Process for the silylation of inorganic oxides

Silylation of very finely-divided inorganic oxides (I) comprises treating (I) with a very fine aerosol of liquid silylating agent(s) which is hardly volatile in the entire process temp. range. Also claimed is highly non-polar pyrogenic SiO2 (II) prepd. in this way.

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Bibliographische Detailangaben
Hauptverfasser:	HERBERT BARTHEL, MARIO HEINEMANN, AUGUST ALTENBUCHNER, FRANZ HERMANN
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES CANDLES CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMICAL PAINT OR INK REMOVERS CHEMISTRY CINEMATOGRAPHY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOUNDS THEREOF CORRECTING FLUIDS DETERGENT COMPOSITIONS DETERGENTS DYES ELECTROGRAPHY ELECTROPHOTOGRAPHY FATTY ACIDS THEREFROM FILLING PASTES HOLOGRAPHY INKS INORGANIC CHEMISTRY MAGNETOGRAPHY MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-METALLIC ELEMENTS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS PHOTOGRAPHY PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS POLISHES PREPARATION OF CARBON BLACK RECOVERY OF GLYCEROL RESIN SOAPS SEPARATION SOAP OR SOAP-MAKING THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES USE OF MATERIALS THEREFOR USE OF SINGLE SUBSTANCES AS DETERGENTS WOODSTAINS
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Beschreibung
Zusammenfassung:	Silylation of very finely-divided inorganic oxides (I) comprises treating (I) with a very fine aerosol of liquid silylating agent(s) which is hardly volatile in the entire process temp. range. Also claimed is highly non-polar pyrogenic SiO2 (II) prepd. in this way.