RESIN FOAM AND FOAM SEALING MATERIAL

摘要

The purpose of the present invention is to provide a resin foam which exhibits excellent thickness recovery performance (speed) after compressive deformation, is flexible even in low-temperature environments, and balances instantaneous recovery properties with shock absorption properties; and a foam sealing material. The resin foam has a thickness recovery rate of 50% or more at 23°C as defined below, and has a repulsive stress of less than 10.0 N/cm2 when at 50% compression at -10°C as defined below. Thickness recovery rate: proportion in relation to initial thickness of resin-foam thickness measured after compressing resin foam for one minute in thickness direction thereof to 20% of initial thickness, releasing state of compression, and allowing one minute to elapse since release of state of compression. Repulsive stress when at 50% compression: opposing repulsive load when compressing resin foam in thickness direction thereof to 50% of initial thickness.