Patents by Inventor Klaus Bunthoff

Klaus Bunthoff 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).

  • Process for preparing alkanesulfonic acids from sulfur trioxide and an alkane
    Patent number: 9902689
    Abstract: A process for preparing alkanesulfonic acids from sulfur trioxide and an alkane, wherein sulfur trioxide, the alkane and dialkylsulfonoyi peroxide (DASP) react as components, characterized in that the following steps are performed: a) sulfur trioxide is charged in a high-pressure reactor in a condensed phase; b) a temperature of at least 25° C. is set; c) the gaseous alkane is introduced to the high-pressure reactor until a pressure of at least 10 bar is reached; d) dialkylsulfonoyi peroxide (DASP) is added; and e) after a duration of at least 5 hours, the produced alkanesulfonic acid is withdrawn.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: February 27, 2018
    Assignee: Grillo Chemie GMBH
    Inventors: Timo Ott, Ingo Biertümpel, Klaus Bunthoff, Alan Richards
  • PROCESS FOR PREPARING ALKANESULFONIC ACIDS FROM SULFUR TRIOXIDE AND AN ALKANE
    Publication number: 20160289176
    Abstract: A process for preparing alkanesulfonic acids from sulfur trioxide and an alkane, wherein sulfur trioxide, the alkane and dialkylsulfonoyi peroxide (DASP) react as components, characterized in that the following steps are performed: a) sulfur trioxide is charged in a high-pressure reactor in a condensed phase; b) a temperature of at least 25° C. is set; c) the gaseous alkane is introduced to the high-pressure reactor until a pressure of at least 10 bar is reached; d) dialkylsulfonoyi peroxide (DASP) is added; and e) after a duration of at least 5 hours, the produced alkanesulfonic acid is withdrawn.
    Type: Application
    Filed: November 13, 2014
    Publication date: October 6, 2016
    Applicant: Grillo Chemie GMBH
    Inventors: Timo Ott, Ingo Biertümpel, Klaus Bunthoff, Alan Richards
  • Copolymers of unsaturated carboxylic acids and use thereof
    Patent number: 4963629
    Abstract: Copolymers of unsaturated carboxylic acids with alkaline solutions of monosaccharides or disaccharides capable of forming enolates provide polycarboxylates which are excellently suitable as sequestrants, complexing agents and co-builders in washing and cleaning agents.
    Type: Grant
    Filed: August 10, 1989
    Date of Patent: October 16, 1990
    Assignee: Grillo-Werke AG
    Inventors: Klaus Driemel, Klaus Bunthoff, Helmut Nies, Dieter Rohe