The Dow Chemical Company

Dowelanco

Brad Gougeon

Bruce S Marks

James J Kubiak

Jeff M Alcott

Brian D Olson

Beth A Colbert

A polymer foam sheet having a thickness of at least 0.3 cm, an average cell size of at least 0.1 mm, and at least one pyrethrum compound dispersed in the polymer matrix, wherein the total amount of pyrethrum compounds in the sheet, based on the weight of the foam solids therein, is from 1 part per million (ppm) to 20,000 ppm.

Insecticide-containing foam sheet and process for the preparation thereof

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

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Blacklick, OH, United States of America

Brad Gougeon