Process for manufacturing a ceramic foam body

Details Process for manufacturing a ceramic foam body Process for manufacturing a ceramic foam body

1990-07-18

1991-11-05

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Of inorganic materials

264 59, B29H 720

Patent

active

050630075

ABSTRACT:
The process for manufacturing an open pore foam body with three dimensional ceramic network, in particular as a filter for the treatment of hot gases or as a catalyst substrate, has as its starting material a block of open pore plastic foam. This is impregnated at least once with a ceramic suspension, freed of excess ceramic suspension and heated to a temperature below the melting point of the plastic, then finally burnt off at a temperature at which the ceramic sinters together. At least one plastic foam layer is impregnated, assembled into a plastic foam block with flow channels between two layers and sintered to form a Z-flow filter.

REFERENCES:
patent: 2506244 (1950-05-01), Stopka
patent: 4364760 (1982-12-01), Higuchi et al.
patent: 4396565 (1983-08-01), Tomita et al.
patent: 4464185 (1984-08-01), Tomita et al.
patent: 4652286 (1987-03-01), Kusuda et al.

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