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Adhesives from Recovered Polyurethane Waste

SpecialChem / Edward M. Petrie & Edward Petrie – Dec 19, 2012

This article reviews the efforts on utilizing recovered polyurethane scrap in adhesive systems and attempts to provide insight into the opportunities and technical problems that remain. The resuse of polymer waste is a goal of many sustainability initiatives. Much work has been done in this area but most of it has focused on commodity plastics such as those used in packaging. Relatively little effort has been devoted to applications for utilizing waste in adhesive formulations. However, there have been some developments in the area which could be forerunners of a new generation of “greener” adhesives. Scrap polymeric materials, including those left over from consumption as well as those left over from production but not useful for a variety of reasons, comprise a vast range of reclaimable materials for potential use in other products. In the adhesive area, this type of activity has focused mainly on the reuse of the following polymer waste sources: polyurethane, polyester, and cellulosic.

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