Patents by Inventor Horst Sobitzkat

Horst Sobitzkat 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).

  • Patent number: 6265481
    Abstract: The invention relates to a printing ink which consists of pigments, an alkyd resin binder modified with fatty acids having an iodine number from 120 to 280 (g of I2/100 g), a phenolic resin-modified rosin binder and, if appropriate, further binders and further conventional constituents, such as lubricants, solvents, thickeners and thixotropic agents. The alkyd resin binder and the phenolic resin-modified rosin binder are present in proportions from 10 to 40% by weight and 60 to 90% by weight respectively, their sum giving 100% by weight. The alkyd resin has an acid number of Less than 11 and a hydroxyl number from 40 to 260 and has been prepared by reacting a) an unsaturated fatty acid having 6 to 20 carbon atoms or a mixture of such acids or their triglycerides with b) a polyol and c) a dicarboxylic acid.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 24, 2001
    Assignee: BASF Lacke & Farben Aktiengesellschaft
    Inventors: Werner Fries, Karl-Wilhelm Klemm, Arnold Dobbelstein, Horst Sobitzkat