Patents by Inventor Franz Jilek

Franz Jilek 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).

  • Thermally expandable sealants
    Patent number: 4277532
    Abstract: A thermally-expandable sealant for joints, cavities or holes, which foams in the event of a fire and thereby effects a seal, comprising as a carrier a fleece or fabric made of glass or plastic, which is coated with a composition based upon expandable graphite and containing, per 100 parts by weight of expandable graphite, 10 to 30 parts by weight of polychlorobutadiene, 1 to 40 parts by weight of an alkylphenol/formaldehyde resin and 1 to 3 parts by weight of stabilizers known per se, and optionally, up to 30 parts by weight of inorganic fibers and up to 80 parts by weight of aluminium hydroxide. A process for sealing joints, cavities or holes using the sealant is also disclosed.
    Type: Grant
    Filed: August 27, 1979
    Date of Patent: July 7, 1981
    Assignee: Chemie Linz Aktiengesellschaft
    Inventors: Hubert Czepel, Franz Jilek, Heinz Zochbauer