Dow Global Technolgoies LLC

Frederik E Gemoets

Kalyan Sehanobish

Noorallah Jivraj

Johan Vanvoorden

Jozef Van Dun

Patrick J C Schouterden

Ruddy A J Nicasy

Ravi S Dixit

Peter F Van Den Berghen

Cornelis F J Den Doelder

Ravindra S Dixit

Jesus Nieto

Anthony J Castelluccio

Patrick J Schouterden

David Lopez

Barbara Bonavoglia

Peter F M Van Den Berghen

Ruddy Nicasy

Stacey Hyde

Jozef J Van Dun

Jozef J Vandun

The present disclosure provides a linear low density polyethylene composition, tapes, fibers and filaments, artificial turfs, and method of making the same. The linear low density polyethylene composition according to the present disclosure exhibits each of the following properties: (1) a CEF fraction from 70 to 90&#xb0; C. of equal to or greater than 80% of the total CEF fractions; (2) a melt index, I, measured according to ASTM D 1238 (2.16 kg @190&#xb0; C.), in the range of equal to or greater than 2.0 g/10 min and equal to or less than 5.0 g/10 min; and (3) a melt flow ratio, I/I, of equal to or less than 6.7.

Artificial turfs and method of making the same

A process for recycling solvent used in an ethylene-based polymerization comprising: passing a solvent stream which has been used in a first ethylene-based solvent polymerization reactor through an online purification bed to produce a recycle solvent stream, wherein the solvent stream prior to being passed through the online purification bed comprises solvent, ethylene, hydrogen, polymerization by-products and optionally comonomer; and passing the recycle solvent stream from the online purification bed to a second ethylene-based solvent polymerization reactor; wherein the second ethylene-based solvent polymerization reactor exhibits a catalyst efficiency dip of less than or equal to 20% for no longer than a forty-eight hour period following a swap of the online purification bed to a regenerated purification bed which contains an adsorbent having low reactivity to alkenes is provided.

Process for recycling solvent used in an ethylene-based polymerization reaction and system therefor

The invention relates to a polyethylene composition with a bimodal molecular weight distribution and articles made therefrom, such as high topload blow moldings and transmission and distribution pipes. The composition comprises a low-molecular-weight (LMW) ethylene homopolymer component and a homogeneous, high-molecular-weight (HMW) ethylene interpolymer component, wherein the LMW component is characterized as having a molecular weight distribution, MWD, of less than about 8. The composition is characterized as having a bimodal molecular weight distribution, and a ductile-brittle transition temperature, T, of less than &#x2212;20&#xb0; C. In some embodiments, the HMW component is characterized by a reverse comonomer distribution.

Bimodal polyethylene composition and articles made therefrom

The invention relates to a polyethylene composition with a bimodal molecular weight distribution, methods for making the same, and articles made therefrom, such as high topload blow moldings and transmission and distribution pipes. The composition comprises a low-molecular-weight (LMW) ethylene homopolymer component and a homogeneous, high-molecular-weight (HMW) ethylene interpolymer component, wherein the LMW component is characterized as having a molecular weight distribution, MWD, of less than about 8. In some embodiments, the HMW component is characterized by a reverse comonomer distribution.

The invention relates to a polyethylene composition with a bimodal molecular weight distribution and articles made therefrom. The composition comprises a low-molecular-weight (LMW) ethylene homopolymer component and a homogeneous, high-molecular-weight (LMW) ethylene interpolymer component, wherein the LMW component is characterized as having a molecular weight distribution, MWD, of less than about 8. In some embodiments, the HMW component is characterized by a reverse comonomer distribution.

Bimodal polyethylene pipe composition and article made therefrom

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Wommelgem, Belgium

Frederik E Gemoets