Polymerization processes for olefins
AssigneeE. I. Du Pont de Nemours and Company
InventorsStephan James McLain, Jerald Feldman
Life of this patent
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Abstract
Certain olefins such as ethylene, .alpha.-olefins and cyclopentene can be polymerized by using catalyst system containing a nickel or palladium .alpha.-diimine complex, a metal containing hydrocarbylation compound, and a selected Lewis acid, or a catalyst system containing certain nickel II! or palladium II! compounds, an .alpha.-diimine, a metal containing hydrocarbylation compound, and optionally a selected Lewis acid. The process advantageously produces polyolefins useful for molding resins, films, elastomers and other uses.
Claims19
A process for the polymerization of olefins, comprising, contacting, at a temperature of about -100.degree. C. to about +200.degree. C., a Ni (II) or Pd (II) complex of (I), ##STR22## a metal containing hydrocarbylation compound, and a compound (II) selected from the group consisting of B(C.sub.6 F.sub.5).sub.3, AlCl.sub.3, AlBr.sub.3, Al(OTf).sub.3, and (R.sup.13 R.sup.14 R.sup.15 C)Y, with an olefin, wherein:
- said olefin is selected from the group consisting of ethylene, an olefin of the formula R.sup.17 CH.dbd.CH.sub.2 or R.sup.17 CH.dbd.CHR.sup.17, cyclobutene, cyclopentene, and a norbornene;
- R.sup.2 and R.sup.5 are each independently aryl or substituted aryl, provided in both R.sup.2 and R.sup.5 at least one of the carbon atoms bound to a carbon atom bound directly to an imino nitrogen atom does not have any hydrogen atoms bound to it;
- R.sup.3 and R.sup.4 are each independently hydrogen, hydrocarbyl, substituted hydrocarbyl, or R.sup.3 and R.sup.4 taken together are hydrocarbylene or substituted hydrocarbylene to form a carbocyclic ring;
- R.sup.13, R.sup.14 and R.sup.15 are each independently aryl or substituted aryl;
- each R.sup.17 is independently hydrocarbyl or substituted hydrocarbyl provided that any olefinic bond in said olefin is separated from any other olefinic bond or aromatic ring by a quaternary carbon atom or at east two saturated carbon atoms;
- and
- Y is a relatively noncoordinating anion.
A process for the polymerization of olefins, comprising, contacting a Ni (II) or Pd (II) salt with (I), ##STR23## a metal containing hydrocarbylation compound, and optionally a compound (II) selected from the group consisting of B(C.sub.6 F.sub.5).sub.3, AlCl.sub.3, AlBr.sub.3, Al(OTf).sub.3, and (R.sup.13 R.sup.14 R.sup.15 C)Y, with an olefin, wherein:
- said Ni (II) or Pd (II) salt is selected from the group consisting of Ni(O.sub.2 CR.sup.7).sub.2, NiR.sup.8 COCH.dbd.C(O)R.sup.8 !.sub.2, NiX.sub.2, L.sup.1 L.sup.2 NiX.sub.2, Ni(OR.sup.18).sub.2, Pd(O.sub.2 CR.sup.9).sub.2, PdR.sup.10 COCH.dbd.C(O)R.sup.10 !.sub.2, PdX.sub.2, L.sup.1 L.sup.2 PdX.sub.2, and Pd(OR.sup.19).sub.2 ;
- said olefin is selected from the group consisting of ethylene, an olefin of the formula R.sup.17 CH.dbd.CH.sub.2 or R.sup.17 CH.dbd.CHR.sup.17, cyclobutene, cyclopentene, and a norbornene;
- R.sup.2 and R.sup.5 are each independently aryl or substituted aryl, provided in both R.sup.2 and R.sup.5 at least one of the carbon atoms bound to a carbon atom bound directly to an imino nitrogen atom does not have any hydrogen atoms bound to it;
- R.sup.3 and R.sup.4 are each independently hydrogen, hydrocarbyl, substituted hydrocarbyl, or R.sup.3 and R.sup.4 taken together are hydrocarbylene or substituted hydrocarbylene to form a carbocyclic ring;
- R.sup.13, R.sup.14 and R.sup.15 are each independently aryl or substituted aryl;
- each R.sup.17 is independently hydrocarbyl or substituted hydrocarbyl provided that any olefinic bond in said olefin is separated from any other olefinic bond or aromatic ring by a quaternary carbon atom or at least two saturated carbon atoms;
- each R.sup.18 and R.sup.19 is independently hydrocarbyl, substituted hydrocarbyl, or R.sup.21 SO.sub.3.sup.- ;
- each R.sup.7, R.sup.8, R.sup.9 and R.sup.10 is independently hydrocarbyl or substituted hydrocarbyl containing from 1 to 20 carbon atoms;
- each X is independently halogen or R.sup.21 SO.sub.3.sup.- ;
- each R.sup.21 is independently aryl, substituted aryl or perfluoroalkyl;
- L.sup.1 and L.sup.2 are independently ligands capable of being displaced by (I), or taken together are a bidentate ligand that is capable of being displaced by (I);
- and
- Y is a relatively noncoordinating anion;
- and provided that when said hydrocarbylation compound is other than an alkylaluminum compound containing one or more halogen atoms bound to an aluminum atom or (R.sup.20 AlO).sub.q wherein R.sup.20 is alkyl and q is a positive integer, (II) must be present.
Dependencies are inferred from the claim text.