Patents by Inventor Eberhard Baer

Eberhard Baer 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).

  • PVC polymerization with metered addition of emulsifiers
    Patent number: 6242541
    Abstract: A process for preparing homo- and copolymers of vinyl chloride by batch polymerization in aqueous emulsion in the presence of an emulsifier combination comprising at least two emulsifiers selected from the class consisting of anionic and nonionic emulsifiers, metered in during the polymerization, which comprises metering-in in the first phase of the polymerization, at least one emulsifier of the emulsifier combination having at least 10 carbon atoms, and not starting to meter in the remaining emulsifiers of the emulsifier combination until a polymerization conversion of at least 10% has been reached.
    Type: Grant
    Filed: October 6, 1998
    Date of Patent: June 5, 2001
    Assignee: Vinnolit Kunststoff GmbH
    Inventors: Robert Hohenadel, Rudolf Puhe, Eberhard Baer, Alfred Lux