Dow Global Technolgoies LLC

Sasol Technology (pty) Limited

Timothy Wayne Gambrel

Mehmet Demirors

Yi Jin

Selim Yalvac

Morgan Mark Hughes

Rongjuan Cong

Shrikant Dhodapkar

Frank J Cerk

Kyle E Hart

Philip P Fontaine

Michael Joseph Zogg, Jr

Rajen M Patel

Pradeep Jain

Vivek Kalihari

Sean W Ewart

Kevin Blann

Michael D Turner

Curvel Hypolite

Daniela Ferrari

Jorge Rubalcaba

Jon W Hobson

Craig McGregor

Hrishikesh R Munj

Daniel S Rynearson

Francis O Olajide, Jr

Kipchirchir Andrew Boit

Umesh Ramdhani

Johan Van Leeuwen

Craig Mcgregor

Umesh Rhamdhani

Jr Michael J Zogg

Jr Zogg Michael Joseph

A cast film inducing a bimodal ethylene-based polymer having a high density fraction (HDF) from 3.0% to 10.0%, an I/Iratio from 5.5 to 7.0, a short chain branching distribution (SCBD) less than or equal to 10° C., a density from 0.910 g/cc to 0.920 g/cc, and a melt index (I) from 1.0 g/10 mins to 8.0 g/10 mins.

Cast films comprising bimodal ethylene-based polymers having high molecular weight high density fractions

A bimodal ethylene-based polymer, including a high density fraction (HDF) from 3.0% to 25.0%, wherein the high density fraction is measured by crystallization elution fractionation (CEF) integration at temperatures from 93° C. to 119° C., an I/Iratio from 5.5 to 7.5, wherein Iis the melt index when measured according to ASTM D 1238 at a load of 2.16 kg and temperature of 190° C. and Iis the melt index when measured according to ASTM D 1238 at a load of 10 kg and temperature of 190° C., and a short chain branching distribution (SCBD) less than or equal to 10° C., wherein the short chain branching distribution is measured by CEF full width at half height.

Bimodal ethylene-based polymers having high molecular weight high density fractions

A blown film having a bimodal ethylene-based polymer including a high density fraction (HDF) from 3.0% to 25.0%, an I/Iratio from 5.5 to 7.5, a short chain branching distribution (SCBD) less than or equal to 10 C, a zero shear viscosity ratio from 1.0 to 2.5, a density from 0.902 g/cc to 0.925 g/cc, and a melt index (I) from 0.5 g/10 mins to 2.0 g/10 mins.

Blown films comprising bimodal ethylene-based polymers having high molecular weight high density fractions

A method of producing bimodal ethylene-based polymer includes reacting ethylene monomer and C-C&#x3b1;-olefin comonomer in the presence of a first catalyst in an agitated reactor to produce a first polymer fraction, and outputting effluent from the agitated reactor. A second catalyst is added to the effluent downstream of the agitated reactor and upstream from a non-agitated reactor, the second catalyst facilitates production of a second polymer fraction having a density and melt index (I) different from the first polymer fraction. The second catalyst and effluent are mixed in at least one mixer. The second catalyst, second polymer fraction, and the first polymer fraction are passed to the non-agitated reactor; and additional ethylene monomer, additional C-C&#x3b1;-olefin comonomer, and solvent are passed to the non-agitated reactor to produce more second polymer fraction and thereby the bimodal ethylene-based polymer.

Process for the production of bimodal ethylene-based polymers having high molecular weight high density fractions

The invention provides compositions, each comprising an ethylene/alpha-olefin interpolymer, which has a reduced level of a low density, low molecular weight oligomeric fraction, as indicated by an HCC value, as described herein, and reduced levels of inorganic content or lower Tm. The invention also provides processes for forming such interpolymers.

Ethylene/alpha-olefin interpolymers with improved pellet flowability

Disclosed herein is a method for reducing isomerization during the copolymerization of ethylene with an &#x3b1;-olefin comprising adding to a reactor a reaction mixture comprising hydrogen, ethylene, an &#x3b1;-olefin, a solvent and a catalyst; where the catalyst does not include a chain shuttling agent that comprises dialkyl zinc; heating the reactor to a first temperature to react the ethylene with the &#x3b1;-olefin to form a copolymer; discharging from the reactor a first product stream to a heat exchanger; where the product stream comprises the copolymer; adding to the product stream prior to the heat exchanger a first additive that is operative to reduce isomerization of the &#x3b1;-olefin; and discharging from the heat exchanger a second product stream.

Method for isomer reduction during polymerization and system for accomplishing the same

Disclosed herein is a system comprising a first pump; a pelletization system that comprises an underwater pelletizer; where the pelletization system is located downstream of the first pump and is in fluid communication with it; a direct line that is located downstream of the first pump and upstream of the pelletization system; where the direct line does not contain a pump or a heat exchanger; and a bypass line that is located downstream of the first pump and upstream of the pelletization system; where the bypass line comprises a second pump; where the first pump is operative to discharge the polymer to the pelletization system via the direct line when the polymer has a melt viscosity greater than 10centipoise; and where the first pump is operative to discharge the polymer to the pelletization system via the bypass line when the polymer has a melt viscosity less than 10centipoise.

System for processing of low viscosity polymers

A method of cleaning fouled process equipment which includes a process vessel () fouled by an organic foulant, includes spraying a hydrocarbon stream at a pressure of at least 69 bar(g) at fouled surfaces inside the process vessel () thereby to dislodge the organic foulant from the fouled surfaces. The hydrocarbon stream is sprayed from at least one nozzle () located inside the process vessel (). The hydrocarbon stream is at a temperature below the melting point of the organic foulant or below the melting point of a major component of the organic foulant when the organic foulant is a multi-component organic foulant. The dislodged foulant is removed from the process vessel ().

Cleaning of process equipment

Growing community of inventors

Lake Jackson, TX, United States of America

Timothy Wayne Gambrel