Patents by Inventor Herman Gustav Weiland

Herman Gustav Weiland 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).

  • High concentration silane emulsions for rendering absorbent substrates water repellent
    Patent number: 5965664
    Abstract: An aqueous silane composition for increasing the resistance to penetration by aqueous media of an absorbent substrate. The composition includes about 1.7 wt. % of an emulsion of an amino functional silicone having an amine content of about 70 mg KOH/gm; up to about 80 wt. % of a hydrolyzable silane; up to about 5 wt. % of an amino functional silane; and the balance water. The resulting composition is hydrolytically stable for a long period without requiring a separate buffering compound while, at the same time, may be prepared in much higher concentrations to reduce packaging and shipping costs.
    Type: Grant
    Filed: August 27, 1997
    Date of Patent: October 12, 1999
    Assignee: Lindley Laboratories, Inc.
    Inventors: William Clarke Lindley, James Thomas Lindley, Jr., Herman Gustav Weiland