A ligand defined by the formula: (Ph1)(Ph2) P - N - P (Ph3)(Ph4)      I                             R2  wherein each of Ph1, Ph2, Ph3 and Ph4 is a phenyl group bonded to a   phosphorus atom, with the provisos that    i) upto three of Ph1, Ph2, Ph3 and Ph4 is ortho substituted with a        ...

The present invention provides a novel catalyst preparation method to substantially increase the polymer molecular weight in the high temperature solution process. The method utilizes mixing and heating a mixture of Aluminum alkyl/dialkyl Magnesium with a chlorinating compound, prior to reacting with Transition meta...

A supported catalyst for olefin polymerization comprises a selected ionic activator, a selected organometallic catalyst and a support material. The selected activator must contain an active hydrogen moeity. The organometallic catalyst is characterized by having a phosphinimine ligand and a substituted cyclopentadien...

The use of high activity "Single Site" polymerization catalysts often causes the fouling of polymerization reactors. The problem is particularly acute with gas phase polymerizations. While not wishing to be bound by theory it is believed that the fouling is initiated by the buildup of static charges in the reactor. ...

A catalyst system for olefin polymerization comprising:a catalyst support component comprising aluminoxane which is deposited on a sulfated metal oxide, wherein said sulfated metal oxide is characterized by being prepared by directly treating a particulate metal oxide with a material having an SO4 grou...

The various embodiments of the present invention relate to a polymerization reactor where the agitator mixing performance is optimized for use with a high activity catalyst and methods for developing the same.