North American Pipe Corporation

Dow Global Technolgoies LLC

Rohm and Haas Company

Alexander Gorshenin

Bharat Indu Chaudhary

Amy L Waxman

A pipe structure has an outer layer of a skin material with a first thickness and which defines an outside diameter of the pipe structure. The pipe structure has an inner layer of a skin material with a second thickness and which defines an inside diameter of the pipe structure. The pipe structure has a core layer of a foam material disposed between the inner and outer layers and having a third thickness. The inner, outer, and core layers are formed such that the pipe structure has a tube shape in cross-section. The first, second, and third thicknesses, respectively, combine to define a wall thickness of the pipe structure. The pipe structure has improved cold impact performance according to the ratio of the thicknesses of the inner and outer layers relative to the core layer.

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Philadelphia, PA, United States of America

Alexander Gorshenin