Fina Technology, Inc.

Fina Technologies, Inc.

Tina Technology, Inc.

David W Knoeppel

Jose M Sosa

Wei Wang

Steven Daniel Gray

Tim J Coffy

Lei Zhang

Kayo Vizzini

Henry Enriquez

Carlos DeAnda

James R Butler

David J Rauscher

Carlos R Corleto

Jon Tippet

Graciela Morales

Camille Grossetete

Shane Steagall

Fengkui Li

Vincent Henri Barre

Likuo Sun

Gerhard Guenther

Cyril Chevillard

Ruby Curtis

Brian Cole

Giovanni Trimino

Melissa Greenberg

Madison Bluhm

Stan Biesert

Son Nguyen

Danielle Childress

Carlos Corletto

Ricky McCormick

Kenneth Paul Blackmon

John Gaustad

Ying Wang

Wyman T Stephens

Jayna Brown

Carlos Deanda

A polystyrene (PS) composition for making an extruded foam, the PS composition comprising: a dried PS/alumina compound comprising a PS and an alumina additive, wherein the dried PS/alumina compound has a moisture content, measured by Coulometer, that is less than or equal to about 0.05 weight percent (wt %); and a blowing agent.

Pre-dried polystyrene/alumina compound for foam extrusion

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

High impact polystyrene may be formed with increased swell index and reduced or eliminated discoloration. A process of forming high impact polystyrene may include providing a polymerization system including a polymerization reactor and a devolatilizer. High impact polystyrene may be formed in the polymerization reactor, and sent to the devolatilizer. A polar antioxidant having a hindered phenol structure and an aliphatic amine group, and with a phosphite antioxidant may be added to the polymerization system. In another process, a chemical retarder and a fluorescent whitening agent may be added to the polymerization system. In another process, a chemical retarder that inhibits free radical rubber crosslinking may be added to the polymerization system.

Alternative methods to control crosslinking in high impact polystyrene

A process may include contacting ethylene monomer with Ziegler-Natta catalyst to form polyethylene. The Ziegler-Natta catalyst may be formed by contacting an alkyl magnesium compound with an alcohol and a metal reagent to form a blend, and contacting the blend with a first agent to form a solution of reaction product 'A'. The solution of reaction product 'A' may be contacted with a second agent to form a solid reaction product &#x201c;B&#x201d;, and the solid reaction product &#x201c;B&#x201d; may be contacted with a third agent to form a solid reaction product &#x201c;C&#x201d;. The solid reaction product &#x201c;C&#x201d; may be contacted with a fourth agent to form a solid reaction product &#x201c;D&#x201d;, and the solid reaction product &#x201c;D&#x201d; may be contacted with a fifth agent to form a catalyst component.

Ziegler-natta catalysts doped with non-Group IV metal chlorides

Ziegler-Natta catalysts doped with non-group IV metal chlorides

A method of making a foamable polystyrene composition includes combining a styrenic monomer and a co-monomer containing a polar functional group to obtain a mixture, subjecting the mixture to polymerization to obtain a styrenic co-polymer, and combining the styrenic co-polymer with a blowing agent in a foaming process to obtain foamed articles.

Polar polystyrene copolymers for enhanced foaming

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

The method includes providing a high impact polystyrene (HIPS) reaction system, wherein the HIPS reaction system has a devolitalizer downstream of a reactor and injecting a retarding agent into the HIPS reaction system prior to the devolitalizer.

Crosslinking control in high impact polystyrene manufacturing process

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

Processes of forming catalyst systems, catalyst systems and polymers formed therefrom are described herein. The processes generally include providing a first compound including a magnesium dialkoxide, contacting the first compound with a second compound to form a solution of reaction product 'A', wherein the second compound is generally represented by the formula:Ti(OR);wherein Ris selected from Cto Clinear to branched alkyls, contacting the solution of reaction product 'A' with a first metal halide to form a solid reaction product &#x201c;B&#x201d;, contacting solid reaction product &#x201c;B&#x201d; with a second metal halide, to form reaction product &#x201c;C&#x201d; and contacting reaction product &#x201c;C&#x201d; with reducing agent to form a catalyst component.

Ziegler-Natta catalyst systems and polymers formed therefrom

Ziegler-Natta catalysts, processes of forming the same and using the same are described herein. The process generally includes contacting a metal component with a magnesium dihalide support material to form a Ziegler-Natta catalyst precursor; contacting the support material with a dopant including a non-Group IV metal halide to form a doped catalyst precursor; and activating the doped catalyst precursor by contact with an organoaluminum compound to form a Ziegler-Natta catalyst.

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League City, TX, United States of America

David W Knoeppel