Patents by Inventor Gizella Pai nee Hazkoto

Gizella Pai nee Hazkoto 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).

  • Freon-corrosion, impact and cold resistant flame-retardant polystyrene blend containing zeolites having cation(s) of Mg, Co, Sb, or Mo
    Patent number: 4464504
    Abstract: The invention relates to a blend, based on polystyrene and/or impact resistant polystyrene, which is stress-corrosion, impact and cold resistant and flame retardant.The blend according to the invention contains 50 to 98 mass % of polystyrene or impact resistant polystyrene, 0.01 to 15 mass % of zeolites with a pore size above 0.43 nm, 2 to 18 mass % of a styrene/butadiene block copolymer, 0 to 15 mass % of a flame retardant and 0 to 2 mass % of a surface-active agent.The properties of the blend can be adjusted between wide limits by a suitable selection of the quality and quantity of the components.The blend can be prepared by the processors themselves, whereby the selection of the available polystyrene types can be considerably increased.
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: August 7, 1984
    Assignee: Muanyagipari Kutato Intezet and Hutogepgyar
    Inventors: Jozsef K. Kocsis, Laszlo Kiss, Zoltan Balajthy, Peter Nagy, Gizella Pai nee Hazkoto, Miklos Zarubai, Geza Sipos, Andras Romhanyi, Rudolf Kokai