Patents by Inventor Anna K. DÜRR

Anna K. DÜRR 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).

  • Beta-aluminum oxide ceramics obtainable by extrusion of a mixture that contains a sodium compound
    Patent number: 10421228
    Abstract: Use of a composition comprising A) from 55 to 90% by weight of aluminum oxide, B) from 5 to 35% by weight of a sodium compound which at a pH of 7 at 20° C. has a solubility in water of ?300 g/l and can be converted by thermal means virtually exclusively into sodium oxide as only solid, C) from 0 to 15% by weight of a magnesium compound and/or a lithium compound selected from the group consisting of: magnesium oxide, magnesium carbonate, magnesium nitrate, lithium oxide, lithium carbonate, lithium nitrate and D) from 0 to 30% by weight of zirconium dioxide for producing a shaped ceramic body by extrusion.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: September 24, 2019
    Assignee: BASF SE
    Inventors: Anna K. Dürr, Günther Huber, Christian Eichholz, Katrin Freitag, Stefan Meuer
  • BETA-ALUMINUM OXIDE CERAMICS OBTAINABLE BY EXTRUSION OF A MIXTURE THAT CONTAINS A SODIUM COMPOUND
    Publication number: 20160221242
    Abstract: Use of a composition comprising A) from 55 to 90% by weight of aluminum oxide, B) from 5 to 35% by weight of a sodium compound which at a pH of 7 at 20° C. has a solubility in water of ?300 g/l and can be converted by thermal means virtually exclusively into sodium oxide as only solid, C) from 0 to 15% by weight of a magnesium compound and/or a lithium compound selected from the group consisting of: magnesium oxide, magnesium carbonate, magnesium nitrate, lithium oxide, lithium carbonate, lithium nitrate and D) from 0 to 30% by weight of zirconium dioxide for producing a shaped ceramic body by extrusion.
    Type: Application
    Filed: September 3, 2014
    Publication date: August 4, 2016
    Applicant: BASF SE
    Inventors: Anna K. DÜRR, Günther HUBER, Christian EICHHOLZ, Katrin FREITAG, Stefan MEUER