Fort James Corporation

Brigitte K Weigert

Mark B Littlejohn

Cristian M Neculescu

Anthony J Swiontek

Donald C McCarthy

Erland R Sandstrom

Michael G Thomas

Michael Alan Freek

Margaret P Neer

An injection blow-molded disposable tumbler is formed from a polymeric material and includes a fortified upper rim having a thickness greater than the adjacent sidewall. The tumbler may be formed of a variety of resinous materials and exhibits improved toughness and crush resistance as well as aesthetic qualities particulary desired by consumers.

Injection blow-molded disposable tumbler and method of making same

An injection blow-molded disposable tumbler is formed from a polymeric material and includes a fortified upper rim having a thickness greater than the adjacent sidewall. The tumbler may be formed of a variety of resinous materials and exhibits improved toughness and crush resistance as well as aesthetic qualities particularly desired by consumers. In a particularly preferred embodiment, thick-walled polycarbonate tumblers are prepared from hydrolysis-stabilized polycarbonate compositions while minimizing molded-in stress. In still further embodiments, nanocomposites compositions are used to form the containers of the invention.

A three-compartment, disposable food serving plate includes three ribs in an asymmetric array angularly joined to the bottom and sidewall of the plate. The plate preferably includes a four radius, smooth profile from the bottom to the outer rim and is formed from mineral-filled polyolefin sheet. Mica-filled polypropylene is particularly preferred.

Compartmented disposable plate with asymmetric rib geometry

Flange pattern for a disposable food serving plate

Flange pattern for a disposable food serving bowl

Three compartment disposable food serving plate with asymmetric rib

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Appleton, WI, United States of America

Brigitte K Weigert