Patents by Inventor Markus Ruf

Markus Ruf 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).

  • METHOD FOR PRODUCING HIGH-PURITY SIO2 FROM SILICATE SOLUTIONS
    Publication number: 20110244238
    Abstract: The invention relates to a novel method for producing high-purity SiO2 from silicate solutions, a novel high-purity SiO2 with a specific impurity profile and use thereof.
    Type: Application
    Filed: September 28, 2009
    Publication date: October 6, 2011
    Inventors: Christian Panz, Markus Ruf, Guido Titz, Florian Paulat, Hartwig Rauleder, Sven Müller, Jürgen Behnisch, Jens Peltzer
  • METHOD FOR PRODUCING HIGH-PURITY SIO2 FROM SILICATE SOLUTIONS
    Publication number: 20110236288
    Abstract: The invention relates to a novel method for producing high-purity SiO2 from silicate solutions, a novel high-purity SiO2 having a specific impurity spectrum and use thereof.
    Type: Application
    Filed: September 28, 2009
    Publication date: September 29, 2011
    Inventors: Christian Panz, Markus Ruf, Guido Titz, Florian Paulat, Hartwig Rauleder, Sven Müller, Jürgen Behnish, Jens Peltzer
  • STABLE AQUEOUS DISPERSIONS OF PRECIPITATED SILICA
    Publication number: 20110179970
    Abstract: The invention relates to stabilized dispersions of precipitated silicon dioxide, to a process for production thereof and to the use thereof, especially for production of paper coatings for glossy photo paper for inkjet printing.
    Type: Application
    Filed: January 21, 2011
    Publication date: July 28, 2011
    Inventors: Florian Zschunke, Burkhard Standke, Stefan Scharfe, Christoph Batz-Sohn, Heinz Lach, Andrea Heuschen, Jürgen Behnisch, Markus Ruf, Günter Stein, Tobias Banert
  • Precipitated silicas having special surface properties
    Patent number: 7767180
    Abstract: Precipitated silicas having an SiOHisolated absorbance ratio of greater than or equal to 1, may be used as reinforcers and thickeners for sealants.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: August 3, 2010
    Assignee: Degussa GmbH
    Inventors: Christian Panz, Helga Obladen, Rene Allerdisse, Karl Meier, Markus Ruf, Michael Kempf, Mario Scholz, Dieter Kuhn
  • PRECIPITATED SILICAS FOR STORAGE-STABLE RTV-1 SILICONE RUBBER FORMULATIONS WITHOUT STABILIZER
    Publication number: 20090137732
    Abstract: A precipitated silica having an SiOHisolated absorbance ratio of greater than or equal to 1.5, a silanol group density of 1 to 3.0 SiOH/nm2, a modified tapped density of 1 to 50 g/l, and a pH of 3-5, when measured as a aqueous suspension of 5.00 g of the precipitated silica in 100 ml. of deionized water allows preparation of storage-stable RTV-1 silicone rubber formulations without stabilizer. A process for preparing the precipitated silica and its use in thickening sealants is provided.
    Type: Application
    Filed: October 31, 2008
    Publication date: May 28, 2009
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Christian Panz, Helga Obladen, Karl Meier, Markus Ruf, Rene Allerdisse, Dieter Kuhn, Aziz El Moussaoui, Mario Scholz, Michael Kempf
  • HYDROPHILIC SILICA FOR SEALANTS
    Publication number: 20070299203
    Abstract: Hydrophilic precipitated silicas which combine a particularly low initial moisture content with low moisture absorption over time, a low tapped density and a low silanol group density, have the following physicochemical parameters: equilibrium moisture content (at 70% relative humidity/20° C.) of 0.5%-5.0% by weight, based on the weight of the hydrophilic precipitated silica, BET surface area of 50-250 m2/g, CTAB surface area of 50-250 m2/g, and DBP (anhydrous) of 200-350 g/100 g.
    Type: Application
    Filed: May 29, 2007
    Publication date: December 27, 2007
    Applicant: DEGUSSA GmbH
    Inventors: Christian Panz, Helga Obladen, Rene Allerdisse, Karl Meier, Markus Ruf, Michael Kempf, Mario Scholz, Dieter Kuhn
  • PRECIPITATED SILICAS HAVING SPECIAL SURFACE PROPERTIES
    Publication number: 20070286788
    Abstract: Precipitated silicas having an SiOHisolated absorbance ratio of greater than or equal to 1, may be used as reinforcers and thickeners for sealants.
    Type: Application
    Filed: May 29, 2007
    Publication date: December 13, 2007
    Applicant: DEGUSSA GmbH
    Inventors: Christian PANZ, Helga OBLADEN, Rene ALLERDISSE, Karl MEIER, Markus RUF, Michael KEMPF, Mario SCHOLZ, Dieter KUHN