Method of making blown films of cellulose
    1.
    发明授权
    Method of making blown films of cellulose 失效
    制造纤维素吹塑薄膜的方法

    公开(公告)号:US6113842A

    公开(公告)日:2000-09-05

    申请号:US765025

    申请日:1997-02-28

    CPC分类号: C08J5/18 C08J2301/02

    摘要: The invention is directed to a method of manufacturing oriented cellulose films by spinning non-derivated cellulose dissolved in amino oxides into a precipitating bath. The cellulose solution is extruded downward through a film-blowing nozzle and an external air gap into the precipitating bath. The spun cellulose film can be inflated after exiting the film-blowing nozzle.

    摘要翻译: PCT No.PCT / DE95 / 00811 Sec。 371日期1997年2月28日 102(e)日期1997年2月28日PCT提交1995年6月19日PCT公布。 公开号WO95 / 35340 日期1995年12月28日本发明涉及通过将溶解在氨基氧化物中的非衍生纤维素纺丝成沉淀浴来制备取向纤维素膜的方法。 纤维素溶液通过吹膜喷嘴向下挤出,并将外部空气间隙挤入沉淀浴中。 纺丝纤维素膜可以在离开吹膜喷嘴之后膨胀。

    Process of making flexible cellulose fibers
    3.
    发明授权
    Process of making flexible cellulose fibers 失效
    制造柔性纤维素纤维的工艺

    公开(公告)号:US5618483A

    公开(公告)日:1997-04-08

    申请号:US469426

    申请日:1995-06-06

    CPC分类号: D01F2/00

    摘要: This invention relates to flexible cellulose fibers with a reduced modulus and a decreased NMR degree of order, particularly for use in the textile field, which are obtained by pressing out solutions of the cellulose in hydrous NMMNO through spinning nozzles along an air travel into an NMMNO-containing aqueous and/or alcoholic precipitation bath as well as by a conventional rinsing, aftertreatment and drying, with strengths of between 15 and 50 cN/tex, and to a process for their production. According to the invention, these flexible cellulose fibers have an initial modulus of less than 1,500 cN/tex, and the relationship of the heights of the lines at 88 ppm and 85 ppm above the spectrum base line in the highly resolved .sup.13 C-NMR solid-body spectrum is .ltoreq.1. Furthermore, these flexible cellulose fibers are obtained by means of a process in which specified hydrophilic, low-molecular weight, organic additives, which are soluble in the polymer solution and have mainly nitrogen-containing groupings are added in defined amounts to the spinning solution of the cellulose as well as to the precipitation bath.

    摘要翻译: 本发明涉及具有降低的模量和降低的NMR程度的柔性纤维素纤维,特别是在织物领域中使用的柔软纤维素纤维,其通过将空气NMMNO中的纤维素溶液通过纺丝喷嘴沿空气行进压入NMMNO而获得 的含水和/或醇沉淀浴,以及通过常规冲洗,后处理和干燥,强度为15至50cN / tex,以及其生产方法。 根据本发明,这些柔性纤维素纤维的初始模量小于1500cN / tex,高分辨13C-NMR固体中的光谱基线以上88ppm和85ppm处的线的高度之间的关系, 身体光谱为

    Process for producing cellulose fibres
    4.
    发明授权
    Process for producing cellulose fibres 失效
    生产纤维素纤维的方法

    公开(公告)号:US6103162A

    公开(公告)日:2000-08-15

    申请号:US091679

    申请日:1998-12-14

    CPC分类号: D01F2/00 D01F11/02

    摘要: The invention relates to a process for producing flexible cellulose fibres by spinning solutions of the cellulose through spinnerets over an air layer in an amine oxide-containing aqueous and/or alcoholic regenerating bath followed by drying, in which the damp threads from the spinneret are taken before drying through at least one post-treatment bath containing water and water-miscible alkanols, diols, triols or mixtures thereof, and a washing bath containing water, an alkanol, a diol or a triol.

    摘要翻译: PCT No.PCT / DE96 / 02190 Sec。 371 1998年12月14日第 102(e)1998年12月14日PCT PCT 1996年11月13日PCT公布。 出版物WO97 / 25462 日本1997年7月17日本发明涉及一种生产柔性纤维素纤维的方法,该方法是在含氧化胺的含水和/或酒精再生浴中通过喷丝头在空气层上纺丝纤维素的溶液,然后干燥而制备柔性纤维素纤维,其中, 通过至少一个含有水和水混溶性链烷醇,二醇,三醇或其混合物的后处理浴,以及含有水,链烷醇,二醇或三醇的洗涤浴,从喷丝头中取出。