Evonik Degussa Gmbh

E.g.o. Elektro-geraetebau Gmbh

Guenter Kratel

Eugen Wilde

Frank Menzel

Erich John

Bernhard Mikschl

Gerd Borchert

Horst Pfob

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 &#x394;p is &#x2267;20 mbar.

Method for producing hydrophobic, heat-insulating mouldings

A shaped thermal insulation body comprises inorganic material. The shaped body has the following, weight-related composition: approx. 20 wt. % inorganic filling material: approx. 40 wt. % opacifier; approx. 10 wt. % fibrous material; and approx. 15 wt. % hardening agent as well as approx. 15 wt. % water. The shaped body only contains a small amount of fumed silica with a comparatively small BET surface. Water glass is excluded during its manufacture. It can be used as a spacer for radiant heaters.

Shaped thermal insulation body

Growing community of inventors

Durach, Germany

Guenter Kratel