Back to results
US 11,613,600 B2Granted
Capped dual-headed organoaluminum compositions
AssigneeDow Global Technologies LLC
InventorsLixin Sun, Endre Szuromi, Jerzy Klosin, Edmund M. Carnahan, Jasson T. Patton, Longyan Liao
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a capped dual-headed organoaluminum composition having the formula (I) and processes to prepare the same. In at least one aspect, the capped dual-headed organoaluminum compositions can be used in olefin polymerization.
Claims19
A composition of formula (I):
- wherein:
- n is a number from 1 to 100;
- Y is a linking group composed of a linear, branched, or cyclic C4 to C100 hydrocarbylene group that optionally includes at least one heteroatom and that is aliphatic or aromatic, wherein Y comprises two points of attachment to Al atoms and at least one of the two points of attachment is —CH2—;
- each R group is independently a substituted or unsubstituted aryl group or a substituted or unsubstituted cyclic alkyl group containing, optionally, at least one heteroatom;
- and
- two R groups attached to the same Al can be optionally covalently linked together.
3 more elements
A process for preparing a composition, the process comprising:
- (a) combining an aluminum compound, a linking agent, a capping agent, and an optional solvent at a temperature of from 50° C. to 200° C. for a time from 30 minutes to 200 hours, and
- (b) obtaining the composition, wherein:
- the aluminum compound has the formula Al(J)3, wherein each J group is independently hydrogen, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl or heteroaryl group, wherein at least one J group is a hydrogen or an acyclic alkyl group and, optionally, two J groups can be covalently linked together;
- the linking agent is a C4 to C100 hydrocarbon comprising either at least two vinyl groups or a vinyl group and a cyclic olefin group and, optionally, includes at least one heteroatom;
- and
- the capping agent is a substituted or unsubstituted cyclic olefin.
3 more elements
A composition comprising the reaction product of:
- an aluminum compound, a linking agent, a capping agent, and an optional solvent, wherein:
- the aluminum compound has the formula Al(J)3, wherein each J group is independently hydrogen, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl or heteroaryl group, wherein at least one J group is a hydrogen or an acyclic alkyl group, and optionally, two J groups can be covalently linked together;
- the linking agent is a C4 to C100 hydrocarbon comprising either at least two vinyl groups or a vinyl group and a cyclic olefin group and, optionally, includes at least one heteroatom;
- and
- the capping agent is a substituted or unsubstituted cyclic olefin.
2 more elements
Dependencies are inferred from the claim text.