TETRAARYL ETHOXY SIDE-CHAIN MONO-METALLOCENE COMPOUND, CATALYST SYSTEM COMPRISING SAME, AND POLYOLEFIN SYNTHESIS METHOD USING SAME

Title:

TETRAARYL ETHOXY SIDE-CHAIN MONO-METALLOCENE COMPOUND, CATALYST SYSTEM COMPRISING SAME, AND POLYOLEFIN SYNTHESIS METHOD USING SAME

Document Type and Number:

WIPO Patent Application WO/2023/123884

Kind Code:

A1

Abstract:

Disclosed in the present invention are a tetraaryl ethoxy side-chain mono-metallocene compound, a catalyst system containing same, and a polyolefin synthesis method using same. The structural formula of the tetraaryl ethoxy side-chain mono-metallocene compound is shown in FIG. 1, wherein M is selected from Ti, Zr or Hf; Cp' is selected from cyclopentadienyl, a substituted cyclopentadienyl, indenyl, a substituted indenyl, fluorenyl and a substituted fluorenyl; Ar is selected from phenyl and a substituted phenyl; and X is selected from halogen, alkyl, alkoxy, dialkylamino, phenyl and benzyl. An olefin polymerization reaction is catalyzed with a catalyst system containing the tetraaryl ethoxy side-chain mono-metallocene compound, and since the activity center of the tetraaryl ethoxy side-chain single metallocene is single, an α-olefin isomerization side reaction is highly inhibited, such that the α-olefin content of a polyisobutylene product can be significantly improved, and the molecular weight distribution of the product is reduced.

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Inventors:

MA KECUN (CN)
WANG YULONG (CN)
GAO MENG (CN)
YANG CHUNJI (CN)
JI YONGGANG (CN)
XU XIANMING (CN)
ZHAO GUANGHUI (CN)
ZENG QUNYING (CN)
LIANG LIWEI (CN)
ZHAO TIEKAI (CN)

Application Number:

PCT/CN2022/098637

Publication Date:

July 06, 2023

Filing Date:

June 14, 2022

Export Citation:

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Assignee:

PETROCHINA CO LTD (CN)

International Classes:

C07F7/28; B01J31/22; C07F17/00; C08F4/42; C08F110/02; C08F110/04

Foreign References:

CN1593763A	2005-03-16
CN104877049A	2015-09-02
US5977392A	1999-11-02
CN1431232A	2003-07-23
CN106632768A	2017-05-10

Other References:

ZHANG, HONGJIANG ET AL.: "Study on Titanium-oxygen Heterocycle Metallocene Catalyst for Ethylene-propylene Copolymerization", CHINA ELASTOMERICS, vol. 15, no. 5, 25 October 2005 (2005-10-25), XP009547346

Attorney, Agent or Firm:

BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)

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