Method for producing meta-aramid fiber paper-based material
    268.
    发明申请
    Method for producing meta-aramid fiber paper-based material 审中-公开
    间位芳纶纤维纸基材料的制备方法

    公开(公告)号:US20170073896A1

    公开(公告)日:2017-03-16

    申请号:US15360711

    申请日:2016-11-23

    Abstract: A method for producing a meta-aramid fiber paper-based material includes steps of: adding functional powders into a first poly(m-phenylene isophthalamide) solution, and obtaining a homogeneous mixed solution; through a dry spinning method, obtaining meta-aramid chopped fibers; through a second poly(m-phenylene isophthalamide) solution, obtaining meta-aramid fibrids; processing the fibrids with a multi-stage classification, selecting the fibrids having an appropriate mesh number and combining in proportion; mixing the chopped fibers and the fibrids, and relieving until uniform; forming a paper through an ultralow concentration inclined wire forming machine with an ultrasonic process and a wet-papermaking process; after squeezing and drying, obtaining a meta-aramid fiber base paper, and then processing with surface coating; and, after multi-stage calendering, rewinding and slitting, obtaining the high-performance meta-aramid fiber paper-based material. The paper-based material has a thickness of 1.5-30 mil, a high whiteness, a smooth and even surface, excellent characteristics, and a good performance stability.

    Abstract translation: 制备间位芳族聚酰胺纤维纸基材料的方法包括以下步骤:将功能性粉末添加到第一聚(间亚苯基间苯二酰胺)溶液中,并获得均匀的混合溶液; 通过干纺法,得到间位芳纶短切纤维; 通过第二聚(间亚苯基间苯二酰胺)溶液,得到间位芳族聚酰胺纤条体; 用多级分级法处理纤条体,选择具有适当筛网数量的纤条体并按比例组合; 混合短切纤维和纤条体,然后缓解至均匀; 通过超声波浓缩倾斜成丝机通过超声波处理和湿法造纸过程形成纸张; 挤压干燥后,得到间位芳纶纤维原纸,再用表面涂层加工; 经多级压延,倒卷和切割后,得到高性能间位芳族聚酰胺纤维纸基材料。 纸基材料的厚度为1.5-30密耳,白度高,光滑均匀,特性优异,性能稳定。

    Silica composition
    270.
    发明授权
    Silica composition 有权
    二氧化硅组成

    公开(公告)号:US09528010B2

    公开(公告)日:2016-12-27

    申请号:US14007376

    申请日:2012-03-26

    Abstract: The purpose of the present invention is to provide an additive for a solvent-based coating material which has high coating material product stability when added to a solvent-based coating material and whereby the resulting coating film has excellent abrasion resistance. Specifically, the present invention provides a silica composition containing silica coated with a cationic surfactant represented by a specific structure, and also provides a solvent-based coating material composition comprising the silica composition.

    Abstract translation: 本发明的目的是提供一种溶剂型涂料的添加剂,其在添加到溶剂型涂料中时具有高的涂料产品稳定性,由此得到的涂膜具有优异的耐磨性。 具体而言,本发明提供一种二氧化硅组合物,其含有由特定结构表示的阳离子型表面活性剂所涂覆的二氧化硅组合物,并且还提供包含二氧化硅组合物的溶剂型涂料组合物。

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