Patents by Inventor Andre Wehmeier

Andre Wehmeier 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).

  • Precipitated silicas with particular pore size distribution
    Publication number: 20070100057
    Abstract: Precipitated silicas useful, for example, as fillers in elastomer mixtures or vulcanizates have a particularly broad pore size distribution of the pores with a pore diameter smaller than that of the maximum of the derivative of the pore volume distribution function, and have simultaneously very low microporosity and high rubber activity.
    Type: Application
    Filed: September 8, 2006
    Publication date: May 3, 2007
    Applicant: DEGUSSA AG
    Inventors: Oleg Stenzel, Hans-Detlef Luginsland, Stefan Uhrlandt, Andre Wehmeier
  • Precipitated silicas with a particular pore size distribution
    Publication number: 20070059232
    Abstract: Precipitated silicas which have a broad pore size distribution of the pores with a pore diameter smaller than that of the maximum of the derivative of the pore volume distribution function are useful, for example, for tires.
    Type: Application
    Filed: September 8, 2006
    Publication date: March 15, 2007
    Applicant: DEGUSSA AG
    Inventors: Oleg Stenzel, Anke Blume, Hans-Detlet Luginsland, Ralf Schmoll, Herbert Thoma, Stefan Uhrlandt, Andre Wehmeier
  • Specially precipitated silicic acids for rubber applications
    Publication number: 20060254463
    Abstract: The present invention relates to precipitated silicas which have extremely low microporosity and high rubber activity, to a process for their preparation, and to their use as filler for rubber mixtures.
    Type: Application
    Filed: January 8, 2004
    Publication date: November 16, 2006
    Applicant: Degussa AG
    Inventors: Hans-Detlef Luginsland, Andre Wehmeier, Oleg Stenzel, Stefan Uhrlandt
  • Highly dispersible silica for using in rubber
    Publication number: 20060165581
    Abstract: The present invention relates to highly disperse precipitated silicas which exhibit an extremely high level of reinforcement of rubber vulcanizates, to a process for their preparation, and to their use as filler for rubber mixtures.
    Type: Application
    Filed: January 8, 2004
    Publication date: July 27, 2006
    Inventors: Oleg Stenzel, Anke Blume, Hans-Detlef Luginsland, Stefan Uhrlandt, Andre Wehmeier
  • Highly dispersible precipitated silica with a high surface area
    Publication number: 20060137575
    Abstract: The present invention relates to a highly dispersible silica which has a high surface area, a process to manufacture the aforesaid silica and its use as a tire filler for utility vehicles, motor cycles and high speed vehicles.
    Type: Application
    Filed: July 24, 2003
    Publication date: June 29, 2006
    Applicant: DEGUSSA AG
    Inventors: Oleg Stenzel, Stefan Uhrlandt, Hans-Detlfef Luginsland, Andre Wehmeier
  • Highly dispersible precititated silica
    Publication number: 20060100344
    Abstract: The present invention relates to a highly disperse precipitated silica which has a high surface area, to a process for preparing it, and to its use as a tire filler for commercial vehicles, motorbikes, and high-speed vehicles.
    Type: Application
    Filed: July 23, 2003
    Publication date: May 11, 2006
    Inventors: Oleg Stenzel, Stefan Uhrlandt, Hans-Detlef Luginsland, Andre Wehmeier
  • High-surface precipitation silicic acids
    Publication number: 20060099129
    Abstract: The present invention relates to a highly dispersible silica which has a high surface area, a process to manufacture the aforesaid silica and its use as a tire filler for utility vehicles, motor cycles and high speed vehicles.
    Type: Application
    Filed: July 25, 2003
    Publication date: May 11, 2006
    Inventors: Oleg Stenzel, Stefan Uhrlandt, Hans-Detlef Luginsland, Andre Wehmeier