Multi- or dual-headed compositions useful for chain shuttling and process to prepare the same

Patent metadata

Field	Value
Publication number	US-11359035-B2
Application number	US-201716338267-A
Country	US
Kind code	B2
Filing date	Sep 29, 2017
Priority date	Sep 30, 2016
Publication date	Jun 14, 2022
Grant date	Jun 14, 2022

Abstract

The present disclosure relates to a process for synthesizing a multi- or dual-headed composition by using an alpha,omega-diene and an organometallic compound in the presence of a catalyst precursor. The present disclosure further relates to use of the compositions, as well as the process to make the same, in olefin polymerization.

First claim

What is claimed is:

1. A process for preparing a composition comprising: (a) combining a linking group, an organometallic compound, a co-catalyst, a solvent, and a first catalyst precursor, and (b) obtaining a final solution comprising the composition,
wherein the solvent is an aromatic solvent, and
wherein the composition has the formula (I):

wherein:
each MA independently is Al, B, Ga, Zn, or Mg;
when MA is Al, B, or Ga, then m is 1;
when MA is Zn or Mg, then m is 0;
n is a number from 1 to 100;
each J1, J2, and J3 is hydrogen or a C 1-20 alkyl group, and
wherein J1, J2, and J3 may be the same or different, or mixtures thereof; and
ZZ is a linear or branched C 4-100 hydrocarbyl group that optionally includes at least one heteroatom, and wherein ZZ may be aliphatic or aromatic,
wherein the composition comprises a single derivative of the linking group, and
wherein the linking group is an alpha-omega diene.

2. The process of claim 1 , wherein the organometallic compound comprises a trivalent metal, a divalent metal, or a mixture of a trivalent metal and a divalent metal.

3. The process of claim 1 , wherein the solvent is toluene.

4. A polymerization process for preparing a polymer composition, the process comprising:
contacting at least one olefin monomer with a catalyst composition; wherein
the catalyst composition comprises the reaction product of at least one catalyst precursor, at least one co-catalyst, and the composition having the formula (I) prepared by the process of claim 1 .

5. A polymerization process for preparing a polymer composition, the process comprising:
contacting at least one olefin monomer with a catalyst composition;
wherein the catalyst composition comprises the reaction product of a second catalyst precursor, a co-catalyst, and the composition having the formula (I) prepared by the process of claim 1 , and
wherein the second catalyst precursor is the same compound as the first catalyst precursor.

6. A polymer composition obtained by the process of claim 3 .

Assignees

• Dow Global Technologies Llc

Inventors

• Sun Lixin
• Zhou Zhe
• Murphy Jaclyn
• Carnahan Edmund M

Classifications

• C08F4/50

  selected from alkaline earth metals, zinc, cadmium, mercury, copper or silver · CPC title

• C08F4/6426

  containing aluminium · CPC title

• C08F4/64

  Titanium, zirconium, hafnium or compounds thereof · CPC title

• C08F4/65908

  in combination with an ionising compound other than alumoxane, e.g. (C6F5)4B-X+ · CPC title

• C08F4/64144 Primary

  NN(R)C · CPC title