Patents by Inventor Heinz W. Lucas

Heinz W. Lucas 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 the production of brominated chlorine-substituted poly-1,3-butadiene
    Patent number: 5306740
    Abstract: Brominated chlorine-substituted poly-1,3-butadiene is produced by a process in which an aqueous chlorine-substituted poly-1,3-butadiene latex is reacted in aqueous phase with a brominating agent in the presence of a radical-forming catalyst and/or in the presence of light at a pH value below 7 and at a temperature of 20.degree. to 95.degree. C., the brominated reaction product is optionally precipitated from the aqueous dispersion obtained and then separated from the aqueous liquid.
    Type: Grant
    Filed: April 12, 1993
    Date of Patent: April 26, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans J. Laas, Heinz W. Lucas, Klaus Nachtkamp, Heinrich Konigshofen