PRODUCTION METHOD FOR POROUS BODY, THREE-DIMENSIONAL MESH-LIKE POROUS BODY, LIQUID FILTER, AND LIQUID-ABSORBING SPONGE

摘要

Provided is a production method for a three-dimensional mesh-like porous body that comprises a thermoplastic elastomer, said production method including a step in which: a composition comprising the thermoplastic elastomer, inorganic salt particles that are soluble in water, and a polyhydric alcohol that is soluble in water as the main raw materials thereof is kneaded, the kneaded product is degassed and molded, the molded product obtained thereby is cured, the inorganic salt particles and the polyhydric alcohol are subsequently extracted using water, and the result is dried. The blending amount of the polyhydric alcohol in the composition is 55 mass% or more with respect to the maximum blending amount of the polyhydric alcohol that is uniformly mixed with the thermoplastic elastomer when thermally fusing the thermoplastic elastomer.