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52 条记录 (耗时 0.013 秒)

    Process for producing a strengthened fiber assembly
    43.
    发明授权
    Process for producing a strengthened fiber assembly 有权
    加强纤维集合体的制造方法

    公开(公告)号：US6042890A

    公开(公告)日：2000-03-28

    申请号：US173822

    申请日：1998-10-16

    申请人： Harmut Ruf ,  Heinrich Firgo ,  Siegfried Ambrosch ,  Christian Schlossnikl ,  Raimund Jurkovic

    发明人： Harmut Ruf ,  Heinrich Firgo ,  Siegfried Ambrosch ,  Christian Schlossnikl ,  Raimund Jurkovic

    IPC分类号： D06M13/388 ,  D06M23/10 ,  B05D1/38 ,  B05D3/10

    CPC分类号： D06M23/10 ,  D06M13/388 ,  D06M2101/06

    摘要： The invention relates to a process for producing a strengthened fiber assembly containing cellulosic fibers with the cellulose being present in the crystalline structure of cellulose II, by contacting the fiber assembly with an aqueous solution of N-methylmorpholine-N-oxide (NMMO) at elevated temperature and subsequently washing the fiber assembly, characterized in that contacting is effected in a manner that from the relation-947+0.30.times.log.sub.(10) t+0.046.times.T-3.53.times.C +645.times.log.sub.(10) Cwherein t indicates the time in minutes during which the fiber assembly is contacted with the aqueous NMMO solution, T indicates the temperature of the aqueous NMMO solution in .degree.C. and C is the concentration of NMMO in % by mass, based on the aqueous NMMO solution, a number in the range of 0.30 to 1.70 results with the proviso that the temperature T is smaller than 130.degree. C. and the concentration C ranges between 70 and 84 % by mass.

    摘要翻译： 本发明涉及一种生产包含纤维素纤维的增强纤维组合物的方法，纤维素存在于纤维素II的晶体结构中，通过使纤维组合物与升高的N-甲基吗啉-N-氧化物（NMMO）的水溶液接触 温度并随后洗涤纤维组件，其特征在于，以从947 + 0.30xlog（10）t + 0.046xT-3.53xC + 645xlog（10）C的关系式来进行接触，其中t表示以分钟为单位的时间 纤维组合物与NMMO水溶液接触，T表示NMMO水溶液的温度为DEG，C为NMMO浓度，以NMMO水溶液为基准，其数量范围为0.30 至1.70的结果，条件是温度T小于130℃，浓度C在70和84质量％之间。

    Concentrated aqueous dispersions of tetrafluoroethylene polymers, and process for their preparation
    44.
    发明授权
    Concentrated aqueous dispersions of tetrafluoroethylene polymers, and process for their preparation 失效
    四氢氟乙烯聚合物浓缩水分散体及其制备方法

    公开(公告)号：US5219910A

    公开(公告)日：1993-06-15

    申请号：US916202

    申请日：1992-07-17

    申请人： Karlheinz Stahl ,  Wolfgang Neumann ,  Hubert Seitz

    发明人： Karlheinz Stahl ,  Wolfgang Neumann ,  Hubert Seitz

    IPC分类号： B01F17/16 ,  C08J3/03 ,  C08K5/17 ,  C08K5/32 ,  C08L27/12 ,  C08L27/18 ,  C09D127/12 ,  C09D127/18 ,  D06M13/388 ,  D06M15/256 ,  D06N3/04

    CPC分类号： C08J3/03 ,  C08K5/32 ,  D06M13/388 ,  D06M15/256 ,  D06N3/047 ,  C08J2327/18

    摘要： Concentrated, aqueous, colloidal dispersions of tetrafluoroethylene polymers having a polymer solids content of 25 to 70% by weight, which comprise, as the dispersion stabilizer, an amine oxide of the formula ##STR1## in which R.sup.1 is an alkyl radical having 6 to 22 carbon atoms or a mixture of such alkyl radicals and R.sup.2 is an alkyl radical having 1 to 22 carbon atoms or a mixture of such alkyl radicals, and in which R.sup.1 and R.sup.2 are identical or different and 50 to 0% by weight of the alkyl radicals R.sup.1 and R.sup.2 can be replaced by alkenyl radicals having 6 to 22 carbon atoms and having 1 to 3 C.dbd.C double bonds, are obtained by concentration with addition of these dispersion stabilizers. The dispersions are used for impregnating yarns and textile sheet-like structures.

    摘要翻译： 聚合物固体含量为25至70重量％的四氟乙烯聚合物的浓缩水性胶态分散体，其包含作为分散稳定剂的下式的氧化胺其中R 1为具有 6至22个碳原子或这些烷基和R 2的混合物是具有1至22个碳原子的烷基或这种烷基的混合物，并且其中R 1和R 2相同或不同，和50至0重量％ 通过加入这些分散稳定剂浓缩得到烷基R1和R2可以被具有6至22个碳原子并且具有1至3个C = C双键的烯基取代。 分散体用于浸渍纱线和织物片状结构。