Patents by Inventor Hubert Kogler

Hubert Kogler 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).

  • Method for producing a water-permeable covering on granular water-soluble substances
    Patent number: 4772490
    Abstract: The invention relates to a method for producing a water-permeable covering on granular, water-soluble substances by coating them with a synthetic resin. The method of the invention uses a coating composition which comprises a polyisocyanate and a polyol component of a condensation product from phenols and aldehydes, a softener containing hydroxyl groups and optionally a diluent containing hydroxyl groups. The coating composition is cured at room temperature with an amine as a catalyst.
    Type: Grant
    Filed: December 16, 1986
    Date of Patent: September 20, 1988
    Assignee: Ashland Oil, Inc.
    Inventors: Hubert Kogler, Reinhard Winter, Peter Kuhlmann