The Dow Chemical Company

Dowelanco

Dow Deutschland Inc.

Bruce S Marks

Georges Eschenlauer

Bharat I Chaudhary

Brad Gougeon

Beth A Colbert

Brian D Olson

Disclosed is a rigid polymer foam board suitable for use in a foundation insulation system. The foam board has a face defining a plurality of grooves therein which traverse in a crossing, diagonal configuration. The groove configuration facilitates the application of insecticides/termiticides in foundation insulation systems employing rigid foam boards on the exterior of the foundation.

Rigid foam board and foundation insulation system and method for

An uncrosslinked, closed cell, low density ethylenic polymer foam having a density of less than 150 kg/m.sup.3 is prepared from, for example, uncrosslinked low density polyethylene using inorganic blowing agents, such as carbon dioxide, argon, or mixtures thereof. A process for preparing such uncrosslinked, closed cell, low density ethylenic polymer foam comprising extruding a ethylenic polymer of suitable melt tension using a 100 percent inorganic blowing agent, such as carbon dioxide, argon, or mixtures thereof, and the foams produced with this process are also disclosed.

Closed cell, low density ethylenic polymer foam produced with inorganic

Growing community of inventors

Westerville, OH, United States of America

Bruce S Marks