Nova Chemicals (International) S.a.

Nova Chemicals Inc.

Savini Udara Suduweli Kondage

Qinyan Wang

Amy Baltimore

Mark Kelly

Bradley Wade Funk

Tyler Craig

Jessamyn Ross Logan

In some embodiments provided herein is a self-supported phosphinimine single site catalyst having a molar ratio of Al from the activator (MAO) to the active metal in the catalyst from 5:1 to 30:1. The catalyst is prepared by precipitating an emulsion of the activated catalyst from a perfluoroalkane continuous phase resulting in spherical catalyst particles having a diameter typically from 5 to 200 &#x3bc;m.

Self supported phosphinimine catalyst

Some embodiments herein disclose a process for producing an ethylene polymer or copolymer which contains less than 5 ppm titanium and has a bulk density, in granular form, of at least 22.5 lbs/ft, using a spheroidal Ziegler-Natta type olefin polymerization catalyst having a particle size distribution characterized by a Dm*/Dn of less than 3.0 and comprising a titanium compound, an aluminum compound, and a spheroidal magnesium chloride support.

Process for polymerization using dense and spherical ziegler-natta type catalyst

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Endeavour, Australia

Savini Udara Suduweli Kondage