Patents by Inventor Holm Steude

Holm Steude 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 concentrating latices
    Patent number: 4082659
    Abstract: The present invention is related to the process of concentrating K-polymer-latices by ultra filtration carried out by means of a semi-permeable membrane made of a synthetic polymer having a determined molecular weight, comprising that the membrane is pretreated with an emulsifier solution prior to ultra filtration. This operation substantially prevents the formation of solid matter deposits on the membrane.
    Type: Grant
    Filed: November 11, 1976
    Date of Patent: April 4, 1978
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Christoph Heinze, Kasimir Ruchlak, Holm Steude