Method for producing hydrophobic, heat-insulating mouldings

Process for hydrophobizing a microporous thermal insulation molding comprising hydrophilic silica, in which the molding is treated with at least one organosilane and in which one or more organosilanes which are gaseous under the reaction conditions are introduced into a chamber containing the microp...

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Bibliographische Detailangaben
Hauptverfasser: KRATEL GUENTER, MENZEL FRANK, BORCHERT GERD
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Process for hydrophobizing a microporous thermal insulation molding comprising hydrophilic silica, in which the molding is treated with at least one organosilane and in which one or more organosilanes which are gaseous under the reaction conditions are introduced into a chamber containing the microporous thermal insulation molding comprising hydrophilic silica until the pressure difference p is 20 mbar.