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    • 1. 发明授权
    • Continuous production of acrylonitrile filaments and fibers from
spinning material of low residual solvent content
    • 由纺丝材料连续生产丙烯腈长丝和纤维,残留溶剂含量低
    • US5013502A
    • 1991-05-07
    • US409550
    • 1989-09-19
    • Ulrich ReinehrRolf-Burkhard HirschHermann Josef JungverdorbenJoachim Dross
    • Ulrich ReinehrRolf-Burkhard HirschHermann Josef JungverdorbenJoachim Dross
    • D01D5/04D01F6/18D01F6/38D01F11/06D02G1/16D02J1/22
    • D01F6/18D01D5/04
    • A process for the production of crimped filaments and fibers of acrylonitrile polymers of copolymers containing at least 40% by weight acrylonitrile units, by dry spinning from highly polar solvents, where the filaments are brought to extremely low solvent contents in the actual spinning tube by a minimum of superheated steam prepared in the absence of water at very high spinning tube temperatures and spinning gas temperatures, but are cooled to low filament temperatures in the spinning tube by application of water or aqueous finishes in a quantity equivalent to more than 10% by weight moisture. In this way, spun PAN filaments of good natural color are safely obtained, in which there is no washing stage and no drying stage. Acrylic fibers and filaments combining a vacuolestable structure with a very high degree of whiteness and gloss are thus obtained with densities of at least 1.180 g/cm.sup.3, giving shrinkage-free to high-shrinkage fibers, depending on the aftertreatment applied.
    • 一种制备卷曲长丝的纤维和含有至少40重量%丙烯腈单元的共聚物的丙烯腈聚合物的方法,通过从极性极性溶剂中干燥纺丝,其中丝线在实际纺丝管中达到极低的溶剂含量 在纺丝管温度和纺丝气体温度非常高的条件下,在不存在水的情况下制备的最小过热蒸汽,但是通过施加相当于10重量%以上的水或水性表面处理,在纺丝管中冷却至低丝温度 湿气。 以这种方式,可以安全地获得具有良好天然色彩的纺丝PAN丝,其中没有洗涤阶段并且没有干燥阶段。 因此,获得具有至少1.180g / cm 3的密度的具有非常高的白度和光泽度的可空泡结构的丙烯酸纤维和长丝,根据所施加的后处理,使高收缩纤维无收缩。
    • 6. 发明授权
    • Process for the production of hydrophilic fibres
    • 生产亲水纤维的方法
    • US4239722A
    • 1980-12-16
    • US859216
    • 1977-12-09
    • Ulrich ReinehrHerman-Josef JungverdorbenToni HerbertzJoachim DrossRolf-Burkhard Hirsch
    • Ulrich ReinehrHerman-Josef JungverdorbenToni HerbertzJoachim DrossRolf-Burkhard Hirsch
    • D01F6/18D01F1/02D01F6/54D02G3/00
    • D01F1/02
    • The invention relates to a process for the production of hydrophilic filaments and fibers from filament-forming synthetic polymers by spinning a solution which, in addition to a suitable solvent, contains from 5 to 50% by weight, based on the solvent and solids, of a substance which is essentially a non-solvent for the polymer, has a higher boiling point than the solvent used and is readily miscible with the spinning solvent and with a liquid suitable as a washing liquid for the filaments, and subsequently washing this substance out of the filaments, wherein a suspension is initially prepared at room temperature from the solvent, the polymer and the substance, the suspension thus prepared is subsequently heated, left for at least one minute and at most 15 minutes at a temperature of at least 30.degree. C. and of at most 60.degree. C. above the temperature at which the suspension becomes optically homogeneous, spinning the solution to form filaments or fibers and washing the said substance out of the filaments or fibers.
    • 本发明涉及一种通过纺丝一种溶液来纺丝成型合成聚合物的亲水长丝和纤维的方法,该溶液除了合适的溶剂外还含有基于溶剂和固体的5-50重量% 基本上是聚合物的非溶剂的物质具有比所用溶剂高的沸点,并且易于与纺丝溶剂和适合作为长丝洗涤液体的液体混溶,然后将该物质从 其中首先在室温下从溶剂,聚合物和物质制备悬浮液,然后将如此制备的悬浮液加热,在至少30℃的温度下放置至少一分钟至多15分钟 并且在悬浮液变得光学上均匀的温度以上至多60℃,纺丝溶液以形成长丝或纤维并将所述物质洗出 的长丝或纤维。