A metallocene catalyst compound can comprise a structure represented by formula (F-MC) below comprising a first cyclopentadienyl ring with carbon atoms directly connected with R.sup.1, R.sup.2, R.sup.4, and R.sup.5, and a second cyclopentadienyl ring with carbon atoms directly connected with R.sup.10, R.sup.11, R.sup.12, and R.sup.13, and a bridging group (BG) directly connecting the first and second cyclopentadienyl rings ##STR00001##
A catalyst system can include the metallocene compound, a non-coordinating anion type activator comprising a supported alumoxane or aluminum alkyl, and optionally a scavenger. A process for making a polymeric product can comprise: contacting a C2-C22 alpha-olefin feed with the catalyst system to obtain a polymerization reaction mixture; and obtaining a polymer product from the polymerization reaction mixture. A polymer product can be made by the process to exhibit at least an Mn from 7000 g/mol to 70000 g/mol and a PDI from 4.1 to 9.0.

A metallocene catalyst compound can comprise a structure represented by formula (F-MC) below comprising a first cyclopentadienyl ring with carbon atoms directly connected with R.sup.1, R.sup.2, R.sup.4, and R.sup.5, and a second cyclopentadienyl ring with carbon atoms directly connected with R.sup.10, R.sup.11, R.sup.12, and R.sup.13, and a bridging group (BG) directly connecting the first and second cyclopentadienyl rings ##STR00001##
A catalyst system can include the metallocene compound, a non-coordinating anion type activator comprising a supported alumoxane or aluminum alkyl, and optionally a scavenger. A process for making a polymeric product can comprise: contacting a C2-C22 alpha-olefin feed with the catalyst system to obtain a polymerization reaction mixture; and obtaining a polymer product from the polymerization reaction mixture. A polymer product can be made by the process to exhibit at least an Mn from 7000 g/mol to 70000 g/mol and a PDI from 4.1 to 9.0.

The present invention provides a supported catalyst system comprising: a bridged group 4 metallocene compound, an iron compound, specifically a 2,6-bis(imino)pyridyl iron complex, a support material and an activator. The present invention further provides a process for polymerization of monomers (such as olefin monomers) comprising contacting one or more monomers with the above supported catalyst systems.

The present invention provides a supported catalyst system comprising: a bridged group 4 metallocene compound, an iron compound, specifically a 2,6-bis(imino)pyridyl iron complex, a support material and an activator. The present invention further provides a process for polymerization of monomers (such as olefin monomers) comprising contacting one or more monomers with the above supported catalyst systems.

Catalysts, catalysts systems and methods of polymerizing olefins are provided. The catalyst system may contain two catalysts. Polyolefin polymers are also provided.

Catalysts, catalysts systems and methods of polymerizing olefins are provided. The catalyst system may contain two catalysts. Polyolefin polymers are also provided.

Provided herein are polyethylene compositions suitable in the fabrication of PE-RT pipes for use in cold and hot water plumbing in accordance with ISO 22391-2, and processes for making the same.

Provided herein are polyethylene compositions suitable in the fabrication of PE-RT pipes for use in cold and hot water plumbing in accordance with ISO 22391-2, and processes for making the same.

In an embodiment, a pipe includes a polyethylene composition that includes ethylene and an alpha-olefin comonomer, wherein the polyethylene composition has a melt index of from 0.1 g/10 min to 1 g/10 min, a density of from 0.93 g/cm.sup.3 to 0.94 g/cm.sup.3, and a melt index ratio of from 40 to 70, and wherein the pipe has a 20 C. long term hydrostatic strength of from 5 MPa to 10.1 MPa. In another embodiment, a method of making a pipe includes extruding any polyethylene composition described herein. In another embodiment, an article includes a polyethylene composition described herein. In another embodiment, a polyethylene composition having a melt index of from 0.1 g/10 min to 1 g/10 min, a density of from 0.93 g/cm.sup.3 to 0.94 g/cm.sup.3, and a melt index ratio of from 40 to 70 is provided.

In an embodiment, a pipe includes a polyethylene composition that includes ethylene and an alpha-olefin comonomer, wherein the polyethylene composition has a melt index of from 0.1 g/10 min to 1 g/10 min, a density of from 0.93 g/cm.sup.3 to 0.94 g/cm.sup.3, and a melt index ratio of from 40 to 70, and wherein the pipe has a 20 C. long term hydrostatic strength of from 5 MPa to 10.1 MPa. In another embodiment, a method of making a pipe includes extruding any polyethylene composition described herein. In another embodiment, an article includes a polyethylene composition described herein. In another embodiment, a polyethylene composition having a melt index of from 0.1 g/10 min to 1 g/10 min, a density of from 0.93 g/cm.sup.3 to 0.94 g/cm.sup.3, and a melt index ratio of from 40 to 70 is provided.