Reinforced wallboard
    2.
    发明申请
    Reinforced wallboard 有权
    钢筋墙板

    公开(公告)号:US20040092624A1

    公开(公告)日:2004-05-13

    申请号:US10351675

    申请日:2003-01-23

    IPC分类号: B32B031/00 B32B013/00

    摘要: A reinforced wallboard core is prepared from a slurry comprising a mixture of null-calcium sulfate hemihydrate, a cellulose ether additive other than CMC and an amount of water that is sufficient to form a slurry and resulting in a wallboard density of less than 0.8 g/cc. The null-calcium sulfate hemihydrate is hydrated by the water forming a wallboard core reinforced by the cellulose ether additive. The cellulose ether, having a molecular weight of at least about 20,000 and a viscosity grade of at least about 100 cps, is selected to give the reinforced wallboard core improved nail pull resistance and greater flexural strength than unreinforced wallboard of the same density. The reinforced wallboard core may be used for reduced-paper wallboard and/or for lightweight wallboard, for example.

    摘要翻译: 由包含β-硫酸钙半水合物,除CMC以外的纤维素醚添加剂的混合物和足以形成浆料的水的量的浆料制备增强的墙板芯,并导致壁板密度小于0.8g / cc。 β-硫酸钙半水合物通过水形成由纤维素醚添加剂增强的墙板芯水合。 选择具有至少约20,000的分子量和至少约100cps的粘度等级的纤维素醚,以使得增强的墙板芯能够提高相对于相同密度的非增强墙板的拔甲力和抗弯强度。 例如,加强墙板芯可用于减薄纸墙板和/或用于轻质墙板。

    Advanced filtration devices and methods
    4.
    发明申请
    Advanced filtration devices and methods 审中-公开
    先进的过滤装置和方法

    公开(公告)号:US20040250683A1

    公开(公告)日:2004-12-16

    申请号:US10835555

    申请日:2004-04-28

    IPC分类号: B01D046/00

    摘要: A filter media comprises a medium for capturing and neutralizing harmful substances. Methods for fabricating a low-pressure, high efficiency filter media for capturing harmful substances produce filter media having engineered pores that have an engineered pour size dispersion, which may be monodispersed and uniformly arranged. Neutralizing components may be coated on filter media, providing both increased capture efficiency and neutralization of at least one harmful substance, such as harmful pathogens, aerosols, particulates, VOCs, gases and vapors.

    摘要翻译: 过滤介质包括用于捕获和中和有害物质的介质。 用于制造用于捕获有害物质的低压,高效过滤介质的方法产生具有工程化孔的过滤介质,其具有可以单分散和均匀排列的工程倾倒尺寸分散体。 中和组分可以涂覆在过滤介质上,提供增加的捕获效率和中和至少一种有害物质,例如有害病原体,气溶胶,颗粒,VOC,气体和蒸气。