Eastman Chemical Company

Westlake Longview Corporation

Grupo Petrotemex S.a. De C.v.

Gropo Petrotemex, S.a. De C.v.

Grupo Pretrotemex, S.a. De C.v.

Wayne Scott Strasser

Alan George Wonders

Lee R Partin

Marcel De Vreede

Puneet Gupta

Robert Lin

Howard Wood Jenkins, Jr

Stephen Wayne Coe

Andrew Colin Lewis

Kenneth Wayne Moser

Bailey James Salmon

Bert Eugene Allen

Douglas James Landry

Ronald Buford Sheppard

Kenneth Alan Dooley

Thomas Earl Woodruff

Marcel deVreede

Paul Keith Scherrer

Matthew Howard Scott

Mark Dewayne Lorenz

David Lynn Meade

Dwayne Ray Leonard

J Thomas Tidwell

James W Mercer, Jr

Tony Wayne Helton

Subramanian Easwaran Iyer

Jeremy Richard Lizotte

Gary Darrel Boone

William Joseph Burgess

Justin Dean Hearron

Mark Dwayne Lorenz

B James Salmon

James Wilson Mercer

Lee Reynolds Partin

James Thomas Tidwell

Howard Wood Jenkins

A polymer melt candle filter having a support which comprises a hollow cylindrical body defined by a first end, a second end, and a cylinder wall having a first end portion and a second end portion. The first end portion includes a screw thread on its outside surface and optionally a hex fitting on its inside surface for receiving a hex wrench. The second end portion includes a plurality of holes in the cylinder wall. The area of the openings of the holes on the outside surface of the cylinder wall may be larger than the area of the openings of the corresponding holes on the inside surface of the cylinder wall. The shape of the openings of the holes on the outside surface may be non-circular. A polymer melt filter plate assembly which comprises (a) a support plate comprising a plurality of threaded holes; (b) at least one filter which is screwed into at least one of the threaded holes via the screw thread on the outside surface of the first end portion of the filter support; (c) a tie rod with (i) a first end extending through a hole in a cone insert and a cap located at the second end of the filter support, and (ii) a second end extending through a threaded hole in the support plate; and (d) a cross bar which is attached to the second end of the tie rod for holding the support plate inside a shaft of an apparatus for filtering a polymer melt.

Candle filter support and plate assembly for polymer melts

Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process.

Optimized liquid-phase oxidation

Methods and apparatus for coating substrates. A die can be employed for extrusion coating an elongated substrate, where the die defines a coating cavity therein. The die can comprise a die block having a coating supply channel for supplying a coating material to the coating cavity. The die can further comprise a guide plug and a die plate removably coupled to the die block. The guide plug can comprise a substrate inlet having a non-circular lateral cross-section, and the die plate can comprise a substrate outlet also having a non-circular lateral cross-section. A coating system comprising such a die can operate to coat a substrate where the substrate can be pushed at least partially through the die and contacts the coating material therein.

Methods and apparatus for coating substrates

The invention relates to a process and apparatus for preparing an ethylene polymer by free radical polymerization under ultra-high pressure. The polymerization is carried out in an autoclave reactor in the presence of a free radical initiator. The autoclave reactor is characterized by having one or more elongated baffles affixed to the interior reactor wall.

Process and apparatus for polymerizing ethylene under ultra-high pressure

A process and apparatus for gas phase polymerization of olefins in a fluidized bed reactor are disclosed. The process and apparatus employ a vertically oriented fines ejector in order to reduce fouling and reactor downtime.

Process and apparatus for olefin polymerization in a fluidized bed reactor

Growing community of inventors

Kingsport, TN, United States of America

Wayne Scott Strasser