This invention relates to a non-phthalate catalyst system for olefin polymerization. The non-phthalate catalyst system comprises (a) a solid Ziegler-Natta catalyst composition comprising a transition metal, a Group 2 metal, and one or more halogens; and one or more internal electron donor compounds; and (b) one or more external electron donor compounds.

The present invention relates to a supported hybrid catalyst system for ethylene slurry polymerization and a method for preparing ethylene polymer therewith. The supported hybrid catalyst system according to the present invention may exhibit high activity during ethylene slurry polymerization, and enables preparation of an ethylene polymer having a narrow molecular weight distribution but excellent processability.

This invention relates to a non-phthalate catalyst system for olefin polymerization. The non-phthalate catalyst system comprises (a) a solid Ziegler-Natta catalyst composition comprising a transition metal, a Group 2 metal, and one or more halogens; and one or more internal electron donor compounds; and (b) one or more external electron donor compounds.

This invention relates to a non-phthalate catalyst system for olefin polymerization. The non-phthalate catalyst system comprises (a) a solid Ziegler-Natta catalyst composition comprising a transition metal, a Group 2 metal, and one or more halogens; and one or more internal electron donor compounds; and (b) one or more external electron donor compounds.

Metal catalyst compounds are disclosed. The catalyst compound are represented by the formula (I-II and VII): wherein M is a Group 8 metal; X is an anionic ligand; L is a neutral two electron donor ligand; K 2 (A-E) is a ditopic or multitopic ligand. Also disclosed is an easy applicable catalyst synthesis and the application in different olefin metathesis processes, e.g. Reaction Injection Molding (RIM), rotational molding, vacuum infusion, vacuum forming, process for conversion of fatty acids and fatty acid esters or mixtures thereof, in -olefins, dicarboxylic acids or dicarboxylic esters, etc.

In an embodiment, the present disclosure pertains to a composition having a cation and an anion. In some embodiments, a base is incorporated into the anion, and the cation and the anion form a bifunctional catalyst. In some embodiments, the cation is a chiral cobalt(III) species, and a nitrogenous Brpnsted base is incorporated into counter anions of the chiral cobalt(III) species cation. In some embodiments, the bifunctional catalyst is a tricationic cobalt(III) hydrogen bond donor catalyst, and a nitrogenous Brpnsted base is incorporated into counter anions of the tricationic cobalt(III) hydrogen bond donor catalyst. In another aspect, the present disclosure pertains to a bifunctional catalyst having a smart anion with a cationic metal species. In some embodiments, the smart anion performs a specific role in a chemical reaction without the inclusion of additional external components to accomplish a same specific role in the chemical reaction.

The present invention relates to a method for preparing an oligomerization catalyst system and the method comprises preparing a catalyst composition by mixing a PNP-based ligand compound and a transition metal compound, and mixing and activating a co-catalyst and the catalyst composition at a temperature from 40 to 80 C. The oligomerization catalyst system prepared by the method may maintain the activity thereof during an oligomerization reaction at a high temperature, and the reaction temperature of oligomerization may be easily controlled. Various merits in processing may be obtained.

A catalyst composition, including a titanate of the formula Ti(OR).sub.4 wherein each R is the same or different, and is a hydrocarbon residue; a catalyst additive, wherein the catalyst additive is a dibutyl ether a silicate, a silazane, an aromatic ether, a fluorocarbon, or a combination comprising at least one of the foregoing; and an organic aluminum compound.

Methods of preparing oligomers of an olefin are provided. The methods can include providing a composition that includes an alkylaluminum compound, a chromium compound, and a hydrocarbon solvent. The hydrocarbon solvent can include n-undecane, a C8-C11 alkane compound having one branch, or a mixture thereof. The methods can further include contacting an olefin with the composition to form oligomers of the olefin. The olefin can include ethylene, and the oligomers of the olefin can include 1-hexene.

The present invention relates to a process for the oligomerisation of olefins, in particular ethylene, via coordinative chain transfer polymerisation (CCTP) and alkyl elimation reaction. A preferred embodiment of the invention relates to CCTP of olefins, in particular ethylene, with the use of guanidinato, amidinato or hydrocarbyl-2-pyridyl amine complexes of titanium, zirconium or lanthanides, a nickel or cobalt compound as chain displacement catalyst (CDC) and one or more chain shuttling agents (CSA) such as a main group metal alkyl.