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817 条记录 (耗时 0.028 秒)

    Process for the preparation of fibers from polymeric materials
    91.
    发明授权
    Process for the preparation of fibers from polymeric materials 失效
    从聚合材料制备纤维的方法

    公开(公告)号：US4600545A

    公开(公告)日：1986-07-15

    申请号：US22057

    申请日：1979-03-19

    申请人： Paolo Galli ,  Paolo Parrini

    发明人： Paolo Galli ,  Paolo Parrini

    IPC分类号： D01F6/04 ,  D01D5/11 ,  D01F6/00 ,  D21H13/14 ,  D21B1/36

    CPC分类号： D01D5/11 ,  D21H13/14 ,  D21H5/202

    摘要： Polyolefin fibers, which are suited for at least partially substituting the cellulose fibers in the manufacture of paper, are produced by a process which consists in preparing in a pressure vessel a solution of a polyolefin at a temperature higher than the boiling temperature of the solvent under normal conditions, and under autogenous pressure or a pressure greater than the autogenous pressure, in ejecting said solution under the above stated conditions into a zone of lower pressure, in allowing the ejected solution to expand at least partially in said zone, and in then hitting the at least partially expanded solution with a jet of a high-speed fluid, which is at a temperature lower than that of the solution, and has an angled direction with respect to the direction of ejection of the solution.

    摘要翻译： 适用于至少部分代替纤维素纤维制造纸张的聚烯烃纤维是通过一种方法生产的，该方法包括在压力容器中在高于溶剂沸点温度的温度下制备聚烯烃溶液 在自生压力或大于自体压力的压力下，在将上述条件下将所述溶液喷射到较低压力的区域中，以允许喷射的溶液至少部分地在所述区域中膨胀，然后在打击 所述至少部分膨胀的溶液具有高于溶液的温度的高速流体的射流，并且相对于溶液的喷射方向具有成角度的方向。

    Wettable olefin polymer fibers
    92.
    发明授权
    Wettable olefin polymer fibers 失效
    可湿性烯烃聚合物纤维

    公开(公告)号：US4578414A

    公开(公告)日：1986-03-25

    申请号：US703077

    申请日：1985-02-19

    申请人： Lawrence H. Sawyer ,  George W. Knight

    发明人： Lawrence H. Sawyer ,  George W. Knight

    IPC分类号： C08K5/103 ,  C08K5/13 ,  C08L23/08 ,  C08L65/04 ,  D01F1/10 ,  D01F6/04 ,  C08K5/10 ,  C08K5/11 ,  C08L91/00

    CPC分类号： D01F6/04 ,  C08K5/103 ,  C08K5/13 ,  C08L23/0815 ,  D01F1/10 ,  C08L65/04

    摘要： Wettable fibers and/or filaments, especially those of fine denier, are prepared from olefin polymers, especially linear low density copolymer (LLDPE), by having incorporated into said olefin polymer at least one wetting agent of the group comprising (a) an alkyoxylated alkyl phenol along with a mixed mono-, di-, and/or tri-glyceride, or (b) a polyoxalkylene fatty acid ester, or (c) a combination of (b) and any part of (a) above.

    摘要翻译： 通过将所述烯烃聚合物中的至少一种润湿剂并入所述烯烃聚合物，特别是线性低密度共聚物（LLDPE）中，可湿性纤维和/或长丝，特别是细旦尼尔纤维和/或长丝由（a）烷氧基化烷基 苯酚以及（b）聚氧亚烷基脂肪酸酯或（c）（b）和（a）的任何部分的组合的混合的甘油单酯，二酯和/或三酯。

    Process for the manufacture of fibrils
    99.
    发明授权
    Process for the manufacture of fibrils 失效
    原纤维制造工艺

    公开(公告)号：US4125584A

    公开(公告)日：1978-11-14

    申请号：US812031

    申请日：1977-07-01

    申请人： Robert E. Boehme ,  Clarence R. Murphy

    发明人： Robert E. Boehme ,  Clarence R. Murphy

    IPC分类号： D01F6/04 ,  D01D5/18 ,  D01D5/40 ,  C08G51/12 ,  B24D3/00

    CPC分类号： D01D5/40 ,  Y10S264/47

    摘要： Centrifugal spinning apparatus is provided for the manufacture of fibrils from hot viscous hydrocarbon solutions of olefin polymers having an intrinsic viscosity of at least 3.5. The apparatus consists of an impeller which rotates at high speed in a cylindrical cavity having a discharge port. The impeller has a plurality of blades whose narrow dimensions lie substantially in the plane of the impeller's rotation and whose tips come in close proximity to the inner peripheral surface of the cylindrical cavity. The blades are arranged in at least two substantially-identical sets. Within each set, the blades are offset substantially equidistant from one another, both in the rotational plane of the impeller and in the plane transverse thereto. Two inlet ports are provided in the peripheral surface of the cylindrical cavity to feed liquids to the cylindrical cavity, each of which port is narrow in a plane transverse to the plane of the impeller's rotation and extends over substantially the entire peripheral surface. The inlet ports are positioned near the discharge port of the cylindrical cavity and upstream thereof viewed with respect to the impeller's rotation, so that the bulk of the liquids entering the cavity from the inlet ports are swept away from the discharge port by the impeller's rotation.

    摘要翻译： {PG，1离心纺丝设备用于从特性粘度至少为3.5的烯烃聚合物的热粘性烃溶液制造原纤维。 该装置由在具有排出口的圆柱形空腔中高速旋转的叶轮组成。 叶轮具有多个叶片，其狭窄尺寸基本上位于叶轮的平面（3s旋转中，并且其尖端靠近圆柱形腔的内周表面）。 叶片布置在至少两个基本相同的组中。 在每组中，叶片在叶轮的旋转平面中和横向于其的平面中彼此基本等距离地偏移。 两个入口端口设置在圆柱形空腔的圆周表面中，以将液体供给到圆柱形腔体，每个孔口在垂直于叶轮平面的平面（3s旋转中并且在基本上整个圆周表面上延伸）的窄边。 入口端口位于圆柱形腔的排出口附近，并且相对于叶轮（3s的旋转）观察其上游，使得从入口端口进入空腔的大部分液体从排出口被扫除 叶轮{3 s旋转。