This invention pertains to a layered sheet comprising a flame resistant wet-laid nonwoven carrier having a first and second surface and an inorganic refractory layer adjacent to at least one surface of the carrier wherein the refractory layer has a dry area weight of from 15 to 50 gsm, the bond strength between the refractory layer and the surface of the carrier is at least 0.25 lb/in, wherein the carrier comprises from 40 to 70 weight percent of aramid fibers and from 30 to 60 weight percent of polymeric binder, is hydrophilic, has a smoothness on at least one surface of no less than 250 Sheffield units, a thickness of from 0.025 to 0.175 mm and a density of from 0.25 to 0.60 g/cc. Preferably the carrier is in the form of a paper.


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    Title :

    MULTILAYERED SHEET


    Additional title:

    MEHRSCHICHTIGE FOLIE
    FEUILLE MULTICOUCHES


    Contributors:

    Publication date :

    2020-12-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    D21H PULP COMPOSITIONS , Faserbreimischungen [Pulpen] / B64C AEROPLANES , Flugzeuge / F16L PIPES , Rohre / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES



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