Drag-reducing polymers and methods of manufacturing drag-reducing polymers are provided. In one aspect, an ultra-high molecular weight terpolymer useful as a drag reducer for hydrocarbons having a molecular weight greater than 1 million is provided. The terpolymer includes (a) a first monomer including a first alpha-olefin monomer having a carbon chain length of between 4 and 9 carbon atoms. The terpolymer further includes (b) a second monomer including a second alpha-olefin monomer having a carbon chain length of between 12 and 15 carbon atoms. The terpolymer further includes (c) a third monomer including a third alpha-olefin monomer having a carbon chain length of between 10 and 11 carbon atoms, wherein the second monomer is present at greater than or at 15% (molar content).

Drag-reducing polymers and methods of manufacturing drag-reducing polymers are provided. In one aspect, an ultra-high molecular weight terpolymer useful as a drag reducer for hydrocarbons having a molecular weight greater than 1 million is provided. The terpolymer includes (a) a first monomer including a first alpha-olefin monomer having a carbon chain length of between 4 and 9 carbon atoms. The terpolymer further includes (b) a second monomer including a second alpha-olefin monomer having a carbon chain length of between 12 and 15 carbon atoms. The terpolymer further includes (c) a third monomer including a third alpha-olefin monomer having a carbon chain length of between 10 and 11 carbon atoms, wherein the second monomer is present at greater than or at 15% (molar content).

A modified spray-dried Ziegler-Natta (pro)catalyst system comprising a Ziegler-Natta (pro)catalyst, a carrier material, and a tetrahydrofuran/ethanol modifier; polyolefins; methods of making and using same; and articles containing same.

A modified spray-dried Ziegler-Natta (pro)catalyst system comprising a Ziegler-Natta (pro)catalyst, a carrier material, and a tetrahydrofuran/ethanol modifier; polyolefins; methods of making and using same; and articles containing same.

An activated, titanium-based, spray-dried Ziegler-Natta catalyst system containing a titanium-based Ziegler-Natta catalyst, a carrier material, and an activator mixture comprising an effective amount of an activator mixture comprising triethylaluminum and diethylaluminum chloride for producing a substantially uniform comonomer composition distribution. Also, polyolefins; methods of making and using same; and articles containing same.

A process for reducing the loss of catalyst activity of a Ziegler-Natta catalyst is provided. The process includes preparing a Ziegler-Natta (ZN) catalyst by contacting the ZN catalyst with at least one aluminum alkyl compound to produce a reduced ZN catalyst and storing and/or transporting the reduced ZN catalyst for at least 20 days at a temperature of 25° C. or less. The reduced ZN catalyst may be used for polymerizing polyolefin polymers.

A process for reducing the loss of catalyst activity of a Ziegler-Natta catalyst is provided. The process includes preparing a Ziegler-Natta (ZN) catalyst by contacting the ZN catalyst with at least one aluminum alkyl compound to produce a reduced ZN catalyst and storing and/or transporting the reduced ZN catalyst for at least 20 days at a temperature of 25° C. or less. The reduced ZN catalyst may be used for polymerizing polyolefin polymers.

A process for reducing the loss of catalyst activity of a Ziegler-Natta catalyst is provided. The process includes preparing a Ziegler-Natta (ZN) catalyst by contacting the ZN catalyst with at least one aluminum alkyl compound to produce a reduced ZN catalyst and storing and/or transporting the reduced ZN catalyst for at least 20 days at a temperature of 25° C. or less. The reduced ZN catalyst may be used for polymerizing polyolefin polymers.

A combination comprising a receptacle of defined internal volume, which contains a chemical reaction product. The product may be made in apparatus for undertaking a chemical reaction which comprises an elongate housing and a receptacle. The elongate housing may include a cooling means and end fittings which may include ports where fluids may be introduced and/or removed.

A combination comprising a receptacle of defined internal volume, which contains a chemical reaction product. The product may be made in apparatus for undertaking a chemical reaction which comprises an elongate housing and a receptacle. The elongate housing may include a cooling means and end fittings which may include ports where fluids may be introduced and/or removed.