POLYURETHANE POROUS PRODUCT AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To obtain a high strength polyurethane porous product without using a solvent and a drying machine, and a method for efficiently manufacturing the same. SOLUTION: The high strength polyurethane porous product can be manufactured by subjecting component A of an isocyanate group-containing urethane prepolymer which is semisolid or solid at normal temperatures and has been melted by heating at 60 deg.C-250 deg.C and component B of a compound capable of reacting with an isocyanate group and/or a urethane curing catalyst to high- speed agitation mixing with the use of a mixing head and, by only cooling a foamed product having been mechanically foamed creamily to room temperature with or without introducing a gas thereinto and/or pressing it at room temperature.