Capped multi- or dual-headed compositions useful for chain shuttling and process to prepare the same
AssigneeDow Global Technologies LLC
InventorsLixin Sun, Zhe Zhou, Edmund M. Carnahan, Kim L. Walton
Life of this patent
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Abstract
The present disclosure relates to a capped, multi- or dual-headed chain composition comprising derivatives of a strained olefin. The present disclosure further relates to a process for synthesizing the capped, multi- or dual-headed composition by using an organometallic compound and a co-catalyst in the presence of a catalyst precursor and a strained olefin. The present disclosure further relates to use of the compositions, as well as the process to make the same, in olefin polymerization.
Claims20
A composition having 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;
- YY is a derivative of a linking group, wherein the linking group is a C4-100 hydrocarbon comprising at least two vinyl groups and optionally includes at least one heteroatom;
- and
- each J2 and J3 is a derivative of a strained olefin.
A process for preparing the composition having 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;
- YY is a derivative of a linking group, wherein the linking group is a C4-100 hydrocarbon comprising at least two vinyl groups and optionally includes at least one heteroatom;
- and
- each J2 and J3 is a derivative of a strained olefin, the process comprising:
- (a) combining a linking group, an organometallic compound, a co-catalyst, a solvent, a first catalyst precursor, and a strained olefin, and (b) obtaining a final solution comprising the composition having the formula (I), wherein the linking group is a C4-100 hydrocarbon comprising at least two vinyl groups and optionally includes at least one heteroatom.
Dependencies are inferred from the claim text.