Mobil Oil Corporation

Chevron Chemical Company LLC

Exxonmobil Oil Corporation

Michael J Krause

Pradeep P Shirodkar

Ronald G Abbott

David L Beach

Frederick Y Lo

Allan B Furtek

Shih-May Christine Ong

Steven M Chranowski

Frederick Yip-Kwai Lo

Robert Phillip Duttweiler

The invention relates to alteration of a linear low density polyethylene which is ordinarily free of long chain branching to introduce long chain branching into the polymer.

Terpolymers

Disclosed is a catalyst precursor, useful to make catalysts useful in the polymerization of olefins, comprising the product obtained by adding a preformed magnesium source to a solution comprising a solvent having dissolved therein a transition metal compound and an alkyl halide.

Transition metal-magnesium catalyst precursors for the polymerization of

A catalyst precursor is formed by providing in slurry: (1) a carrier, which is porous and in the form of particles, or spheres, preferably particles of a crosslinked polymer, having a particle diameter of about 1 to about 300 microns, a porosity of about 0.001 to about 10 cc/gm, and a surface area of about 1 to about 1,000 m.sup.2 /gm; (2) a metallocene complex having an empirical formula

Supported metallocene catalysts for the production of polyolefins

A catalyst precursor composition comprises the reaction product of a cation exchange resin containing trityl carbonium ions contacted with a metallocene. The process of producing the reaction product of a cation exchange resin containing trityl carbonium ions contacted with a metallocene comprises

Metallocenes supported on ion exchange resins

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East Brunswick, NJ, United States of America

Michael J Krause