Patents by Inventor Walter Wernli

Walter Wernli 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).

  • Aliphatic, non-hydrolyzable chloride-containing epoxy resins and process for their production
    Patent number: 4952647
    Abstract: Epoxy resins containing aliphatic, non-hydrolyzable chlorine atoms are prepared by hydrochlorinating an epoxy resin thereby forming a chlorohydrin intermediate product; reacting this intermediate product with epichlorohydrin in the presence of a Lewis acid; and dehydrochlorinating the resultant product.
    Type: Grant
    Filed: January 31, 1990
    Date of Patent: August 28, 1990
    Assignee: The Dow Chemical Company
    Inventors: Robert P. Shirtum, Walter Wernli