Fina Technology, Inc.

Cosden Technology, Inc.

Total Research & Technology Feluy

Total Petrochemicals Research Feluy

Jose M Sosa

David W Knoeppel

Jay L Reimers

Aron T Griffith

Wei Wang

Carlos R Corleto

Cyril Chevillard

Billy J Ellis

John Tomlinson

Stan Beisert

Carlos DeAnda

Douglas A Berti

Graciela Morales

Camille Grossetete

Shane Steagall

Fengkui Li

Luyi Sun

Jeffrey M Morris

Likuo Sun

Scott Cooper

Lu Ann Kelly

Thanh Tri Nguyen

Kenneth Paul Blackmon

Michel Daumerie

Mark Leland

Philippe Lodefier

Michel Duc

Shazia Ullah

Roy Kennedy

Brad Klussmann

Serge Eon

Carlos Corletto

Juan Aguirre

Theodore Harris

LuAnn Kelly

Doug Berti

Giovanni Trimino

Joe Shuler

Scott Winfield Davis

Carlos De Anda

Brad Stiles

Jianbo Li

J Todd Reaves

David K Knoeppel

Jon Schweinle

Robert M Scates

James N Weguespack

Bruce P Blackmar

Jimmy D Nichols

Bradley Stiles

Stéphane Nowé

Todd J Reaves

Douglas Berti

A process for producing high impact polystyrene comprising introducing to a reactor a partially-polymerized mixture comprising at least one vinyl aromatic monomer, an elastomer and reacted vinyl aromatic monomer wherein the partially-polymerized mixture has not undergone phase inversion; polymerizing the partially-polymerized mixture in the reactor to the phase inversion point to form a phase-inverted mixture; recovering a portion of the phase-inverted mixture from the reactor wherein the phase-inverted mixture comprises high impact polystyrene; and introducing another portion of the phase-inverted mixture to another reactor.

Methods for production of high impact polystyrene having an improved rubber morphology

A styrenic composition including a polar modified styrenic co-polymer resulting from the polymerization of a combined mixture of at least one styrenic monomer and at least one comonomer and a biodegradable component is disclosed. The at least one comonomer includes a polar functional group and the polar modified styrenic co-polymer and the biodegradable component are combined to obtain a styrenic composition having a biodegradable component. Also disclosed is a method of enhancing bio-polymer miscibility in a styrenic based polymer. The polarity of a blend is manipulated by combining a styrenic monomer and a polar co-monomer to form a combined mixture and subjecting the combined mixture to polymerization to obtain a styrenic polymer blend to which a bio-polymer is added.

Polarity manipulation in polystyrene for enhanced bio-polymer miscibility

A vessel header includes lateral flow tubes arranged in a parallel configuration. The lateral flow tubes enter the vessel header through alternating vessel header penetrations with a single vessel header penetration per lateral flow tube. Each lateral flow tube has a perforated section within the vessel header having a non-circular cross-section having the shape of a circular sector, an elliptical sector, or an irregular quadrilateral. A method includes passing a molten polymer through the lateral flow tubes of the vessel header. The molten polymer exits the lateral flow tubes as strands through perforations in the lateral flow tubes within the vessel header. The method includes obtaining devolatilized polymer.

Nozzle/header design for polystyrene

A process for producing a high impact polystyrene having a high swell index may include feeding at least one vinyl aromatic monomer and at least one elastomer to at least one polymerization reactor to form a reaction mixture. The process may include polymerizing the reaction mixture, combining a chain transfer agent to the reaction mixture leaving the at least one polymerization reactor to form a combined mixture, and sending the combined mixture to a devolatilization zone. The process may include obtaining a HIPS product having a high swell index.

Swell index of hips using additives

Foamable polystyrene compositions with enhanced blowing agent solubility and methods of making such polystyrene compositions by incorporating a polar additive in styrenic polymer or copolymers.

Use of polar additives for enhancing blowing agent solubility in polystyrene

Cellular and multi-cellular polystyrene and polystyrenic foams and methods of forming such foams are disclosed. The foams include an expanded polystyrene formed from expansion of an expandable polystyrene including an adsorbent comprising alumina, wherein the multi-cellular polystyrene exhibits a multi-cellular size distribution. The process for forming a foamed article includes providing a formed styrenic polymer and contacting the formed styrenic polymer with a first blowing agent and an adsorbent comprising alumina to form extrusion polystyrene. The process further includes forming the extrusion styrenic polymer into an expanded styrenic polymer and forming the expanded styrenic polymer into a foamed article.

Foamed articles exhibiting improved thermal properties

Polystyrene blends and methods of making polystyrene blends including combining a styrene monomer and an epoxy-functional comonomer to form a combined mixture, subjecting the combined mixture to polymerization to obtain a polystyrene copolymer and combining the polystyrene copolymer with a biodegradable polymer to obtain a polystyrene blend.

Epoxy functional polystyrene for enhanced PLA miscibility

A process for producing rubber modified polymers having an increased rubber phase volume, including feeding a vinyl aromatic monomer and an elastomer to a polymerization reactor to form a reaction mixture, polymerizing the reaction mixture, combining a copolymer to the polymerized reaction mixture to form a combined mixture, subjecting the combined mixture to further polymerization, and obtaining a rubber modified polymer product from the further polymerization.

Increasing rubber phase volume in rubber-modified polystyrene

A process for producing high impact polystyrene including feeding at least one vinyl aromatic monomer, an elastomer, and a free radical initiator to a first linear flow reactor to form a reaction mixture. Polymerizing the reaction mixture in the first linear flow reactor to a point below the point at which phase inversion occurs to produce a first polymerization mixture and feeding the first polymerization mixture from the first linear flow reactor to a second linear flow reactor. Polymerizing the reaction mixture in the second linear flow reactor to at least a phase inversion point of the mixture to produce a second polymerization mixture and feeding the second polymerization mixture from the second linear flow reactor to at least a third linear flow reactor for post-inversion polymerization of the second polymerization mixture. The product stream can have an ESCR value of at least 10% toughness retained with less than 10 wt % rubber content.

Methods of making high impact polystyrene

A process for producing a high impact polystyrene having a high swell index including feeding at least one vinyl aromatic monomer and at least one elastomer to at least one polymerization reactor to form a reaction mixture, polymerizing the reaction mixture, combining a chain transfer agent to the reaction mixture leaving the at least one polymerization reactor to form a combined mixture, sending the combined mixture to a devolatilization zone and obtaining a HIPS product having a high swell index.

Swell index of HIPS using additives

Growing community of inventors

Deer Park, TX, United States of America

Jose M Sosa