Abstract: Mixtures of different polyolefins may be made by direct, preferably simultaneous, polymerization of one or more polymerizable olefins using two or more transition metal containing active polymerization catalyst systems, at least one of which contains cobalt or iron complexed with selected ligands. The polyolefin products may have polymers that vary in molecular weight, molecular weight distribution, crystallinity, or other factors, and are useful as molding resins and for films.

Abstract: A polymerization to form a branched polyolefin, in which polymerization an ethylene copolymerization catalyst and an ethylene oligomerization catalyst form a series of ethylene oligomers that are ?-olefins are both present, gives an improved polyethylene if the oligomerization catalyst has a relatively high Schulz-Flory constant.

Abstract: An ethylene oligomerization catalyst that oligmerizes ethylene to a series of ?-olefins and that has a Schulz-Flory constant of about 0.75 to 0.995 produces a stream of ?-olefins. This stream is then added to a vessel containing ethylene and a copolymerization catalyst that copolymerizes ethylene and ?-olefins. The resulting branched polyethylene often has good processing properties. The good processing is presumably due to the presence of “long chain branching”. Such polymers are useful for films and other packaging materials, and for molding resins for molding parts such as industrial, automotive or electrical parts.

Abstract: In an ?-olefin manufacturing process by the oligomerization of ethylene using an iron complex of a diimine of a 2,6-diacylpyridine or a 2,6-pyridinecarboxaldehyde, in which certain substituted iminoaryl groups are present, less higher molecular weight unwanted products are produced when the diimine and/or its precursor arylamine does not have impurities with substitution on a second ortho position to the imino group. This leads to less fouling of the process apparatus and higher yields of desired ?-olefins.

Abstract: A polymerization process for copolymerizing ethylene and a series of ?-olefins to form a branched polyethylene, in which the series of ?-olefins is generated in-situ by an ethylene oligomerization catalyst, is improved if the oligomerization catalyst has a Schulz-Flory constant of about 0.30 to about 0.55. This makes very little higher molecular weight ?-olefins, which allows for easy removal of unpolymerized ?-olefins from the polyolefin product.

Abstract: A lubricant component is a copolymer of ethylene and ?-olefins made by forming a series of ?-olefins by oligomerization of ethylene using an oligomerization catalyst, and then copolymerizing the ?-olefins and ethylene using a transition metalcontaining polymerization catalyst. The copolymer, which often has a high Viscosity Index, may be used, for example, in a lubricant as the base oil or a viscosity index modifier. The polyolefin may also be a component of a lubricant additive, meant to be added to an already formulated lubricant to improve the lubricant's properties.

Abstract: An ethylene oligomerization catalyst that oligmerizes ethylene to a series of ?-olefins and that has a Schulz-Flory constant of about 0.75 to 0.995 produces a stream of ?-olefins. This stream is then added to a vessel containing ethylene and a copolymerization catalyst that copolymerizes ethylene and ?-olefins. The resulting branched polyethylene often has good processing properties. The good processing is presumably due to the presence of “long chain branching”. Such polymers are useful for films and other packaging materials, and for molding resins for molding parts such as industrial, automotive or electrical parts.

Abstract: A polymerization to form a branched polyolefin, in which polymerization an ethylene copolymerization catalyst and an ethylene oligomerization catalyst form a series of ethylene oligomers that are ?-olefins are both present, gives an improved polyethylene if the oligomerization catalyst has a to relatively high Schulz-Flory constant.

Abstract: Higher molecular weight linear ?-olefins are produced by the oligomerization of ethylene using certain iron complexes of 2,6-diacylpyridinedimimines or 2,6-pyridinedicarboxaldehydedimines as catalysts. These iron complexes are more sterically hindered than those heretofore used. The resulting ?-olefins are useful as comonomers in olefin polymerizations.

Abstract: A polymerization process for copolymerizing ethylene and a series of ?-olefins to form a branched polyethylene, in which the series of ?-olefins is generated in-situ by an ethylene oligomerization catalyst, is improved if the oligomerization catalyst has a Schulz-Flory constant of about 0.30 to about 0.55. This makes very little higher molecular weight ?-olefins, which allows for easy removal of unpolymerized ?-olefins from the polyolefin product.

Abstract: In an ?-olefin manufacturing process by the oligomerization of ethylene using an iron complex of a diimine of a 2,6-diacylpyridine or a 2,6-pyridinecarboxaldehyde, in which certain substituted iminoaryl groups are present, less higher molecular weight unwanted products are produced when the diimine and/or its precursor arylamine does not have impurities with substitution on a second ortho position to the imino group. This leads to less fouling of the process apparatus and higher yields of desired ?-olefins.

Abstract: Mixtures of different polyolefins may be made by direct, preferably simultaneous, polymerization of one or more polymerizable olefins using two or more transition metal containing active polymerization catalyst systems, at least one of which contains cobalt or iron complexed with selected ligands. The polyolefin products may have polymers that vary in molecular weight, molecular weight distribution, crystallinity, or other factors, and are useful as molding resins and for films.

Abstract: Mixtures of different polyolefins may be made by direct, preferably simultaneous, polymerization of one or more polymerizable olefins using two or more transition metal containing active polymerization catalyst systems, at least one of which contains cobalt or iron complexed with selected ligands. The polyolefin products may have polymers that vary in molecular weight, molecular weight distribution, crystallinity, or other factors, and are useful as molding resins and for films.

Abstract: Catalysts for the polymerization of olefins are provided. The catalysts comprise: (a) a first active polymerization catalyst which is a Fe or Co complex of a ligand of the formula: wherein: R1, R2 and R3 are each independently hydrogen, hydrocarbyl, substituted hydrocarbyl, or an inert functional group; R4 and R5 are each independently hydrogen, hydrocarbyl, an inert functional group or substituted hydrocarbyl; and R6 and R7 are aryl or substituted aryl; and (b) a second active polymerization catalyst which contains one or more transition metals; and (c) a catalyst support.

Abstract: Mixtures of different polyolefins may be made by direct, preferably simultaneous, polymerization of one or more polymerizable olefins using two or more transition metal containing active polymerization catalyst systems, at least one of which contains cobalt or iron complexed with selected ligands. The polyolefin products may have polymers that vary in molecular weight, molecular weight distribution, crystallinity, or other factors, and are useful as molding resins and for films.

Abstract: A polymerization catalyst system, containing a specified ratio of two iron complexes of a bisimine of 2,6-diacylpyridine or a bisimine of a 2,6-pyridinedicarboxaldehyde which produce polyolefins of differing molecular weights, is useful for producing polyolefins, especially polyethylenes, which are particularly useful for blow molding.

Abstract: Drumsticks made from thermoplastic or thermoset resin compositions containing a reinforcing agent and having certain physical properties are readily formed, have good playing characteristics, and are durable.

Abstract: Blends of two or more polyethylenes are made by reacting ethylene with an oligomerization catalyst that forms ?-olefins, and two polymerization catalysts, one of which under the process conditions copolymerizes ethylene and ?-olefins, and the other of which under process conditions does not readily copolymerize ethylene and ?-olefins. The blends may have improved physical properties and/or processing characteristics.

Abstract: Higher trialkylaluminum compounds may be made by forming ?-olefin by oligomerizing ethylene using a transition metal containing catalyst, reacting the ?-olefins formed with a lower trialkylaluminum compound to form higher trialkylaluminum compound(s) These may optionally be oxidized, as with oxygen, to form higher trialkoxyaluminum compound, which in turn may be hydrolyzed to ?-alcohols. In one variation of the process lower ?-olefins and higher (relatively) ?-alcohols may be formed and isolated. Higher trialkylaluminum compounds and ?-alcohols are useful as chemical intermediates, while lower ?-olefins are useful as monomers for polyolefins.

Abstract: Higher trialkylaluminum compounds may be made by forming &agr;-olefin by oligomerizing ethylene using a transition metal containing catalyst, reacting the &agr;-olefins formed with aluminum and hydrogen to form higher trialkylaluminum compounds. These may optionally be oxidized, as with oxygen, to form higher trialkoxyaluminum compound, which in turn may be hydrolyzed to &agr;-alcohols. Higher trialkylaluminum compounds and &agr;-alcohols are useful as chemical intermediates.