PYROGENICALLY PRODUCED ALUMINIUM OXIDE

Pyrogenically produced aluminium oxide, in which the BET specific surface area is greater than 115 m2/g and the Sears index is over 8 ml/2g and the dibutyl phthalate absorption as a powder measured with a 16 g weighed portion is not measurable, is produced by means of flame oxidation or preferably f...

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Bibliographische Detailangaben
Hauptverfasser:	SCHARFE, THOMAS, HAMM, VOLKER, MANGOLD, HELMUT, HENNIG, THOMAS, PLAMBECK-FISCHER, PEER
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVES CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COLOUR PRINTING COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS DYES INORGANIC CHEMISTRY LINING MACHINES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL POLISHES PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES STAMPS THEIR RELEVANT APPARATUS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	Pyrogenically produced aluminium oxide, in which the BET specific surface area is greater than 115 m2/g and the Sears index is over 8 ml/2g and the dibutyl phthalate absorption as a powder measured with a 16 g weighed portion is not measurable, is produced by means of flame oxidation or preferably flame hydrolysis, whereby a vaporisable aluminium compound is used as starting material. The aluminium oxide can be used as an ink-absorbing substance in inkjet media and also as a filler, as a substrate, as a catalytically active substance, as a starting material for the production of dispersions, as a polishing material (CMP applications), as a ceramic raw material, in the electronics industry, in the cosmetics industry, as an additive in the silicone and rubber industry, to adjust the rheology of liquid systems, as a heat stabiliser, in the paint industry.