Patent ID: 6866803

Claim:
A method of manufacturing an open porous body for use in a slip casting mold for slip casting a powder material, comprising the steps of: stirring a mixture of an epoxy compound having at least one epoxy ring in one molecule, a hardener for reacting with the epoxy compound to harden the epoxy compound, a filler for developing self water absorption capability and mold releasability, and water into an O/W-type emulsion slurry; casting the emulsion slurry into a mold impermeable to water; and hardening the emulsion slurry in the mold while containing the water, wherein said filler has an average particle diameter ranging 1 μm to 20 μm, and said hardener is primarily composed of 1-5 wt % of a product produced by a reaction between monomer fatty acid and chain-like fatty primary polyamine and 99-95 wt % of a product produced by a reaction between polymer fatty acid and chain-like fatty primary polyamine.