US 2022/0372177 A1Published application

Catalyst for olefin polymerization and polymerization method using same

AssigneesChina Petroleum & Chemical Corporation, Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation

InventorsWenbo SONG, Shuliang HAN, Zhao JIN, Lusheng WANG, Haokun LI, Yuanyuan FANG

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Abstract

Disclosed is a catalyst for olefin polymerization, comprising a main catalyst and a cocatalyst; the main catalyst is a bisphenol metal complex represented by formula I, and the cocatalyst comprises an organoaluminum compound; in formula I, R1, R1′, R2, R2′ are the same or different, and are each independently selected from hydrogen and a substituted or unsubstituted C1-C20 hydrocarbyl; R3-R7, R3′-R7′ are the same or different, and are each independently selected from hydrogen and a substituted or unsubstituted C1-C20 hydrocarbyl; R8 and R9 are the same or different, and are each independently selected from hydrogen or a substituted or unsubstituted C1-C20 hydrocarbyl; M and M′ are the same or different, and are selected from Group IV metals; and X is halogen;

Claims21

Dependent claims

A catalyst for olefin polymerization, comprising a main catalyst and a cocatalyst, wherein the main catalyst comprises a bisphenol metal complex represented by Formula I:

wherein R1 and R1′ are each independently selected from the group consisting of hydrogen and substituted or unsubstituted C1-C20) hydrocarbyl;
R3-R7, R3′-R7′ are each independently selected from the group consisting of hydrogen and substituted or unsubstituted C1-C20 hydrocarbyl, and any two adjacent groups of R3-R7 are optionally joined to form a ring, and any two adjacent groups of R3′-R7′ are optionally joined to form a ring;
M and M′ are each independently a Group 4 metal;
each X is independently selected from the group consisting of hydrocarbyl having 1 to 20 carbon atoms, hydride, amido, alkoxide, alkyl sulfide, alkyl phophide, halide, diene, amine, phosphine, ether, and combinations thereof;
m and n are independently an integer of from 1 to 4;
and
L is a divalent linking group, and
wherein the cocatalyst includes an organoaluminum compound.

5 more elements

Dependencies are inferred from the claim text.