Exxonmobil Chemical Patents Inc.

Exxonmobil Oil Corporation

Mobil Oil Corporation

Univation Technologies, LLC

Mobil Corporation

Sandra Denise Schregenberger

Pradeep P Shirodkar

Thomas E Nowlin

Robert I Mink

Grace O Tsien

David John Lohse

Bryan Robert Chapman

Bruce R Lundmark

Wen Li

Yury V Kissin

Chon-Yie Lin

Manika Varma-Nair

Henry Wu-Hsiang Yang

Robert J Wittenbrink

Chia Yung Cheng

Norman Yang

James Norris Coffey

S Christine Ong

Petra Eiselt

Galina Ourieva

Jeffrey Theodore Zudock

Henry W Yang

John T Hsieh

Kenneth George Schurzky

Michael Brian Kelly

Porter Clarke Shannon

Anthony Poloso

Ann L Pruden

Ahmed H Ali

Vincent Joseph Crotty

Giyarpuram N Prasad

David B Barry

Brian J Egan

Frederick Yip-Kwai Lo

Keith J Kauffman

Jeffery Zudock

The present invention relates to plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer.

Plasticized polyolefin compositions

The present invention relates to articles made from plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer.

Articles from plasticized polyolefin compositions

The present invention relates to a composition comprising more than 25 weight % (based on the weight of the composition) of one or more ethylene polymers having an Mof 20,000 g/mole or more and at least 0.1 weight % of a liquid hydrocarbon modifier where the modifier has:

Modified polyethylene compositions

The invention relates to a process for uniformly dispersing a transition metal metallocene complex on a carrier comprising

Bimetallic catalyst for ethylene polymerization reactions with uniform component distribution

A process of forming a bimetallic catalyst composition comprising a cocatalyst (a trialkylaluminum compound) and a catalyst precursor. The precursor comprises at least two transition metals; a metallocene complex is a source of one of said two transition metals. The precursor is produced in a single-pot process by contacting a porous carrier, in sequence, with a dialkylmagnesium compound, an aliphatic alcohol, a non-metallocene transition metal compound, a contact product of a metallocene complex and a trialkyl-aluminum compound, and methylalumoxane.

One pot preparation of bimetallic catalysts for ethylene 1-olefin copolymerization

A process for controlling the MWD of a broad or bimodal resin in a single fluid bed reactor using a mixed catalyst composition containing a bimetallic catalyst and a make-up catalyst of at least one metallic component of the bimetallic catalyst. The bimetallic catalyst, which is formed with at least one metallocene of a transition metal, produces broad or bimodal molecular weight distribution polyolefin resin whose composition depends on the ratio of the concentration of the two catalyst components producing the HMW/LMW components. The make-up catalyst consisting of a single metal component is added in proportion necessary to make-up the deficiencies in the amount of the HMW/LMW component. The type of make-up catalyst added depends on whether increase of the HMW or LMW component produced by the bimetallic catalyst is sought. The mixed catalyst compostion may be fed into the reactor as a mixture or through separate catalyst ports of the reactor.

Process for controlling the MWD of a broad or bimodal resin in a single reactor

A class of relatively high molecular weight, high density ethylene polymers (HMW-HDPE) is disclosed capable of being formed into thin films of high strength, such polymers having a density of at least about 0.925 g/cc, a flow index (I ) no higher than about 15 g/10 min., a melt flow ratio (MFR) of at least about 65, and a dynamic elasticity at 0.1 rad./sec. of no higher than about 0.7 at a corresponding complex viscosity at 0.1 rad./sec. no higher than about 14&times;10 poises. The ethylene polymer is a bimodal of relatively high molecular weight (HMW) and low molecular weight (LMW) ethylene polymers.

Ethylene polymer film resins

A catalyst composition for the polymerization of one or more 1-olefins (e.g., ethylene) comprises a transition metal catalyst precursor and a cocatalyst, the transition metal catalyst precursor comprising a contact product of an unsubstituted metallocene compound and an aluminum alkyl compound in a hydrocarbon solvent solution. In another embodiment, the transition metal catalyst precursor is bimetallic and contains a non-metallocene transition metal catalyst component. When a bimetallic catalyst precursor is used, the resin product exhibits improved properties, and has a bimodal molecular weight distribution, long chain branching (LCB), and good bubble stability.

Metallocene catalyst compositions, processes for making polyolefin resins using such catalyst compositions, and products produced thereby

Growing community of inventors

Hillsborough, NJ, United States of America

Sandra Denise Schregenberger