Patents by Inventor Peter Zerres

Peter Zerres 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).

  • Continuous production of n-butylacrylate free from dibutylether
    Patent number: 4012439
    Abstract: N-Butylacrylate is produced by reacting acrylic acid with n-butanol in liquid phase in contact with an acid cation exchanger as a catalyst.To this end, the acrylic acid and butanol are reacted in a molar ratio from 1:1 to 1:2.5, at 80.degree. to 130.degree. C, under a pressure from 3 to 15 atmospheres gauge, and for 20 - 90 minutes.
    Type: Grant
    Filed: October 14, 1975
    Date of Patent: March 15, 1977
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Heinz Erpenbach, Klaus Gehrmann, Herbert Joest, Peter Zerres