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22 条记录 (耗时 0.014 秒)

    Production of very fine polymer fibres
    1.
    发明授权
    Production of very fine polymer fibres 失效
    生产非常细的聚合物纤维

    公开(公告)号：US4937020A

    公开(公告)日：1990-06-26

    申请号：US292696

    申请日：1989-01-03

    申请人： Wolfram Wagner ,  Peter R. Nyssen ,  Dirk Berkenhaus ,  Hans-Theo van Pey

    发明人： Wolfram Wagner ,  Peter R. Nyssen ,  Dirk Berkenhaus ,  Hans-Theo van Pey

    IPC分类号： D01F6/06 ,  D01D5/08 ,  D01D5/18 ,  D01F6/60

    CPC分类号： D04H3/02 ,  D01D5/18 ,  D04H3/009 ,  D04H3/011 ,  D04H3/16

    摘要： The polymer granular melt (1) is whirled out of a rotating nozzle head (6) through a plurality of exit holes (24) with fibre formation (32) and the fibres formed (9) are deposited on a collecting surface (12) in web form (15). This polymer melt is introduced into the nozzle head (6) under a preliminary pressure of 1 bar to 200 bar, preferably 1 bar to 50 bar. Furthermore, the fibres (32) are deflected by a high-speed gas stream (7, 8) in a radial direction at a radial distance of 10 mm to 200 mm from the exit holes (24) and, in the course of being deflected, are simultaneously drawn and stretched. The melt streams (32) exiting from the exit holes (24) can be additionally drawn by gas streams (26, 34) exiting in the vicinity of the exit holes (24) at the nozzle head (6) with a predominantly radial component before coming under the influence of the axial deflecting gas stream (7, 8).

    摘要翻译： 聚合物颗粒状熔体（1）通过具有纤维形成（32）的多个出口孔（24）从旋转喷嘴头（6）旋转出来并且形成的纤维（9）沉积在收集表面（12）上 网络形式（15）。 该聚合物熔体在1巴至200巴，优选1巴至50巴的预备压力下引入喷嘴头（6）。 此外，纤维（32）在离开孔（24）的径向距离为10mm至200mm的径向方向上被高速气流（7,8）偏转，并且在被偏转的过程中 ，同时拉伸和拉伸。 从出口孔（24）排出的熔体流（32）可以另外由在喷嘴头（6）处的出口孔（24）附近出口的气流（26,34）以主要的径向分量吸引 在轴向偏转气流（7,8）的影响下。

    Apparatus for the production of fine mineral fibres
    2.
    发明授权
    Apparatus for the production of fine mineral fibres 失效
    用于生产细矿物纤维的设备

    公开(公告)号：US4676815A

    公开(公告)日：1987-06-30

    申请号：US847797

    申请日：1986-04-03

    申请人： Wolfram Wagner ,  Peter R. Nyssen ,  Gunter Espanion ,  Dirk Berkenhaus ,  Gunter Haladuda ,  Hans-Theo van Pey ,  Karl-Heinz Schott

    发明人： Wolfram Wagner ,  Peter R. Nyssen ,  Gunter Espanion ,  Dirk Berkenhaus ,  Gunter Haladuda ,  Hans-Theo van Pey ,  Karl-Heinz Schott

    IPC分类号： C03B37/022 ,  C03B37/06 ,  D01D5/14

    CPC分类号： C03B37/06 ,  D01D5/14

    摘要： Filaments of a molten material issue from a plurality of openings in a heated melt crucible and are further fiberized in a draw nozzle by means of a blowing medium. The diameter of the outlet openings (3) at the base of the melt crucible (1) is very small and is 0.2 to 1.5 mm, so that very fine primary filaments (12) are already formed at this point. These primary filaments are grasped by a very turbulent current at the entrance of the draw nozzle (5). The transverse component of the current decreasing in favor of the longitudinal component as the axial distance from the outlet openings (3) increases. The draw nozzle also has an inlet portion, which has a sharp outer edge and widens in the direction of flow, so that air blows against the primary filaments at a high speed and they are exposed to a strong pressure gradient in the longitudinal direction before entering the inlet portion. In the draw nozzle the primary filaments which are themselves already very thin are drawn out further until they have the required final diameter. For this purpose a zone is provided in the interior of the nozzle, following the inlet portion, in which zone the rate of flow of the blowing medium is 400 m/s to 600 m/s at a pressure of between 0.1 and 0.4 bar. By means of this device very fine mineral fibres with a substantially uniform fibre diameter of between 0.1 .mu.m and 5 .mu.m can be produced.

    摘要翻译： 熔融材料的长丝从加热熔融坩埚中的多个开口出现，并通过吹塑介质进一步在牵引喷嘴中纤维化。 在熔融坩埚（1）底部的出口开口（3）的直径非常小，为0.2-1.5mm，从而在这一点上已经形成非常细的一次丝（12）。 这些初级细丝在拉伸喷嘴（5）的入口处被非常湍流的电流所夹持。 随着与出口（3）的轴向距离的增加，电流的横向分量有利于纵向分量。 牵引喷嘴还具有入口部分，其具有尖锐的外边缘并且在流动方向上变宽，使得空气以高速吹向初级细丝，并且在进入之前暴露于纵向方向上的强压力梯度 入口部分。 在拉丝喷嘴中，本身已经非常薄的主丝被进一步拉出，直到它们具有所需的最终直径。 为此，在喷嘴的内部设有一区域，在入口部分之后，在0.1-4.0巴的压力下，吹送介质的流速为400m / s至600m / s。 通过该装置，可以生产出具有0.1μm至5μm之间的基本上均匀的纤维直径的非常细的矿物纤维。

    Method and device for manufacturing ultrafine fibres from thermoplastic polymers
    3.
    发明授权
    Method and device for manufacturing ultrafine fibres from thermoplastic polymers 失效
    从热塑性聚合物制造超细纤维的方法和装置

    公开(公告)号：US5260003A

    公开(公告)日：1993-11-09

    申请号：US910344

    申请日：1992-07-22

    申请人： Peter R. Nyssen ,  Armin Kreimer ,  Wolfram Wagner ,  Dirk Berkenhaus

    发明人： Peter R. Nyssen ,  Armin Kreimer ,  Wolfram Wagner ,  Dirk Berkenhaus

    IPC分类号： D01D4/02 ,  D01D5/098 ,  D04H1/56 ,  B29B9/10

    CPC分类号： D04H3/16 ,  D01D4/025 ,  D01D5/0985

    摘要： A process and device for manufacturing ultrafine fibers and ultrafine-fibre mats from thermoplastic polymers with mean fibre diameters of 0,2-15 .mu.m, preferably 0,5-10 .mu.m, by a melt blowing technique. The polymer melt (12) flows through at least one bore (15) in a melt blowing nozzle (18). Immediately on emerging from the bore, gas is blown against the extrusion from both sides of the bore exit (15), thus breaking up the melt to form fibers. To this end, the gas is accelerated to supersonic speed in Laval nozzles (25, 26; 31, 32), disposed in mirror symmetry round the bore exits (15), and decelerated to just below the speed of sound in channels (27) with constant cross-section, or a cross-section which decreases in the direction of flow, fitted downstream of the Laval nozzles, and the melt (12) fed into the gas stream emerging from the channels (27).

    摘要翻译： PCT No.PCT / EP91 / 02152 Sec。 371日期：1992年7月22日 102（e）日期1992年7月22日PCT 1991年11月15日PCT PCT。 出版物WO92 / 10599 日期1992年6月25日。一种通过熔喷技术从平均纤维直径为0.2-15μm，优选为0.5-10μm的热塑性聚合物制造超细纤维和超细纤维垫的方法和装置 。 聚合物熔体（12）流过熔喷嘴（18）中的至少一个孔（15）。 立即从孔中出来时，气体从孔出口（15）的两侧吹向挤压件，从而将熔体分解成纤维。 为此，气体在拉瓦尔喷嘴（25,26; 31,32）中被加速到超音速，以孔对角度的方式设置在孔出口（15）周围，并且减速到正好低于通道（27）中的声速， 具有恒定的横截面，或者安装在拉瓦尔喷嘴下游的流动方向上减小的横截面，以及馈送到从通道（27）排出的气流中的熔体（12）。

    Extremely fine polyphenylene sulphide fibres
    4.
    发明授权
    Extremely fine polyphenylene sulphide fibres 失效
    极细的聚苯乙烯纤维

    公开(公告)号：US5075161A

    公开(公告)日：1991-12-24

    申请号：US326960

    申请日：1989-03-22

    申请人： Peter R. Nyssen ,  Wolfram Wagner

    发明人： Peter R. Nyssen ,  Wolfram Wagner

    IPC分类号： D01F6/76 ,  D01D5/08 ,  D04H1/4326 ,  D04H1/56 ,  D04H3/02 ,  D04H3/16

    CPC分类号： D04H3/02 ,  D01D5/0985 ,  D01D5/423 ,  D01F6/765 ,  D04H1/4326 ,  D04H1/56 ,  D04H3/16 ,  Y10S428/903 ,  Y10T428/2929 ,  Y10T442/609 ,  Y10T442/626

    摘要： Fibres, fibre webs or fibre aggregates made of polyphenylene sulphide (PPS) or of mixtures of PPS with other polymers are produced by a melt-spinning process where the melt filaments are drawn out and cooled down to below the melt temperature by a gaseous medium flowing essentially parallel thereto at sonic or supersonic speed, this simultaneous deformation and cooling giving rise to amorphous fine or extremely fine fibres (17) of finite length which are deposited to form a fibre web or fibre aggregate.

    摘要翻译： 由聚苯硫醚（PPS）或PPS与其它聚合物的混合物制成的纤维，纤维网或纤维聚集体通过熔体纺丝法生产，其中将熔体长丝拉出并通过流动的气体介质冷却至低于熔融温度 基本上以声音或超音速平行于此，这种同时的变形和冷却产生有限长度的无定形精细或极细纤维（17），其被沉积以形成纤维网或纤维聚集体。

    Processes for the production of mono- and multifilaments and staple fibers based on kolyarylene sulfides and high-strength polyarylene sulfide fibers
    7.
    发明授权
    Processes for the production of mono- and multifilaments and staple fibers based on kolyarylene sulfides and high-strength polyarylene sulfide fibers 失效

    公开(公告)号：US5215819A

    公开(公告)日：1993-06-01

    申请号：US621403

    申请日：1990-12-03

    申请人： Wolfgang Anderheggen ,  Michael Kraemer ,  Roland Vogelsgesang ,  Wolfram Wagner ,  Wolfgang Olges ,  Thomas Dragovic

    发明人： Wolfgang Anderheggen ,  Michael Kraemer ,  Roland Vogelsgesang ,  Wolfram Wagner ,  Wolfgang Olges ,  Thomas Dragovic

    IPC分类号： D01D5/08 ,  D01F6/76

    CPC分类号： D01D5/08 ,  D01F6/765 ,  Y10T428/2909 ,  Y10T428/2913 ,  Y10T428/2922

    摘要： This invention relates to processes for the production of mono- and multifilaments and also staple fibers of multifilaments based on polyarylene sulfides, preferably substantially linear polyarylene sulfides and, more preferably, substantially linear poly-p-phenylene sulfide by melt spinning, multistage stretching and optionally crimping and setting.As a result of the treatment by blowing of air onto the stabilized spun filaments in the first stretching stages at temperatures .ltoreq.100.degree. C. (preferably in stretching baths, more particularly in boiling water), the chain molecules are oriented; the orientation and crystallinity required for high strengths is achieved by afterstretching (in hot air) at elevated temperature. The residence times in the first stage required for effective stretching in accordance with the invention can only be varied within relatively narrow limits in order subsequently to achieve the calculated orientations and effects, particularly high strengths, crystallinities and densities. Overly long residence times at temperatures above 100.degree. C. result in elongation of the material with no additional orientation and hence with an inadequate increase in strength.To increase crystallinity and strength in the production of mono- and multifilaments, multistage stretching may be followed by a thermal aftertreatment; in the staple fiber process, the material is additionally crimped, set (in the absence of tension) and cut. Where an aerodynamic crimping nozzle is used, as is preferably the case, stretching has to be carried out in accordance with the invention in such a way that the fibers are left with sufficiently high shrinkage which is important for crimping and subsequent processing. Crimping is improved by setting in the absence of tension. Relatively high-tensile fibers with sufficiently high residual crimping for subsequent processing are obtained.Textile-denier fibers (up to about 20 dtex) having hitherto unknown strengths of >6 cN/dtex, preferably >6.2 cN/dtex and, more preferably, >6.4 cN/dtex are claimed.