Air and water tolerant catalyst
AssigneesCalifornia Institute of Technology, BP Chemicals Limited
InventorsPaul Oblad, Matthew S. Winston, Jay A. Labinger, John E. Bercaw, Sander Gaemers
Life of this patent
Estimating the term…
Abstract
A catalyst and/or precatalyst for olefin oligomerization comprising one or more coordination complexes having one or more central palladium metal atoms. Each palladium atom is bonded to four ligand donor atoms. Two of the donor atoms are group 16 elements and two of the donor atoms are group 15 elements. Also provided are neutral or cationic coordination complex dimers, so that the two palladium atoms are both bonded to one or two donor atoms from group 16, and each palladium atom is bonded to two donor atoms from group 15. In some instances, each of the two group 16 donor atoms are oxygen and each of the four group 15 donor atoms are nitrogen.
Claims19
A system, comprising:
- a catalyst resulting from one or more coordination complex dimers dissociating, each of the one or more coordination complex dimers, having two palladium atoms serving as central atoms, wherein
- (i) each of the palladium atoms are bonded to four ligand donor atoms;
- (ii) two of the ligand donor atoms are a group 16 element,
- (a) the palladium atoms both being bonded to a first one of the group 16 elements, and
- (b) the palladium atoms both being bonded to a second one of the group 16 element;
- (iii) four of the donor atoms each being a group 15 element,
- (a) two of the group 15 elements being bonded to a first one of the palladium atoms, and
- (b) another two of the group 15 elements being bonded to a second one of the palladium atoms;
- and
- (iv) monomers taking part in an oligomerization and/or polymerization reaction catalyzed by the catalyst.
A system, comprising:
- one or more coordination complex dimers dissolved in a mixture, the dimers having two palladium atoms serving as central atoms, wherein
- (i) each of the palladium atoms are bonded to four ligand donor atoms;
- (ii) two of the ligand donor atoms are a group 16 element,
- (a) the palladium atoms both being bonded to a first one of the group 16 elements, and
- (b) the palladium atoms both being bonded to a second one of the group 16 element;
- (iii) four of the donor atoms each being a group 15 element,
- (a) two of the group 15 elements being bonded to a first one of the palladium atoms, and
- (b) another two of the group 15 elements being bonded to a second one of the palladium atoms;
- and
- (iv) monomers included in the mixture, the monomers taking part in an oligomerization and/or polymerization reaction being catalyzed as a result of the one or more coordination complex dimers being dissolved in the mixture.
A method of olefin oligomerization and/or polymerization, comprising:
- generating a system that includes monomers and one or more coordination complex dimers, the dimers having two palladium atoms serving as central atoms, wherein
- (i) each of the palladium atoms are bonded to four ligand donor atoms;
- (ii) two of the ligand donor atoms are a group 16 element,
- (a) the palladium atoms both being bonded to a first one of the group 16 elements, and
- (b) the palladium atoms both being bonded to a second one of the group 16 element;
- (iii) four of the donor atoms each being a group 15 element,
- (a) two of the group 15 elements being bonded to a first one of the palladium atoms, and
- (b) another two of the group 15 elements being bonded to a second one of the palladium atoms;
- and
- (iv) oligomerizing and/or polymerizing the monomers such that the oligomerization and/or polymerization of the monomers is catalyzed as a result of the one or more coordination complex dimers being included in the system.
Dependencies are inferred from the claim text.