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。

    Fibre reactive polymers
    6.
    发明授权
    Fibre reactive polymers 失效
    纤维反应聚合物

    公开(公告)号:US5932672A

    公开(公告)日:1999-08-03

    申请号:US43769

    申请日:1998-03-27

    CPC classification number: D06M23/00 D06M14/00 D06M14/02 D06M14/08 D06M14/16

    Abstract: Permanently stain resistant nylon and cellulosic fibers, and a method to impart permanent stain resistance to polyamide or cellulosic fibers, by covalently binding a stain resistant composition to a linking compound that has been covalently attached to the fiber are disclosed. This invention represents a significant advance in the art of textile treatments in that the covalently linked stain resist treatment is not removed after a series of alkaline shampooins. This invention is particularly useful in the preparation of commercial grade carpets for heavy traffic areas that will not lose their stain resistance after frequent shampooing.

    Abstract translation: PCT No.PCT / GB96 / 02220 Sec。 371日期:1998年3月27日 102(e)1998年3月27日PCT PCT 1996年9月9日PCT公布。 出版物WO97 / 日期1997年04月10日公开了通过共价结合抗污染组合物与已经共价连接到纤维上的连接化合物,对聚酰胺或纤维素纤维赋予永久抗污性的方法。 本发明代表纺织品处理领域的重大进步,因为在一系列碱性洗发剂之后,共价连接的抗污染处理不被除去。 本发明特别适用于在经常洗发后不会失去耐污染性的交通繁忙地区的商业地毯的制备。

    Process for improving polymer substrate properties, and modified
polymers produced thereby
    8.
    发明授权
    Process for improving polymer substrate properties, and modified polymers produced thereby 失效
    用于改善聚合物基材性能的方法,以及由此制备的改性聚合物

    公开(公告)号:US4672005A

    公开(公告)日:1987-06-09

    申请号:US663103

    申请日:1984-10-22

    Inventor: Michael E. Dyer

    Abstract: A process for improving the hygroscopic and soil release properties of a polymer substrate is provided in which the substrate is contacted with a suitable aqueous mixture containing a water soluble vinyl monomer and a hydrophobic vinyl monomer at a temperature of between about 40.degree. C. to 100.degree. C., and initiating polymerization of the water-soluble monomer by a chemical or physical initiator to form a vinyl polymer evenly disposed on the substrate. The hygroscopic and soil release properties of the substrate are thereby improved. The mixture may be in the form of an emulsion wherein the hydrophobic vinyl monomer is emulsified by an appropriate emulsifying agent. The invention also pertains to the improved substrates prepared in accordance with the present process.

    Abstract translation: 提供了一种用于改善聚合物基材的吸湿性和污垢释放性能的方法,其中将基材与含有水溶性乙烯基单体和疏水性乙烯基单体的合适的含水混合物在约40℃至100℃的温度下接触 并通过化学或物理引发剂引发水溶性单体的聚合,以形成均匀地设置在基材上的乙烯基聚合物。 由此提高了基材的吸湿性和剥离性。 混合物可以是乳液的形式,其中疏水性乙烯基单体通过适当的乳化剂乳化。 本发明还涉及根据本方法制备的改进的底物。

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