Chevron Phillips Chemical Company LP

Phillips Petroleum Company

Phillips Petroleum Company Washington County

Lloyd W Guatney

Qing R Yang

Errun Ding

Max P McDaniel

Youlu Yu

Albert P Masino

Jim B Askew

Kathy S Collins

Ashish M Sukhadia

Chung Ching Tso

Guylaine St Jean

Daniel G Hert

Jeffrey F Greco

Nancy W Eilerts

Qing Yang

Guylaine STJEAN

Max P Mcdaniel

Catalyst systems containing a Ziegler-Natta catalyst component are disclosed. Such catalyst systems can contain a co-catalyst and a supported catalyst containing a fluorided silica-coated alumina, a magnesium compound, and vanadium and/or tetravalent titanium.

Heterogeneous Ziegler-Natta catalysts with fluorided silica-coated alumina

Catalyst systems having both a metallocene catalyst component and a Ziegler-type catalyst component are disclosed. Such catalyst systems can contain a metallocene compound, a co-catalyst, and a supported catalyst containing a fluorided silica-coated alumina, a magnesium compound, and vanadium and/or tetravalent titanium.

Ziegler-natta&#x2014;metallocene dual catalyst systems with activator-supports

Disclosed herein are broad molecular weight distribution olefin polymers having densities in the 0.895 to 0.930 g/cmrange, and with improved impact and tear resistance. These polymers can have a ratio of Mw/Mn in the 8 to 35 range, a high load melt index in the 4 to 50 range, less than about 0.008 LCB per 1000 total carbon atoms, and a reverse comonomer distribution.

Low density polyolefin resins and films made therefrom

Disclosed herein are polymerization processes for the production of olefin polymers. These polymerization processes can use a dual catalyst system containing a zirconium or hafnium based metallocene compound and a titanium based half-metallocene compound containing an indenyl group.

Metallocene and half sandwich dual catalyst systems for producing broad molecular weight distribution polymers

Methods of controlling polymerization reactions using a synergistic amount of hydrogen and an organozinc compound are disclosed. The resulting polymers have lower molecular weights and higher melt flow indices.

Use of hydrogen and an organozinc compound for polymerization and polymer property control

Novel catalyst systems which comprise one or more diimine nickel(II) or palladium (II) complexes, one or more cocatalysts, and aluminophosphate are disclosed. Olefin polymerization processes using those catalyst systems are also disclosed. The inclusion of aluminophosphate can improve the activity or productivity of such catalyst systems, making such catalyst systems active or more active in olefin polymerization under conditions in which they had previously been inactive or insufficiently active.

Effect of aluminophosphate on catalyst systems comprising metal alkyl cocatalysts

Novel catalyst systems which comprise one or more diimine nickel (II) or palladium (II) complexes, one or more cocatalysts, and aluminophosphate are disclosed. Olefin polymerization processes using those catalyst systems are also disclosed. The inclusion of aluminophosphate can improve the activity or productivity of such catalyst systems, making such catalyst systems active or more active in olefin polymerization under conditions in which they had previously been inactive or insufficiently active.

Growing community of inventors

Bartlesville, OK, United States of America

Lloyd W Guatney