Patents by Inventor Peter-Christian Rainer

Peter-Christian Rainer 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).

  • Surface-treated calcium carbonate and paste-like resin composition containing same
    Patent number: 8741995
    Abstract: A calcium carbonate having a surface treated with a surface treating agent containing a sodium salt or a potassium salt of a fatty acid, the surface treating agent containing a sodium salt or a potassium salt of palmitic acid in an amount of PW in terms of acid, the surface treating agent containing a sodium salt or a potassium salt of stearic acid in an amount of SW in terms of acid, a total amount of PW and SW being PW+SW?90, a ratio of PW to SW being 0.30?PW/SW?1.1, the surface-treated calcium carbonate having a BET specific surface area of SA2 of 15?SA2?48, and the sodium salt or the potassium salt of the fatty acid being used for the treatment in an amount of FA and a ratio (FA/SA2) being 0.095?FA/SA2?0.135.
    Type: Grant
    Filed: February 15, 2010
    Date of Patent: June 3, 2014
    Assignee: Shiraishi Kogyo Kaisha, Ltd.
    Inventors: Shinjiro Fujiwara, Yoshisada Kayano, Peter-Christian Rainer, Gernot Primosch
  • SURFACE-TREATED CALCIUM CARBONATE AND PASTE-LIKE RESIN COMPOSITION CONTAINING SAME
    Publication number: 20120309877
    Abstract: A calcium carbonate having a surface treated with a surface treating agent containing a sodium salt or a potassium salt of a fatty acid, the surface treating agent containing a sodium salt or a potassium salt of palmitic acid in an amount of PW in terms of acid, the surface treating agent containing a sodium salt or a potassium salt of stearic acid in an amount of SW in terms of acid, a total amount of PW and SW being PW+SW?90, a ratio of PW to SW being 0.30?PW/SW?1.1, the surface-treated calcium carbonate having a BET specific surface area of SA2 of 15?SA2?48, and the sodium salt or the potassium salt of the fatty acid being used for the treatment in an amount of FA and a ratio (FA/SA2) being 0.095?FA/SA2?0.135.
    Type: Application
    Filed: February 15, 2010
    Publication date: December 6, 2012
    Applicant: SHIRAISHI KOGYO KAISHA, LTD.
    Inventors: Shinjiro Fujiwara, Yoshisada Kayano, Peter-Christian Rainer, Gernot Primosch