Ineos Olefins & Polymers Usa, a Division of Ineos USA LLC

Ineos Olefins & Polymers USA

Joshua Allen Cottle

Mark Anthony Gessner

Robert Ernest Sander

Luc Dheur

Bimodal high-density polyethylene polymer compositions with increased high melt strength and good processability. The compositions comprise a base resin having a density of about 945 kg/mto about 955 kg/m, and an ethylene polymer (A) having a density of at least about 968 kg/m, in an amount ranging from 45% to 55% by weight and an ethylene polymer (B) having a density lower than the density of polymer (A). The composition has a complex viscosity at a shear rate of 0.01 rad/s ranging from about 200 to 450 kPa&#xb7;s and a complex viscosity at a shear rate of 100 rad/s ranging from about 1900 to 2500 Pa&#xb7;s. Articles made from these compositions, such as pipes and fittings achieve long-term oxidative resistance and have a low wall thickness variability while maintaining high production output.

Bimodal high-density polyethylene resins and compositions with improved properties and methods of making and using the same

The present disclosure is related to bimodal high-density polyethylene polymer compositions with increased high melt strength and good processability comprising a base resin which has a density of about 945 kg/mto about 955 kg/m, and comprises an ethylene polymer (A) having a density of at least about 968 kg/m, in an amount ranging from 45% to 55% by weight and an ethylene polymer (B) having a density lower than the density of polymer (A) wherein said composition has a complex viscosity at a shear rate of 0.01 rad/s ranging from about 200 to about 450 kPa&#xb7;s and a complex viscosity at a shear rate of 100 rad/s ranging from about 1900 to about 2500 Pa&#xb7;s. The present disclosure also relates to methods of making, and using the present compositions, and to articles made from there composition, and preferably to pipes and fittings.

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Houston, TX, United States of America

Joshua Allen Cottle