ELASTIC BODY WITH CONTINUOUS PORES, PROCESS FOR PRODUCING THE SAME, AND WATER-ABSORBENT ROLLER AND SWAB

摘要

PROBLEM TO BE SOLVED: To provide an elastic body with continuous pores that is formed of a polyurethane and can instantly absorb water, to provide a production process suitable for the elastic body with continuous pores and to provide a water-absorbent roller and a water-absorbent swab produced using the elastic body with continuous pores. SOLUTION: The elastic body with continuous pores is formed of a polyurethane; has a pore structure of a three-dimensional network constituted of skeletons of the polyurethane wherein the skeleton has an average thickness of 20μm or less and 80% or more of the skeleton has a thickness in a range of 2-20μm; has a bulk density of 0.2-0.4 g/cm3; and contains a surfactant having an HLB value of 8 or more. The process for producing the elastic body with continuous pores comprises the water extraction step of extracting a pore-generating agent from a molded product comprising the pore generating agent with water. COPYRIGHT: (C)2006,JPO&NCIPI