abstract |
PROBLEM TO BE SOLVED: To provide a polyester elastomer foam having excellent cushioning properties and excellent processability, and a sealing material for electric / electronic devices composed of the foam. A polyester elastomer foam of the present invention is a polyester elastomer foam having a density of 0.03 to 0.15 g / cm 3 , and includes a polyester elastomer having a melting point of 190 to 220 ° C. It is formed by foaming a polyester elastomer composition having a melt tension of 10 to 25 cN measured at a temperature of 10 ± 2 ° C. from the melting point of the polyester elastomer. The polyester elastomer foam is preferably formed by foaming a polyester elastomer composition containing a polyester elastomer having a melting point of 190 to 220 ° C. and an epoxy crosslinking agent. [Selection figure] None |