Durable melt-blown particle-loaded sheet material
    16.
    发明授权
    Durable melt-blown particle-loaded sheet material 失效
    耐久的熔喷颗粒负载片材

    公开(公告)号:US4868032A

    公开(公告)日:1989-09-19

    申请号:US899343

    申请日:1986-08-22

    Abstract: A permeable sheet material comprised of particle-loaded, melt-blown fiber web having a plurality of reinforcing fibers extending therethrough is provided. The reinforcing fibers are needled through the web of melt-blown fibers and are then bonded to fibers on the opposing faces of the layer of melt-blown fibers to hold the reinforcing fibers in position. Solid particles dispersed in the layer of melt-blown fibers are preferably vapor-sorptive particles, e.g., activated carbon, so that the sheet material will sorb vapors passing therethrough. The sheet material is particularly useful as a component of a chemical protective garment.

    Abstract translation: 提供了由具有延伸穿过其中的多个增强纤维的由颗粒负载的熔喷纤维网组成的可渗透片材。 将增强纤维穿过熔喷纤维网,然后与熔喷纤维层的相对面上的纤维接合,以将增强纤维保持在适当位置。 分散在熔喷纤维层中的固体颗粒优选为蒸汽吸附颗粒,例如活性炭,使得片材将吸收通过其中的蒸汽。 片材特别用作化学防护服的组分。

    Cartridge respirator with service life indicator
    19.
    发明授权
    Cartridge respirator with service life indicator 失效
    带呼吸器的呼吸器,带有使用寿命指示器

    公开(公告)号:US4326514A

    公开(公告)日:1982-04-27

    申请号:US161441

    申请日:1980-06-20

    Inventor: Gilbert L. Eian

    CPC classification number: A62B18/088 Y10S55/33 Y10S55/34 Y10S55/35

    Abstract: A visually observable means for indicating end of service life of hazardous vapor/gas respirator cartridges or canisters is disclosed. A colorimetric indicator in sheet form is positioned along the inner transparent sidewall of the respirator cartridge or canister.

    Abstract translation: 公开了一种用于指示危险蒸汽/气体呼吸器筒或罐的使用寿命结束的视觉可见的装置。 片剂形式的比色指示剂沿着呼吸器筒或罐的内部透明侧壁定位。

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