PROCESS FOR PREPARING HIGHLY POROUS GLASS-CERAMIC MOLDED PARTS

A PROCESS FOR PREPARING HIGHLY POROUS GLASS-CERAMIC MOLDED PARTS The invention relates to a process for preparing highly porous glass-ceramic molded parts having carbon atoms linked to silicon atoms, which comprises reacting a molded part, containing an organopolysiloxane which is solid at room temp...

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Bibliographische Detailangaben
Hauptverfasser:	PACHALY, BERND, ZELLER, NORBERT, FREY, VOLKER
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS LIME, MAGNESIA MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES METALLURGY MINERAL OR SLAG WOOL REFRACTORIES SLAG SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	A PROCESS FOR PREPARING HIGHLY POROUS GLASS-CERAMIC MOLDED PARTS The invention relates to a process for preparing highly porous glass-ceramic molded parts having carbon atoms linked to silicon atoms, which comprises reacting a molded part, containing an organopolysiloxane which is solid at room temperature, and consists of units of the formula , where R is a radical selected from the formulas or and is linked via a single silicon-silicon bond, in a nonoxidizing atmosphere or in vacuo at temperatures ranging from 700 to 1300.degree.C.