienyl group, a substituted heterocyclopentadienyl group, an amide group, a phosphide group, a hydrocarbon group, and a silicon-containing group, form a crosslinked structure via A 1 and A 2 , and may be identical to or different from each other;
X represents a σ-bonding ligand, and when a plurality of X's are present, the plurality of X's may be identical to or different from each other, and X may be crosslinked with any other X, E 1 , E 2 , or Y;
Y represents a Lewis base, and when a plurality of Y's are present, the plurality of Y's may be identical to or different from each other, and Y may be crosslinked with any other Y, E 1 , E 2 , or X;
A 1 and A 2 each represent a divalent crosslinking group for bonding two ligands, and each represent a hydrocarbon group having 1 to 20 carbon atoms, a halogen-containing hydrocarbon group having 1 to 20 carbon atoms, a silicon-containing group, a germanium-containing group, a tin-containing group, —O—, —CO—, —S—, —SO 2 —, —Se—, —NR 1 —, —PR 1 —, —P(O)R 1 —, —BR 1 —, or —AlR 1 —, wherein R 1 represents a hydrogen atom, a halogen atom, a hydrocarbon group having 1 to 20 carbon atoms, or a halogen-containing hydrocarbon group having 1 to 20 carbon atoms, and may be identical to or different from each other;
q represents an integer of from 1 to 5 representing [(valence of M)-2]; and
r represents an integer of from 0 to 3.

2. The production method according to claim 1 , wherein the propylene or a polymerization solvent comprises (N) a nonpolymerizable unsaturated hydrocarbon.

3. The production method according to claim 2 , wherein the nonpolymerizable unsaturated hydrocarbon (N) comprises a disubstituted olefin, a trisubstituted olefin, or a tetrasubstituted olefin represented by the following general formula (i), or an alkyne represented by the following general formula (ii):

wherein:
in the general formula (i),
R a to R d each independently represent hydrogen or a hydrocarbon group having 1 or more carbon atoms, provided that at least two or more selected from R a to R d each represent the hydrocarbon group having 1 or more carbon atoms; and
R e and R f each independently represent hydrogen or a hydrocarbon group having 1 or more carbon atoms.

4. The production method according to claim 2 , wherein a molar ratio [(N)/(A)] of a molar quantity of the component (N) to a molar quantity of a transition metal in the component (A) is 500 or more.

5. The production method according to claim 1 , wherein:
the transition metal compound (A) is a double crosslinked metallocene complex represented by a formula (II):

M represents a metal element of Groups 3 to 10 of the periodic table or the lanthanoid series;
X 1 represents a σ-bonding ligand, and when a plurality of X 1 's are present, the plurality of X 1 's may be identical to or different from each other, and X 1 may be crosslinked with any other X 1 or Y 1 ;
Y 1 represents a Lewis base, and when a plurality of Y 1 's are present, the plurality of Y 1 's may be identical to or different from each other, and Y 1 may be crosslinked with any other Y 1 or X 1 ;
A 1 and A 2 each represent a divalent crosslinking group for bonding two ligands, and each represent a hydrocarbon group having 1 to 20 carbon atoms, a halogen-containing hydrocarbon group having 1 to 20 carbon atoms, a silicon-containing group, a germanium-containing group, a tin-containing group, —O—, —CO—, —S—, —SO 2 —, —Se—, —NR 1 —, —PR 1 —, —P(O)R 1 —, —BR 1 —, or —AlR 1 —, wherein R 1 represents a hydrogen atom, a halogen atom, a hydrocarbon group having 1 to 20 carbon atoms, or a halogen-containing hydrocarbon group having 1 to 20 carbon atoms, and may be identical to or different from each other;
R 4 to R 9 each represent a hydrogen atom, a halogen atom, a hydrocarbon group having 1 to 20 carbon atoms, a halogen-containing hydrocarbon group having 1 to 20 carbon atoms, a silicon-containing group, or a hetero atom-containing group, and it is necessary that at least one of R 4 to R 9 not represent a hydrogen atom:
q represents an integer of from 1 to 5 representing [(valence of M)-2]; and
r represents an integer of from 0 to 3.

Assignees

• Idemitsu Kosan Co

Inventors

• Nishida Masayuki
• Samejima Kanako

Classifications

• C08F2/38

  Polymerisation using regulators, e.g. chain terminating agents {, e.g. telomerisation} · CPC title

• C08F10/00

  Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond · CPC title

• C08F2500/17

  Viscosity · CPC title

• C08F4/54

  together with other compounds thereof · CPC title

• C08F4/6592

  containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring · CPC title