Abstract: The present invention provides a novel process for preparing a catalyst, preferably free of electron donor, useful in gas phase polymerization of olefins having a broad polydispersity.

Abstract: The present invention provides containers for chemicals which require a high purity, such as chemicals for use in manufacturing computer chips and pharmaceuticals. Such containers should not contaminate the contents due to extraction or other phenomena. The present invention provides a container having a low metals content and a low hydrogen peroxide extractables.

Abstract: The extrusion of thermoplastic polyolefin, especially linear low density polyethylene (LLDPE) is improved by the use of a processing additive comprising a blend of a thermoplastic acrylic polymer and a fluorocarbon polymer. In a preferred embodiment, the processing additive is a homogeneous blend of a thermoplastic styrene/methyl methacrylate polymer and a thermoplastic copolymer of vinylidene fluoride and hexafluoropropylene. The polyolefin extrudates produced according to this invention have reduced levels of melt fracture when extruded in conventional polymer extrusion equipment.

Abstract: Polyesters having a reduced gel content may be made from dicyclopentadiene having a purity of less than about 90% by incorporating from 30 to 200 ppm of an aromatic inhibitor into the dicyclopentadiene prior to reacting the glycol and carboxylic acid to form the polyester.