# US 9,751,961 B2 · Catalyst component for olefin polymerization, catalyst for olefin polymerization, and process for producing olefin (co)polymer using the same

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- Number: US 9,751,961 B2
- Document ID: US9751961B2
- Status: Granted
- Kind: B2
- Application number: 15/030,453
- Filed: 2014-10-24
- Published: 2016-09-22
- Granted: 2017-09-05
- Earliest claimed: 2013-10-25
- Assignees: Japan Polypropylene Corporation
- Applicants: Japan Polypropylene Corporation
- Inventors: Miyuki Murase; Takehiro Sagae; Masahide Murata
- Web page: https://patentgrep.com/patent/US9751961B2

## CPC

- C08F 10/06: Propene
- C08F 4/02: Carriers therefor
- C08F 4/025: {Metal oxides}
- C08F 4/65912: {in combination with an organoaluminium compound}
- C08F 4/65927: {two cyclopentadienyl rings being mutually bridged}
- C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS

## Abstract

Provided are a catalyst component for olefin polymerization which is highly active, an olefin polymerization catalyst, and a process for producing an olefin (co)polymer using the catalyst. The catalyst component for olefin polymerization is characterized by comprising an ion-exchanged phyllosilicate having the property 1 and preferably further having the property 2, etc.

## Claims

### Claim 1

A catalyst component for olefin polymerization, comprising an ion-exchanged phyllosilicate having the following property 1,
Property 1: in a pore distribution curve calculated by the BJH analysis method using an adsorption isotherm determined by a nitrogen adsorption method, the sum of the volumes of pores each having a diameter of 2-10 nm accounts for 60-100% of the total volume of mesopores.

### Claim 2 (depends on 1)

The catalyst component for olefin polymerization according to claim 1, wherein the ion-exchanged phyllosilicate further has the following property 2,
Property 2: in X-ray diffractometry (XRD), the ion-exchanged phyllosilicate gives a diffraction pattern which has a peak (m) at a 2θ of 19.6-20.0 degrees, and when the peak (m) has a peak intensity (M), there is no peak (i) other than the peak (m) in a 2θ of 15-25 degrees, or there is a peak (i) in the 2θ of 15-25 degrees and the peak (i) has a peak intensity (I) that satisfies the relationship with the peak intensity (M): 0<(I/M)≦1.6, with the proviso that there may be multiple peaks (i) and in a case where there are multiple (n) peaks (i), the sum of the ratios of the peak intensity (In) of the respective n peaks to the peak intensity (M), In/M, satisfies 0<[sum of (In/M)]≦1.6.

### Claim 3 (depends on 1)

The catalyst component for olefin polymerization according to claim 1, wherein the ion-exchanged phyllosilicate further has the following property 3,
Property 3: a specific surface area is 325 m2/g or larger.

### Claim 4 (depends on 1)

The catalyst component for olefin polymerization according to claim 1, wherein the ion-exchanged phyllosilicate is a silicate belonging to a smectite group.

### Claim 5 (depends on 1)

The catalyst component for olefin polymerization according to claim 1, wherein the ion-exchanged phyllosilicate is montmorillonite.

### Claim 6 (depends on 1)

The catalyst component for olefin polymerization according to claim 1, wherein the ion-exchanged phyllosilicate has undergone an acid treatment with an inorganic acid or an organic acid, and 10-65% by mole of main metal cations of the octahedral sheets constituting the ion-exchanged phyllosilicate have been eliminated by the acid treatment.

### Claim 7 (depends on 6)

The catalyst component for olefin polymerization according to claim 6, wherein the main metal cations of the octahedral sheets are aluminum.

### Claim 8 (depends on 1)

A catalyst for olefin polymerization, comprising the following component (a) and component (b), and optionally comprising the following component (c),
Component (a): a metallocene compound of a transition metal belonging to Group 4 of the periodic table,
Component (b): the catalyst component for olefin polymerization according to claim 1, and
Component (c): an organoaluminum compound.

### Claim 9 (depends on 8)

A process for producing an olefin (co)polymer, comprising polymerizing or copolymerizing one or more kinds of olefins using the catalyst for olefin polymerization according to claim 8.

### Claim 10 (depends on 2)

The catalyst component for olefin polymerization according to claim 2, wherein the ion-exchanged phyllosilicate further has the following property 3,
Property 3: a specific surface area is 325 m2/g or larger.