Patents by Inventor Angela Hellwig

Angela Hellwig 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 equilibrium peracetic acid and equilibrium peracetic acid obtainable by the method
    Patent number: 9573893
    Abstract: The invention relates to a method for producing equilibrium peracetic acid by reacting acetic acid with hydrogen peroxide in an aqueous reaction mixture in the presence of methanesulphonic acid as catalyst, and also to the equilibrium peracetic acid obtainable by the method.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: February 21, 2017
    Assignee: EVONIK DEGUSSA GMBH
    Inventors: Andreas Reinold, Stefan Leininger, Angela Hellwig
  • METHOD FOR PRODUCING EQUILIBRIUM PERACETIC ACID AND EQUILIBRIUM PERACETIC ACID OBTAINABLE BY THE METHOD
    Publication number: 20150291520
    Abstract: The invention relates to a method for producing equilibrium peracetic acid by reacting acetic acid with hydrogen peroxide in an aqueous reaction mixture in the presence of methanesulphonic acid as catalyst, and also to the equilibrium peracetic acid obtainable by the method.
    Type: Application
    Filed: October 9, 2013
    Publication date: October 15, 2015
    Inventors: Andreas Reinold, Stefan Leininger, Angela Hellwig