Suddeutsche Kalkstickstoff-werke Aktiengesellschaft

Suddeutsche Kalkstickstoff-werke

Gmundner Zementwerke Hans Hatschek Aktiengesellschaft

Walter Lukas

Alois Aignesberger

Ekkehard Weinberg

Wolfgang Gerger

Adolf Kainzner

The invention relates to ceramic fibers and wools formed from silicate-containing melts of combustion residues of fossile fuels and to a process for the production of said fibers and wools. The new fibers and wools are characterized in that they are spun from melts heated to temperatures of 700.degree. to 1650.degree. C., in particular from 1000.degree. to 1450.degree. C., and consisting of untreated fly ash or of a mixture of the components a+b or a+c or a+b+c. the components a, b, c being the following:

Ceramic fibers and wools and a process for their production

The invention provides inorganic fibers based on calcium sulfate dihydrate or calcium sulfate aluminate hydrate (or their dehydration products), wherein the ratio of average length to diameter of the fibers is more than 100:1 and the length of the fibers is at least 0.2 mm; preferably the ratio of average length to diameter is 300-800:1, and the length is 0.5-6 mm.

Inorganic fibers

Growing community of inventors

Innsbruck, Austria

Walter Lukas