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    • 2. 发明授权
    • Process for producing cellulosic shaped objects
    • 纤维素状物的制造方法
    • US06190596B1
    • 2001-02-20
    • US09242321
    • 1999-04-09
    • Derek BudgellUlrich WachsmannWilhelm Kramer
    • Derek BudgellUlrich WachsmannWilhelm Kramer
    • C08B100
    • D01F2/00C08B1/003C08L1/02C08L2666/02
    • A process for producing cellulosic shaped objects includes extruding and coagulating a solution of chemical wood pulp in a tertiary amine oxide, and possibly a liquid that does not dissolve wood pulp and is miscible with the tertiary amine oxide, the solution capable of being shaped into objects, the process of producing the shapeable solution employing a first wood pulp with a higher degree of polymerization and a second wood pulp with a lower degree of polymerization, and whereby initially a solution of the first wood pulp with a higher degree of polymerization in the tertiary amine oxide and possibly non-dissolving liquid, and a composition containing the second wood pulp with a lower degree of polymerization, tertiary amine oxide, and possibly non-dissolving liquid, are prepared separately, and the solution and composition are subsequently at least mixed to obtain the shapeable solution.
    • 用于生产纤维素形物体的方法包括将化学木浆的溶液挤出和凝结在叔胺氧化物中,并且可能的是不溶解木浆的液体,并且可与叔胺氧化物混溶,该溶液能够成形为物体 使用具有较高聚合度的第一木浆和具有较低聚合度的第二木浆生产可成形溶液的方法,并且由此最初在第三级中具有较高聚合度的第一木浆的溶液 氧化胺和可能不溶解的液体,并且分别制备含有聚合度较低的第二木浆,叔胺氧化物和可能不溶解的液体的组合物,然后将溶液和组合物至少混合 获得可塑的解决方案。
    • 3. 发明授权
    • Process for producing cellulosic moldings
    • 生产纤维素模制品的方法
    • US5891370A
    • 1999-04-06
    • US860009
    • 1997-06-16
    • Hans-Georg ConnorDerek Budgell
    • Hans-Georg ConnorDerek Budgell
    • B01D71/10C08J5/18C08L1/02D01F2/00D01F11/02D01F13/02D01D1/10D01F2/02D01F13/00
    • C08J5/18D01F13/02D01F2/00C08J2301/02Y02P70/627
    • A process for manufacturing formed objects such as fibers, filaments, yarns, films, membranes in form of flat membranes, hose membranes and hollow fiber membranes and the like, involves pressing cellulose solutions in an amine oxide of a tertiary amine and if necessary water, in particular in N-methylmorpholine-N-oxide and water, through a nozzle and precipitating the solutions in a coagulation bath and washing the formed objects obtained. The coagulation bath liquid and the washing water is processed, if necessary, for recovery of the amine oxide of the tertiary amine. Hydrogen peroxide, peroxyethanoic acid, ozone or chlorine dioxide is added to the coagulation bath and/or the washing water. The substances added can preferably be decomposed catalytically or by enzymes prior to the recovery process of the water and the solvent.
    • PCT No.PCT / EP95 / 04873 Sec。 371日期:1997年6月16日 102(e)日期1997年6月16日PCT提交1995年12月11日PCT公布。 WO96 / 18761 PCT出版物 日期1996年6月20日制造诸如纤维,细丝,纱线,膜,平膜形式的膜,软管膜和中空纤维膜等成形物体的方法涉及将纤维素溶液压在叔胺氧化胺 如果需要的话,特别是在N-甲基吗啉-N-氧化物和水中,通过喷嘴,并将溶液沉淀在凝固浴中并洗涤所形成的物体。 如果需要,将凝固浴液和洗涤水加工以回收叔胺的氧化胺。 将过氧化氢,过氧乙酸,臭氧或二氧化氯加入到凝固浴和/或洗涤水中。 添加的物质可以优选在水和溶剂的回收过程之前被催化分解或通过酶分解。