Patents Assigned to Raspik Ltd.
  • Patent number: 4462831
    Abstract: The present invention relates to a fire and heat protection material of ablative type. According to the invention an organic binder is mixed with a filler consisting of hydrated aluminum sulfate of the general formula Al.sub.2 (SO.sub.4).sub.3 .n H.sub.2 O (wherein n=14-18) being present in amounts of more than 65% by wt of the mixture.The fire and heat protection material can be produced in the form of hard sheets, tapes, films, putties or paints, the time of heat protection being even more than 90 minutes.The material can be used for coating fuel tanks and particularly for protection of stationary stores of explosives and ammunition.
    Type: Grant
    Filed: July 27, 1982
    Date of Patent: July 31, 1984
    Assignee: Raspik Ltd.
    Inventors: Vitaly Raevsky, Gregory Svechinsky