Method for preparing olefin-polar monomer copolymer

US12428505B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12428505-B2
Application numberUS-202017755542-A
CountryUS
Kind codeB2
Filing dateOct 30, 2020
Priority dateOct 31, 2019
Publication dateSep 30, 2025
Grant dateSep 30, 2025

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A method for preparing an olefin-olefinic alcohol copolymer and an olefin-olefinic alcohol copolymer prepared by the method are provided. The catalyst used in the method for preparing the olefin-olefinic alcohol copolymer has a diimine metal complex as shown in Formula I.

First claim

Opening claim text (preview).

We claim: 1. A method for preparing an olefin-polar monomer copolymer, comprising copolymerizing an olefin and a polar monomer in the presence of a catalyst and optionally a chain transfer agent to produce the olefin-polar monomer copolymer, wherein, the catalyst comprises a main catalyst and optionally a cocatalyst, the main catalyst comprises a diimine-metal complex represented by Formula I: wherein, R 1 and R 2 are each independently a C1-C30 hydrocarbyl with or without a substituent Q; R 3 and R 4 are each independently selected from the group consisting of hydrogen, halogen, hydroxy, C1-C20 hydrocarbyl with or without a substituent Q, and adjacent R 3 and R 4 groups are optionally joined to form a ring or ring system; each R 11 is independently a C1-C20 hydrocarbyl with or without a substituent Q; each Y is independently a Group VIA non-metal atom; each M is independently a Group VIII metal; each X is independently selected from the group consisting of halogen, C1-C10 hydrocarbyl with or without a substituent Q and C1-C10 hydrocarbyloxy with or without a substituent Q, or the main catalyst comprises an amino-imine metal complex represented by Formula I′: wherein, R 1 and R 2 are each independently a C1-C30 hydrocarbyl with or without a substituent Q; each R 3 is independently selected from the group consisting of hydrogen and C1-C20 hydrocarbyl with or without a substituent Q; R 5 to R 8 are each independently selected from the group consisting of hydrogen, halogen, hydroxy, and C1-C20 hydrocarbyl with or without a substituent Q, and R 5 to R 8 groups are optionally joined to form a ring or ring system; each R 12 is independently a C1-C20 hydrocarbyl with or without a substituent Q; each Y is independently a Group VIA non-metal atom; each M is independently a Group VIII metal; each X is independently selected from the group consisting of halogen, C1-C10 hydrocarbyl with or without a substituent Q and C1-C10 hydrocarbyloxy with or without a substituent Q, wherein each substituent Q in the diimine-metal complex or in the amino-imine metal complex is independently selected from the group consisting of halogen, hydroxy, C1-C10 alkyl, halogenated C1-C10 alkyl, C1-C10 alkoxy and halogenated C1-C10 alkoxy, wherein the olefin is an olefin having 2 to 16 carbon atoms, and wherein the polar monomer is one or more of olefinic alcohols represented by Formula G: wherein, L 1 -L 3 are each independently selected from the group consisting of H and C1-C30 alkyl with or without a substituent, L 4 is a C1-C30 alkylene optionally having a pendant group, or alternatively, the polar monomer is an unsaturated carboxylic acid represented by Formula G′: wherein, L 1 -L 3 are each independently selected from the group consisting of H and C1-C30 alkyl with or without a substituent, L 4 is a C1-C30 alkylene having a pendant group. 2. The method as claimed in claim 1 , wherein: the main catalyst comprises a diimine metal complex represented by Formula Ib: wherein, R 1 and R 2 are each independently a C1-C30 hydrocarbyl with or without the substituent Q; R 5 -R 8 are each independently selected from the group consisting of hydrogen, halogen, hydroxy, C1-C20 hydrocarbyl with or without the substituent Q, and R 5 -R 8 are optionally joined to form a ring or ring system; each R 12 is independently a C1-C20 hydrocarbyl with or without the substituent Q; each Y is independently a Group VIA nonmetal atom; each M is independently a Group VIII metal; and each X is independently selected from the group consisting of halogen, C1-C10 hydrocarbyl with or without the substituent Q and C1-C10 hydrocarbyloxy with or without the substituent Q. 3. The method as claimed in claim 2 , having at least one feature selected from: R 1 and R 2 are independently selected from the group consisting of C1-C20 alkyl with or without the substituent Q and C6-C20 aryl with or without the substituent Q; each M is independently selected from the group consisting of nickel and palladium; each Y is independently selected from the group consisting of O and S; each X is independently selected from the group consisting of halogen, C1-C10 alkyl with or without the substituent Q, and C1-C10 alkoxy with or without the substituent Q; each R 12 is independently a C1-C20 alkyl with or without the substituent Q; and the substituent Q is selected from the group consisting of halogen, hydroxy, C1-C6 alkyl, halogenated C1-C6 alkyl, C1-C6 alkoxy and halogenated C1-C6 alkoxy. 4. The method as claimed in claim 2 , wherein the diimine metal complex is represented by Formula IIIb: wherein, R 1 -R 11 are each independently selected from the group consisting of hydrogen, halogen, hydroxy, C1-C20 alkyl with or without the substituent Q, C2-C20 alkenyl with or without the substituent Q, C2-C20 alkynyl with or without the substituent Q, C1-C20 alkoxy with or without the substituent Q, C2-C20 alkenoxy with or without the substituent Q, C2-C20 alkynoxy with or without the substituent Q, C6-C20 aryl with or without the substituent Q, C6-C20 aryloxy with or without the substituent Q, C7-C20 aralkyl with or without the substituent Q, C7-C20 aralkoxy with or without the substituent Q, C7-C20 alkaryl with or without the substituent Q and C7-C20 alkaryloxy with or without the substituent Q, and M, X, Y and R 12 are as defined in claim 2 . 5. The method as claimed in claim 2 , wherein in the diimine metal complex, R 1 -R 11 are each independently selected from the group consisting of hydrogen, halogen, hydroxy, C1-C10 alkyl with or without the substituent Q, C2-C10 alkenyl with or without the substituent Q, C2-C10 alkynyl with or without the substituent Q, C1-C10 alkoxy with or without the substituent Q, C2-C10 alkenoxy with or without the substituent Q, C2-C10 alkynoxy with or without the substituent Q, C6-C15 aryl with or without the substituent Q, C6-C15 aryloxy with or without the substituent Q, C7-C15 aralkyl with or without the substituent Q, C7-C15 aralkoxy with or without the substituent Q, C7-C15 alkaryl with or without the substituent Q and C7-C15 alkaryloxy with or without the substituent Q. 6. The method as claimed in claim 5 , wherein the diimine metal complex is selected from the group consisting of: 1) The diimine metal complex represented by Formula IIIb, wherein R 1 =R 3 =methyl, R 2 =R 4 -R 7 =R 10 =H, R 8 =R 9 =R 11 =methyl, R 12 =ethyl, M=Ni, Y=O, X=Br; 2) The diimine metal complex represented by Formula IIIb, wherein R 1 =R 3 =ethyl, R 2 =R 4 -R 7 =R 10 =H, R 8 =R 9 =R 11 =methyl, R 12 =ethyl, M=Ni, Y=O, X=Br; 3) The diimine metal complex represented by Formula IIIb, wherein R 1 =R 3 =isopropyl, R 2 =R 4 -R 7 =R 10 =H, R 8 =R 9 =R 11 =methyl, R 12 =ethyl, M=Ni, Y=O, X=Br; 4) The diimine metal complex represented by Formula IIIb, wherein R 1 -R 3 =methyl, R 4 -R 7 =R 10 =H, R 8 =R 9 =R 11 =methyl, R 12 =ethyl, M=Ni, Y=O, X=Br; 5) The diimine metal complex represented by Formula IIIb, wherein R 1 =R 3 =methyl, R 2 =Br, R 4 R 7 =R 10 =H, R 8 =R 9 =R 11 =methyl, R 12 =ethyl, M=Ni, Y=O, X=Br; 6)

Assignees

Inventors

Classifications

  • of the platinum group metals · CPC title

  • the ligands containing nitrogen · CPC title

  • selected from iron group metals or platinum group metals · CPC title

  • Acids; Metal salts or ammonium salts thereof · CPC title

  • Copolymers of ethene (C08L23/16 takes precedence) · CPC title

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US12428505B2 cover?
A method for preparing an olefin-olefinic alcohol copolymer and an olefin-olefinic alcohol copolymer prepared by the method are provided. The catalyst used in the method for preparing the olefin-olefinic alcohol copolymer has a diimine metal complex as shown in Formula I.
Who is the assignee on this patent?
China Petroleum & Chem Corp, Beijing Res Inst Chemical Ind China Petroleum & Chemical Corp
What technology area does this patent fall under?
Primary CPC classification C08F4/7098. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Sep 30 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).