Patents by Inventor Rotraud Lebender

Rotraud Lebender 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).

  • Solid acetyltartaric acid esters of high fluidity in powder form, and process for the preparation thereof
    Patent number: 3978099
    Abstract: Solid acetyltartaric acid esters that have fluidity in the pulverized form. These esters are obtained from partial glycerides of mixtures of saturated C.sub.14 -C.sub.22 fatty acids having a monoglyceride content of 57 to 63% by weight, and iodine values of below 5 and contain 0.91 to 1.8 moles of tartaric acid and 1.8 to 3.4 moles of acetic acid bound to tartaric acid, per mole of partial glyceride. Also, processes for producing these unique acid esters are disclosed.
    Type: Grant
    Filed: April 2, 1974
    Date of Patent: August 31, 1976
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Rudolf Tuma, Rotraud Lebender