GRAFTED PARA-ARAMID FIBER AND METHOD OF MAKING

    公开(公告)号:US20150197886A1

    公开(公告)日:2015-07-16

    申请号:US14155456

    申请日:2014-01-15

    Inventor: MARK F. TEASLEY

    Abstract: A method of making a fiber comprised of poly(p-phenylene terephthalamide) having monomer groups grafted onto the fiber surface, the method comprising the steps of (i) providing a fiber of poly(p-phenylene terephthalamide) that has been dried to remove adsorbed moisture, (ii) treating the fiber, in a non-polar solvent that will not dissolve the fiber, with a phosphazene base that exhibits a pKa in dimethylsulfoxide of at least 21 so as to generate anions at the amide sites on the surface of the poly(p-phenylene terephthalamide) fiber, (iii) washing the base-activated fiber with an aprotic solvent, (iv) grafting a monomer onto the anion sites so as to introduce reactive functional groups onto the surface of the poly(p-phenylene terephthalamide) fiber, and (v) washing the grafted fiber of step (iv) with a protic solvent to extract any residual base compounds and grafting agents that are unbound to the surface of the fibers.

    Abstract translation: 一种由具有接枝到纤维表面上的单体基团的聚(对苯二甲酰对苯二胺)构成的纤维的方法,所述方法包括以下步骤:(i)提供已经干燥以去除的聚(对苯二甲酰对苯二胺)纤维 吸附的水分,(ii)在不溶于纤维的非极性溶剂中用在二甲基亚砜中显示pKa至少为21的磷腈碱处理纤维,以便在表面上的酰胺位置产生阴离子 聚对苯二甲酰对苯二胺纤维,(iii)用非质子溶剂洗涤碱活化的纤维,(iv)将单体接枝到阴离子部位上,以将反应性官能团引入聚(对 - 苯乙烯对苯二甲酰胺)纤维,和(v)用质子溶剂洗涤步骤(iv)的接枝纤维,以提取未结合到纤维表面的任何残留的碱性化合物和接枝剂。

    Softening composition
    9.
    发明授权
    Softening composition 失效
    软化组成

    公开(公告)号:US06503412B1

    公开(公告)日:2003-01-07

    申请号:US09645644

    申请日:2000-08-24

    Applicant: Wen Schroeder

    Inventor: Wen Schroeder

    Abstract: The present invention is generally directed to a softening composition that can be applied to a fibrous web, such as a tissue. In one embodiment, the softening composition contains up to about 40% by weight of a silicone polymer, up to about 20% by weight of a silicone polyether, up to about 20% by weight of a softness-enhancing agent; and up to about 40% by weight of a solvent. Other components, such as odor control agents, foaming aids, etc., can also be incorporated into the softening composition.

    Abstract translation: 本发明通常涉及可应用于纤维织物如纸巾的软化组合物。 在一个实施方案中,软化组合物包含至多约40重量%的硅氧烷聚合物,至多约20重量%的硅氧烷聚醚,至多约20重量%的柔软度增强剂; 和最多约40重量%的溶剂。 软化组合物中还可以加入其它组分,例如气味控制剂,发泡助剂等。

Patent Agency Ranking