| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing a honeycomb structure which does not cause waving of the division wall, especially near the outer peripheral wall, on molding. <P>SOLUTION: The method of manufacturing a ceramic molding by extrusion comprises extruding, into a honeycomb molding, a ceramic plastic material comprising 100 pts.mass of a ceramic material added with 0.1-10 pts.mass of a polyoxyethylene polyoxypropylene derivative of formula (1) (wherein, R<SB>x</SB>is an x-hydric alcohol residue; for x=1, R is an alkoxyl group consisting of the residue of a monohydric alcohol of formula C<SB>p</SB>H<SB>2p+1</SB>O- and p is an integer of 4 to 6; for x=2-6, R is the residue of a polyhydric alcohol of formula C<SB>q</SB>H<SB>(q+2)</SB>O<SB>q</SB>, and q is an integer of 2 to 6; m and n are each 3-10,000). <P>COPYRIGHT: (C)2008,JPO&INPIT |
