Patents by Inventor Bernd Amrhein

Bernd Amrhein 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 free-radical polymerization of ethylenically unsaturated compounds
    Patent number: 7645842
    Abstract: The invention relates to a method for radical polymerization of one or several ethylenically unsaturated compounds, characterized in that it consists in providing at least 80.8 percent by weight ethylenically unsaturated compounds in relation to the total weight of the ethylenically unsaturated compounds, adding at least one polymerization initiator for radical polymerization in at least two steps, wherein more polymerization initiator is added in the second step than in the first.
    Type: Grant
    Filed: August 1, 2005
    Date of Patent: January 12, 2010
    Assignee: Rohmax Additives GmbH
    Inventors: Francois Acker, Markus Scherer, Alexander Dardin, Stephan Massoth, Bernd Amrhein, Detlef Bloos, Valerie Dittgen, Alain Roos, Jean-Marc Beiner
  • Method For Free-Radical Polymerization Of Ethylenically Unsaturated Compounds
    Publication number: 20080132663
    Abstract: The invention relates to a method for radical polymerization of one or several ethylenically unsaturated compounds, characterized in that it consists in providing at least 80.8 percent by weight ethylenically unsaturated compounds in relation to the total weight of the ethylenically unsaturated compounds, adding at least one polymerization initiator for radical polymerization in at least two steps, wherein more polymerization initiator is added in the second step than in the first.
    Type: Application
    Filed: August 1, 2005
    Publication date: June 5, 2008
    Applicant: Rohmax Additives GMBH
    Inventors: Francois Acker, Markus Scherer, Alexander Dardin, Stephan Massoth, Bernd Amrhein, Detlef Bloos, Valerie Dittgen, Alain Roos, Jean-Marc Beiner