Patents by Inventor Klaus-P. Bauer

Klaus-P. Bauer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Molded articles based on pyrogenically produced mixed-oxide systems of silicon dioxide and aluminum oxide, a method for manufacturing them and their use
    Patent number: 5002918
    Abstract: A molded; i.e. pressed, article based on a pyrogenically produced system of mixed oxides of silicon dioxide and aluminum oxide and having the following physical-chemical features:______________________________________ pellet diameters 2 to 15 mm BET surface area according to 90 to 200 m.sup.2 /g DIN 66131 pore volume 0.6 to 1.3 ml/g pore size distribution no pores with <5 nm diameters, at least 75% of the pores in the range of 5 to 40 nm crushing strength 30 to 120 N composition >75% by weight of SiO.sub.2, remainder Al.sub.2 O.sub.3 ______________________________________These molded articles are manufactured by homogenizing a pyrogenically produced system of mixed oxides of silicon dioxide and aluminum oxide with graphite and/or kaolin, urea, sugar, starch, glaze frit powder and/or microcrystalline wax while water is being added, by drying the mixture at a temperature between 80.degree. and 120.degree. C.
    Type: Grant
    Filed: February 23, 1990
    Date of Patent: March 26, 1991
    Assignee: Degussa Aktiengesellschaft
    Inventors: Klaus Deller, Rainhard Klingel, Helmfried Krause, Klaus-P. Bauer