Chevron Phillips Chemical Company LP

Silgan Holdings, Inc.

Phillips Petroleum Company

Lee A Carvell

Mark Wanderlich

Michael A Smith

James Jalutkewicz

Charles E Rees

Susan L Banovic

Mark D Hanes

The present techniques provide multi-layer plastic structures and methods for making such. The multi-layer plastic structures include an inner surface made from a polyolefin resin, and resistant to environmental stress cracking, and an outer surface that includes a styrenic copolymer. The outer surface has a kinetic coefficient of friction with itself of 0.42 and a static coefficient of friction with itself of 0.44.

System and method for creating high gloss plastic items via the use of styrenic copolymers as a coextruded layer

A process for reducing the haze of extrusions of clear polymeric blends containing styrene-butadiene copolymer and a polymer immiscible therewith. An assembly of extrusion layers in which a layer of clear polymeric blends containing styrene/butadiene copolymer and a polymer immiscible therewith is overlayered with layers of clear material that provides a smooth extruded surface.

Process for minimizing haze of extruded clear blends containing styrene/butadiene polymer and product thereof

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Bartlesville, OK, United States of America

Lee A Carvell