Porous, fibrous structures with thermoplastic fluorocarbon coating and
method of making
    20.
    发明授权
    Porous, fibrous structures with thermoplastic fluorocarbon coating and method of making 失效
    多孔,纤维结构用热塑性氟碳涂层及其制造方法

    公开(公告)号:US4693928A

    公开(公告)日:1987-09-15

    申请号:US827529

    申请日:1986-02-10

    Applicant: Warren M. Foss

    Inventor: Warren M. Foss

    Abstract: A process for making a porous, fibrous structure coated with a fluorocarbon polymer comprising (1) preparing an aqueous slurry of inorganic fibers and fluorocarbon polymer; (2) precipitating the fluorocarbon polymer onto the inorganic fibers by lowering the pH of the slurry to an acidic value and adding a cationic flocculant; (e) forming a porous, fibrous structure from the resulting slurry; and (4) drying and heat treating the resulting structure. The porous, fibrous structure comprises inorganic fibers the surfaces of which are coated with a precipitated fluorocarbon polymer with the fibers secured to one another at cross-over points by the fluorocarbon polymer thereby providing structural integrity.

    Abstract translation: 一种制造涂覆有氟碳聚合物的多孔纤维结构体的方法,包括(1)制备无机纤维和碳氟聚合物的含水浆料; (2)通过将浆料的pH降低至酸性值并加入阳离子絮凝剂将氟碳聚合物沉淀到无机纤维上; (e)从所得浆料形成多孔的纤维结构; 和(4)对所得结构进行干燥和热处理。 多孔纤维结构包括无机纤维,其表面涂覆有沉淀的氟碳聚合物,其中纤维通过氟碳聚合物在交叉点处彼此固定,从而提供结构完整性。

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