Method of producing porous material having open pores
AssigneeToto Ltd.
InventorsNoboru Kishima, Yoshio Ueda, Takeshi Sato
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Abstract
Disclosed is a method of producing a porous material having open pores, comprising the steps of preparing a slurry from a mixture comprising a bisphenol-type epoxy resin, a specific mixture amide compound as a hardener, a filler and water, casting the slurry in a water-impermeable mold, hardening the slurry while it contains the water and dehydrating the hardened body.
Claims8
A method of producing a porous material having open pores, comprising the steps of preparing a slurry from a mixture comprising a bisphenol-type epoxy resin, a hardener, a filler and water, casting said slurry in a water-impermeable mold, hardening said slurry while it contains the water and dehydrating the hardened body, wherein the improvement comprises that said hardener is either (a) a mixture of (i) an amide compound which is obtained through a reaction between a monomeric fatty acid and an ethyleneamine expressed by the formula of H.sub.2 N--(CH.sub.2 --CH.sub.2 --NH).sub.n --H where "n" be 3 to 5, and (ii) a polymeric fatty acid polyamide obtained through a reaction of a polymeric fatty acid and said ethyleneamine, or (b) a reaction mixture obtained by mixing reaction of said monomeric fatty acid, said polymeric fatty acid and said ethyleneamine.
Dependencies are inferred from the claim text.