Patents by Inventor Siegfried Hari

Siegfried Hari 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).

  • Patent number: 5516546
    Abstract: A polymerizable (meth)acrylate system which can be cured at ambient temperature to provide a conductive floor coating or shaped article. The composition comprises (meth)acrylates and optionally other monomers and other components such as pre-polymers, plasticizers, customary additives etc., in combination with amorphous or spheroidal graphite and/or carbon fibers and/or finely divided metal. Other fillers may be added. In particular, amorphous natural graphite, preferably having the particle size 20 to 1000 .mu.m, is suitable. Coatings prepared in this way fulfill the requirements in respect of DIN 51 953.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: May 14, 1996
    Assignee: Degussa Aktiengesellschaft
    Inventors: Siegfried Hari, Dietrich Wenk
  • Patent number: 4201828
    Abstract: Impact resistant glass laminates formed of at least one silicate glass panel and at least one polycarbonate panel bonded together by a methacrylate resin formed from at least 50% by weight of the polymerizable mixture of 2-ethylhexyl methacrylate.
    Type: Grant
    Filed: June 5, 1978
    Date of Patent: May 6, 1980
    Assignees: Deutsche Gold- und Silber-Scheideanstalt vormals Roessler, Fritz Evers
    Inventors: Wolfgang Triebel, Siegfried Hari, Hubert Koert, Fritz Evers
  • Patent number: 4125669
    Abstract: Laminated safety glass wherein the adhesive binder used contains at least 50% by weight of 2-ethylhexylmethacrylate, 0.2 to 2% by weight of the binder of at least one alkylacyl peroxide and 0.005 to 0.5% by weight of the binder of at least one compound which contains a labile halogen atom, as solution in a phlegmatization agent, 0.01 to 10 ppm Cu.sup.++ -ions in the form of a copper salt soluble in the binder and 0.05 to 3% by weight of the binder of a .omega.-mercaptoalkyltrialkoxy silane.
    Type: Grant
    Filed: February 15, 1977
    Date of Patent: November 14, 1978
    Assignee: Deutsche Gold-und Silber-Scheideanstalt Vormals Roessler
    Inventors: Wolfgang Triebel, Siegfried Hari, Hubbert Koert, Fritz Evers