Novel triarylphosphine or triarylarsine compound, alpha-olefin polymerization catalyst using the compound, ternary copolymer, and production process of alpha-olefin -((meth)acrylic acid)-based copolymer

Patent metadata

Field	Value
Publication number	US-2016264699-A1
Application number	US-201615161663-A
Country	US
Kind code	A1
Filing date	May 23, 2016
Priority date	Nov 20, 2008
Publication date	Sep 15, 2016
Grant date	—

Abstract

To provide an industrially useful α-olefin•((meth)acrylic acid)-based olefin copolymer having both a high molecular weight and a high comonomer content, a catalyst component capable of realizing a production of two different kinds of α-olefin•((meth)acrylic acid)-based olefin copolymers, and a production process using the catalyst. An α-olefin•((meth)acrylic acid)-based olefin copolymer is produced by using a metal complex complexed with a ligand represented by the following formula (Y is phosphorus or arsenic) for a catalyst composition.

First claim

1 - 16 . (canceled)

17 . A ternary copolymer of an ethylene, an α-olefin having a carbon number of 3 to 10 and a (meth)acrylic acid or ester represented by CH 2 − C(R 18 )CO 2 (R 19 ) wherein R 18 is a hydrogen atom or an alkyl group having a carbon number of 1 to 10, and R 19 is a hydrogen atom or an alkyl group having a carbon number of 1 to 30, which may contain a hydroxyl group, an alkoxy group or an epoxy group on an arbitrary position, the ternary copolymer satisfying the following requirements (a) and (b):
(a) the ratio Mw/Mn of the weight average molecular weight (Mw) to the number average molecular weight (Mn) satisfies the following relationship:
1.5≦ Mw/Mn≦ 3

(b) the melting point Tin (° C.), the α-olefin content [C] (mol %) and the polar group-containing vinyl monomer content [X] (mol %) satisfy the following relationship:
60≦ Tm≦ 135−6.4×([ C]+[X ])

wherein Tm is a peak temperature of a melting curve obtained by the measurement using a differential scanning calorimeter (DSC) and when a plurality of melting peaks are detected, Tm is the temperature of the maximum peak out of detected peaks.

18 . The ternary copolymer as claimed in claim 17 , wherein a phase angle δ(G*=0.1 MPa at G*−0.1 MPa) as measured by a rotary rheometer is from 40 to 75°.

19 . The ternary copolymer as claimed in claim 17 , wherein a difference T90-T10 (° C.) between a temperature T10 (° C.) allowing 10 wt % of the total to elute in an integrated elution curve as determined by a continuous temperature rising elution fractionation method (TREF) and a temperature T90 (° C.) allowing 90 wt % of the total to elute, and a weight average elution temperature Tw (° C.) satisfy the following relationship:
28−0.3× Tw≦T 90− T 10≦41−0.3× Tw.

20 . The ternary copolymer as claimed in claim 17 , wherein the carbon number of the α-olefin is any of 4 to 8.

Assignees

• Japan Polyethylene Corp
• Japan Polypropylene Corp

Inventors

• Kobayashi Minoru
• Uchino Hideshi
• Yamamoto Kazuhiro
• Egashira Toshiaki
• Shimizu Hiroyuki
• Morioka Tetsuya

Classifications

• C07F9/74

  Aromatic compounds · CPC title

• C07F9/5022 Primary

  Aromatic phosphines (P-C aromatic linkage) · CPC title

• C07F15/04

  Nickel compounds · CPC title

• C07F9/65515

  the oxygen atom being part of a five-membered ring · CPC title

• C08F10/00

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