Foamable composition

摘要

The foamable composition according to the present invention comprises a copolymer of ethylene, an α-olefin and a non-conjugated diene, a blowing agent, a crosslinking agent, a catalyst and a reaction suppressor, wherein in the foamable composition, the storage elastic modulus at 23° C. as measured by a viscoelasticity measuring apparatus is 2×104 Pa or lower, and the storage elastic modulus after the foamable composition is held at 115° C. for 200 seconds is 5×104 Pa or higher; thereby, a foam body having a low expansion ratio, a low compression strength and a high cushioning property can be produced.

主权项

1. A foamable composition, comprising: a copolymer of ethylene, an α-olefin and a non-conjugated diene; a blowing agent; a crosslinking agent; a catalyst; and a reaction suppressor,
wherein the foamable composition has a storage elastic modulus at 23° C. as measured by a viscoelasticity measuring apparatus of 2×104 Pa or lower, and a storage elastic modulus after the foamable composition is held at 115° C. for 200 seconds of 5×104 Pa or higher, wherein the foamable composition comprises an organic solvent being liquid at 23° C. as the blowing agent, and wherein the blowing agent is an organic solvent having a relative evaporation rate of 0.5 to 3.7 in the case where the evaporation rate of n-butyl acetate at 25° C. is taken to be 1.0.