Patents by Inventor Heinrich Wehmeyer

Heinrich Wehmeyer 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 1,2,3-trichloropropane
    Patent number: 4714792
    Abstract: 1,2,3-trichloropropane is prepared by reacting allyl chloride with sulfuryl chloride, in the presence of 1-10,000 ppm of a nitrogen-containing base, a phosphine or a phosphine oxide. Suitable nitrogen-containing bases include aliphatic, aromatic and heterocyclic amines, and mixtures thereof; suitable phosphines are preferably aliphatic or aromatic phosphines and suitable phosphine oxides are aliphatic or aromatic phosphine oxides.
    Type: Grant
    Filed: September 6, 1985
    Date of Patent: December 22, 1987
    Assignee: Huels Aktiengesellschaft
    Inventors: Dieter J. Muller, Heinrich Wehmeyer