Patents by Inventor Volker Helf

Volker Helf 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).

  • Preparation of 1,3-diols
    Patent number: 6380443
    Abstract: A process for preparing 1,3-diols having 6 or more carbon atoms comprises a) provision of at least one alkanal having at least three carbon atoms; b) thermal treatment of the alkanal in the absence of a basic catalyst; c) hydrogenation of the aldol addition product formed in step b); and d) isolation of the 1,3-diol obtained. The process of the present invention makes it possible to prepare 1,3-diols simply and inexpensively.
    Type: Grant
    Filed: October 3, 2000
    Date of Patent: April 30, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Detlef Kratz, Harald Rust, Roland Krokoszinski, Volker Helf