Patents by Inventor Matthias Kappel

Matthias Kappel 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).

  • Printing inks based on mineral oil and their use for sheet offset printing
    Patent number: 5508320
    Abstract: A printing ink based on mineral oil contains, as a binder, a mixture ofA) from 10 to 50% by weight of an alkyd resin having a hydroxyl number of from 40 to 260 and an acid number of from 10 to 70 andB) from 50 to 90% by weight of a reaction product of rosin and a phenol/formaldehyde condensate.The printing inks are used in the sheet offset printing process.
    Type: Grant
    Filed: February 1, 1995
    Date of Patent: April 16, 1996
    Assignee: BASF Lacke & Farben
    Inventors: Karl-Wilhelm Klemm, Werner Fries, Matthias Kappel