M.a.n. Maschinenfabrik Augsburg-Nurnberg A.g.

Man Technologie Gmbh

Herbert Gutwein

August Muhlratzer

Boy Cornils

Bela Tihanyi

Werner DeWin

Edwin Erben

Siegfried Lassmann

Roland Bertinger

Renate Sanden

A method for the production of soot filters using felt-like or other bats as filter elements, which are made up of loose refractory fibers. In order to bond the fibers together and to anchor then in place, the filter element made up of the fibers is coated by CVD or precipitation from a solution to give an amorphous coating. The coating is also refractory. It bonds the fibers together at their crossovers.

Method and article for the production of porous fiber bats

Method for manufacturing solar absorption layers by electrodeposition of heavy metals, such as Ni and Co, from aqueous citrate solutions. The heavy metal citrates are produced by direct reaction of metal oxides or carbonates with citric acid. The electrolyte concentration is a maximum 5% and has a pH of between 8 and 11. The deposition process takes place at room temperature, bath voltages of 8 to 30 V, and current densities of 3 to 10 A/dm.sup.2. The layers produced by this method are well bonded black layers resistant to temperatures up to 700.degree. C.

Method of manufacturing absorption layers for solar energy systems and

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Pasenbach, Germany

Herbert Gutwein