Patents by Inventor Gyula Wlasitsch

Gyula Wlasitsch 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).

  • Coated composite material for lining passages
    Patent number: 4521465
    Abstract: A bonded composite laminate is provided comprising a textile layer and a plastic film which contains polyurethane urea coating which laminate is suitable for lining and repair of pipelines and canalizations.
    Type: Grant
    Filed: July 18, 1983
    Date of Patent: June 4, 1985
    Assignees: Bayer Aktiengesellschaft, Graboplast
    Inventors: Walter Schroer, Gyula Wlasitsch
  • Process for the production of chemically bonded non-woven sheet materials containing a binder of microheteroporous structure
    Patent number: 4397892
    Abstract: A process for the production of chemically bonded non-woven material, such as synthetic leather, is disclosed wherein a fiber fleece is impregnated with a heat sensitized polymer dispersion and the composition is destabilized to form a porous gel structure. Finally, the polymer is crosslinked at below 150.degree. C. and is dehydrated. Additionally, cut fibers of polyester of polyamide are formed into a fleece and an aqueous dispersion of butadiene-styrene coagulant and a curing composition is impregnated through the fleece. The binder is gelled and cured in superheated steam. The products obtained are soft and possess excellent physical and mechanical properties as well as superior dynamic stressability.
    Type: Grant
    Filed: April 26, 1982
    Date of Patent: August 9, 1983
    Assignees: Bor-,Mubor-,es Cipoipari kutato Intezet, Graboplast, Gyori Pamutszovo-es Muborgyar
    Inventors: Ivan Lorant, Gyula Murlasits, Gyula Wlasitsch, Ferenc Farkas, Geza Szomolanyi