Pactiv Corporation

Ming L Ho

Michael L Bohn

Kevin M O'Malley

William Patchen

Gary D Ennis

Lee D Alexander

David John Claudius

Mineral-filled polymer compositions and methods of forming such polymer compositions into a thermally stable article are provided. Methods of forming a polymeric article include providing a polymer composition comprising a crystallizable polymer, a mineral filler in an amount of more than about 15 wt-% based on the total weight of the polymer composition, and an impact modifier, wherein the polymer composition is at a temperature less than a crystallization temperature of the crystallizable polymer. The methods further include disposing the polymer composition in a mold, forming the polymer composition into an article within the mold, and releasing the article from the mold. The methods can include thermoforming the polymer composition in a mold, or injection molding the polymer composition in a molten form in a mold.

Mineral-filled polymer articles and methods of forming same

Tray

A process for forming and trimming a part comprises providing a continuous web of polymeric material, thermoforming the continuous web of polymeric material into the desired part, providing a cutter arrangement comprising a blade, providing a platen assembly comprising a closed groove that generally corresponds to the outer shape of the blade and a vacuum system, wherein at least one of the cutter arrangement and the platen assembly is moveable with respect to the at least one other assembly, trimming the part of the continuous web of polymeric material from the remainder of the continuous web of polymeric material via the blade, and removing undesirable trim material formed during the trimming of the part via the vacuum system.

Process and apparatus for trimming polymeric parts

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Fairport, NY, United States of America

Ming L Ho