Method of producing a cellular ceramic body

Details Method of producing a cellular ceramic body Method of producing a cellular ceramic body

1983-01-27

1984-09-18

Lindsay, Robert

Glass manufacturing

Processes

Self-supporting particle making

65 214, 65 22, 65 3013, 65 3014, 428404, 428406, 501 12, 501 33, 501 39, 501 84, C03B 1910

Patent

active

044721854

ABSTRACT:
There is disclosed a method of producing a cellular ceramic body of high mechanical strength and exhibiting a density less than 15 lbs/ft.sup.3. A crystal-containing gel, prepared from a selected, synthetic, lithium and/or sodium, water-swelling mica, is ion exchanged with a large cation to flocculate the gel and the floc is drained and provided with a gas producing agent. The floc is then molded to desired shape and subjected to gas-producing radiation to cellulate the molded body. The cellulating agent may be retained water, one or more chemical blowing agents, a combustible substance or a vaporizable substance. The floc, in slurry form, may have a thickener added to produce a paste prior to molding. It may also have a plasticizer and/or a binder added as modifiers.

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patent: 4349456 (1982-09-01), Sowman
patent: 4380569 (1983-04-01), Shaw

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