Patents by Inventor Johann Mittermeier

Johann Mittermeier 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).

  • Pollutant-resistant composition containing organopolysiloxanes
    Patent number: 5409984
    Abstract: The invention relates to pollutant-resistant compositions containing organopolysiloxanes. They are used for producing impermeable walls and similar ground seals introduced into the earth. This pollutant-resistant organopolysiloxane-containing composition comprises(A) a salt of organic or inorganic acid and organopolysiloxane which has SiC-attached radicals containing basic nitrogen in amounts of at least 0.5% by weight of basic nitrogen, based on the weight of this organopolysiloxane,(B) organosilicon compound containing basic nitrogen in amounts of from 0 to 0.5% by weight, based on the weight of this organosilicon compound,(C) swellable clay minerals and(D) hydraulic binder.
    Type: Grant
    Filed: December 9, 1993
    Date of Patent: April 25, 1995
    Assignee: Wacker-Chemie GmbH
    Inventors: Dieter Gerhardinger, Karl-Heinz Felix, Johann Mittermeier