Mobil Oil Corporation

Exxonmobil Oil Corporation

Vaseem Firdaus

Pradeep P Shirodkar

Robert I Mink

Yury V Kissin

Anthony Poloso

Ahmed H Ali

Vincent Joseph Crotty

Paul Po-Luk Tong

Frank Herbert Puterbaugh

Kathleen K Cooper

Tomas A Geoghegan

Blown films of linear low density polyethylene are produced by a high stalk process comprising extruding the linear low density polyethylene through an annular die to form an extruded tube of molten material, cooling the extruded tube while drawing the tube so cooled, to maintain the tube diameter identical to that of the annular die and expanding the tube or bubble to attenuate the walls thereof by introducing a gas to the interior of the tube or bubble. The resulting films are characterized by superior impact strength and MD tear resistance.

High impact LLDPE films

Film forming blends, and films thereof, comprise copolymers of ethylene and alpha-olefins of 4 to 10 carbon atoms (LLDPE) containing up to about 35% of calcium carbonate exhibit excellent film impact properties which are sustained over time, without reduction in modulus or stiffness.

Blends of calcium carbonate and LLDPE

Control of polyethylene melt strength and melt viscosity has been used to produce foamed articles.

Foamed high density polyethylene

High impact LLDPE films with high stalk extrusion

A catalyst composition for copolymerizing ethylene with alpha-olefins is prepared by supporting a magnesium compound and a titanium compound on a solid, inert porous carrier, and activating the precursor with a mixture of dimethylaluminum chloride and a trialkylaluminum compound. Products with a bimodal molecular weight distribution are produced which are free of alpha-olefin oligomers.

Binary cocatalyst compositions for activating heterogeneous

A film of a linear low density copolymer of ethylene (LLDPE) having an Mz/Mw ratio of greater than 3.5 and exhibiting excellent optical properties and impact strength.

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Somerset, NJ, United States of America

Vaseem Firdaus