PHOSPHINE-PHENOL LATE TRANSITION METAL COMPLEX, AND PREPARATION METHOD THEREFOR AND USE THEREOF

WIPO Patent Application WO/2024/078527

A1

The present invention relates to the technical field of olefin polymerization catalysts, and discloses a phosphine-phenol late transition metal complex, and a preparation method therefor and the use thereof. The structural formula of the phosphine-phenol late transition metal complex is as shown in formula (I), wherein R1 is selected from a substituted or unsubstituted C1-C20 hydrocarbyl; and R3 and R4 are each independently selected from halogen, a C1-C10 hydrocarbyl, -P(R5)3, -NR6R7 and -OR8R9, where R5 is a substituted or unsubstituted C1-C10 alkyl or aryl, R6, R7, R8 and R9 are each independently selected from a C1-C10 hydrocarbyl, and R6 and R7, as well as R8 and R9, are optionally interconnected to form a five-membered ring or a six-membered ring. Under similar polymerization conditions, by using the metal complex of the present invention as a catalyst for olefin polymerization, a higher homopolymerization/copolymerization activity can be achieved, and the obtained polymer has an obviously higher molecular weight and a narrower molecular weight distribution.

GAO RONG (CN)
GOU QINGQIANG (CN)
GUO ZIFANG (CN)
ZHANG RANDI (CN)
LAI JINGJING (CN)
WANG YING (CN)
AN JINGYAN (CN)
LE QIANG (CN)
SONG ZHIHUI (CN)
LI XINYANG (CN)

PCT/CN2023/123997

April 18, 2024

October 11, 2023

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CHINA PETROLEUM & CHEM CORP (CN)
SINOPEC BEIJING RES INSTITUTE OF CHEMICAL INDUSTRY CO LTD (CN)

C07F15/00; C07F15/04; C08F4/70

CN109320558A	2019-02-12
CN1270596A	2000-10-18
CN113651909A	2021-11-16

CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)

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