ENERGY ABSORBING MEMBER

摘要

An improved energy absorbing member comprising, an thermoplastic cellular polymer in contact with a structural element such as a metal guard rail or automotive door, wherein the cellular polymer has an average cell size of at least about 0.75 mm and at least one of CE/CT, CV/CT and CH/CT is about 0.25 to about 0.4 said one of CE/CT, Cv/Ct and CH/CT having a compressive efficiency of at least 70% at a 60% strain, CE, Cv and CH being the compressive strength of the cellular polymer in each of three orthogonal directions E, V and H where one of these directions is the direction of maximum compressive strength in the foam and Cx equals the sum of CE, Cv and CH.