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US 11,359,035 B2Granted
Multi- or dual-headed compositions useful for chain shuttling and process to prepare the same
AssigneeDow Global Technologies LLC
InventorsLixin Sun, Zhe Zhou, Jaclyn Murphy, Edmund M. Carnahan
Life of this patent
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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.
Claims6
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 C1-20 alkyl group, and
- wherein J1, J2, and J3 may be the same or different, or mixtures thereof;
- and
- ZZ is a linear or branched C4-100 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.
11 more elements
Dependencies are inferred from the claim text.