Process of making cellulose moldings and fibers
    2.
    发明授权
    Process of making cellulose moldings and fibers 失效
    制造纤维素模制品和纤维的工艺

    公开(公告)号:US5968434A

    公开(公告)日:1999-10-19

    申请号:US95340

    申请日:1998-06-10

    摘要: To prepare cellulose mouldings, a solution of cellulose in a tertiary amine-oxide is moulded in a hot state and the moulded solution is introduced into a precipitation bath in order to precipitate the contained cellulose, wherein the hot moulded solution is cooled before introduction into the precipitation bath. Cooling occurs immediately after the moulding process and preferably consists of blowing air horizontally on to the cellulose moulding. The process according to the invention allows spinning of the cellulose solution with a high fiber density without the spun fibers sticking together after emerging from the spinneret. In spite of the high fiber density, it furthermore allows the use of a long air gap between the spinneret and the precipitation bath, by which means sufficient time is generated in the spinning process to affect the textile properties of the fibers by drawing at the die (FIG. 1).

    摘要翻译: 为了制备纤维素模制品,将纤维素在叔胺氧化物中的溶液模塑成热状态,并将模塑溶液引入沉淀槽中以沉淀所含的纤维素,其中将热模制溶液冷却,然后引入 沉淀浴 在模制过程之后立即进行冷却,并且优选地将空气水平地吹到纤维素模塑件上。 根据本发明的方法允许纤维素溶液以高纤维密度纺丝,而纺丝纤维在从喷丝头出来之后粘在一起。 尽管纤维密度高,但是它还允许在喷丝头和沉淀浴之间使用长的气隙,这就意味着在纺丝过程中产生足够的时间以通过在模具中拉伸来影响纤维的纺织性能 (图。1)。

    Process of and apparatus for making cellulose mouldings
    3.
    发明授权
    Process of and apparatus for making cellulose mouldings 失效
    制造纤维素模制品的方法和设备

    公开(公告)号:US5589125A

    公开(公告)日:1996-12-31

    申请号:US142313

    申请日:1993-11-16

    摘要: To prepare cellulose mouldings, a solution of cellulose in a tertiary amine-oxide is moulded in a hot state and the moulded solution is introduced into a precipitation bath in order to precipitate the contained cellulose, wherein the hot moulded solution is cooled before introduction into the precipitation bath. Cooling occurs immediately after the moulding process and preferably consists of blowing air horizontally on to the cellulose moulding. The process according to the invention allows spinning of the cellulose solution with a high fibre density without the spun fibres sticking together after emerging from the spinneret. In spite of the high fibre density, it furthermore allows the use of a long air gap between the spinneret and the precipitation bath, by which means sufficient time is generated in the spinning process to affect the textile properties of the fibres by drawing at the die.

    摘要翻译: PCT No.PCT / AT93 / 00053 Sec。 371日期:1993年11月16日 102(e)日期1993年11月16日PCT 1993年3月17日PCT公布。 公开号WO93 / 19230 PCT 日期1993年9月30日为了制备纤维素模制品,将纤维素在叔胺氧化物中的溶液模塑成热状态,并将模塑溶液引入沉淀槽中以沉淀所含的纤维素,其中热模塑溶液为 在引入沉淀浴前冷却。 在模制过程之后立即进行冷却,并且优选地将空气水平地吹到纤维素模塑件上。 根据本发明的方法允许纤维素溶液以高纤维密度纺丝,而纺丝纤维在从喷丝头出来之后粘合在一起。 尽管纤维密度高,但是它还允许在喷丝头和沉淀浴之间使用长的气隙,这就意味着在纺丝过程中产生足够的时间以通过在模具中拉伸来影响纤维的纺织性能 。

    Process for manufacturing cellulose moulded bodies
    4.
    发明授权
    Process for manufacturing cellulose moulded bodies 失效
    纤维素成型体的制造方法

    公开(公告)号:US5827463A

    公开(公告)日:1998-10-27

    申请号:US633754

    申请日:1996-06-21

    申请人: Hartmut Ruf

    发明人: Hartmut Ruf

    IPC分类号: D01F2/00 D01F2/02

    CPC分类号: D01F2/00

    摘要: The disclosure describes a process for the manufacture of cellulosic moulded bodies in which cellulose is dissolved in a mixture of a tertiary amine oxide and a non-solvent for cellulose, e.g. water. The solution is extruded via a moulding tool and the filaments received are led via an air gap to a precipitation bath whilst being drawn. The process is characterised in that the precipitation bath substantially comprises a non-aqueous solvent for the tertiary amine oxide, whereby the molecular weight of the non-aqueous solvent is larger than that of the tertiary amine oxide. In this manner, solvent-spun fibers with a lower fibrillation tendency can be obtained. Polyethylene glycols are preferably used.

    摘要翻译: PCT No.PCT / AT95 / 00174 Sec。 371日期:1996年6月21日 102(e)日期1996年6月21日PCT提交1995年9月4日PCT公布。 出版物WO96 / 07779 日期:1996年3月14日本公开内容描述了一种制造纤维素成型体的方法,其中纤维素溶解在叔胺氧化物和纤维素的非溶剂的混合物中,例如纤维素。 水。 该溶液通过模制工具挤出,所接收的长丝在拉伸时通过气隙引导至沉淀浴。 该方法的特征在于沉淀浴基本上包含用于叔胺氧化物的非水溶剂,由此非水溶剂的分子量大于叔胺氧化物的分子量。 以这种方式,可以获得具有较低原纤维倾向的溶剂纺丝纤维。 优选使用聚乙二醇。

    Regenerated cellulose incorporating phosphorus compounds so as to be
flame-retardant
    5.
    发明授权
    Regenerated cellulose incorporating phosphorus compounds so as to be flame-retardant 失效
    再生纤维素掺入磷化合物以阻燃

    公开(公告)号:US6130327A

    公开(公告)日:2000-10-10

    申请号:US973611

    申请日:1998-03-23

    摘要: The invention relates to flame-retardant regenerated celluloses which contain at least one compound of formula I: ##STR1## The subject matter of the invention is also the use of compounds of formula I as a flame-retardant agent especially for regenerated celluloses and a process for the flame-retardant finishing of regenerated cellulose which is characterized by mixing in compounds of formula I or a dispersion containing one of these compounds.

    摘要翻译: PCT No.PCT / EP96 / 02945 Sec。 371日期:1998年3月23日 102(e)1998年3月23日PCT PCT 1996年7月4日PCT公布。 出版物WO97 / 02315 日期1997年1月23日本发明涉及含有至少一种式I化合物的阻燃再生纤维素:本发明的主题还是式I化合物作为阻燃剂的用途,特别是对于再生纤维素和 一种再生纤维素的阻燃整理方法,其特征在于在式I化合物或含有这些化合物之一的分散体中混合。

    Process for the manufacture of cellulose fibres
    6.
    发明授权
    Process for the manufacture of cellulose fibres 失效
    制造纤维素纤维的方法

    公开(公告)号:US5863478A

    公开(公告)日:1999-01-26

    申请号:US930132

    申请日:1997-10-30

    IPC分类号: D01F2/00 D01F2/02

    CPC分类号: D01F2/00

    摘要: The invention is concerned with a process for the production of cellulose fibers wherein a solution of cellulose in a tertiary amine-oxide is extruded through spinning holes of a spinneret, whereby filaments are extruded, the extruded filaments are conducted across an air gap, a precipitation bath and a drawing device whereby the filaments are drawn, the drawn filaments are further processed into cellulose fibers, the drawn filaments being exposed during further processing to a tensile stress in longitudinal direction not exceeding 5.5 cN/tex.

    摘要翻译: PCT No.PCT / AT97 / 00041 Sec。 371 1997年10月30日第 102(e)1997年10月30日PCT 1997年3月3日PCT公布。 公开号WO97 / 33020 日期1997年9月12日本发明涉及纤维素纤维的制造方法,其中将纤维素在叔胺氧化物中的溶液通过喷丝头的喷丝孔挤出,由此挤出长丝,将挤出的长丝穿过 空气间隙,沉淀浴和拉丝装置,拉伸长丝,拉伸长丝进一步加工成纤维素纤维,拉伸长丝在进一步加工过程中暴露于纵向拉伸应力不超过5.5cN / tex。

    Process for the production of cellulose fibres
    9.
    发明授权
    Process for the production of cellulose fibres 失效
    生产纤维素纤维的方法

    公开(公告)号:US5601771A

    公开(公告)日:1997-02-11

    申请号:US465320

    申请日:1995-06-05

    申请人: Hartmut Ruf

    发明人: Hartmut Ruf

    CPC分类号: D01F2/00 D01D5/06 D01D5/088

    摘要: The invention is concerned with a process for the production of cellulose fibres, wherein a solution of cellulose in an aqueous tertiary amine-oxide is extruded into filaments through spinning holes of a spinneret and the extruded filaments are conducted across an air gap into a substantially aqueous precipitation bath, characterized in that the extruded filaments, while being conducted across the air gap, are contacted with an aliphatic alcohol which is present exclusively in gaseous state. The process according to the invention produces cellulose fibres having a very reduced tendency to fibrillation.

    摘要翻译: 本发明涉及一种生产纤维素纤维的方法,其中纤维素在叔胺氧化物水溶液中的溶液通过纺丝孔的喷丝孔被挤出成长丝,并将挤出的长丝穿过气隙导入基本上水溶液 沉淀浴,其特征在于,挤出的长丝在穿过气隙的过程中与仅以气态存在的脂族醇接触。 根据本发明的方法生产纤维素纤维具有非常降低的原纤维化趋势。

    Process of making cellulose fibres
    10.
    发明授权
    Process of making cellulose fibres 失效
    制造纤维素纤维的工艺

    公开(公告)号:US5543101A

    公开(公告)日:1996-08-06

    申请号:US367260

    申请日:1995-01-04

    摘要: Disclosed is a process for producing cellulose fibers having a decreased tendency to fibrillate. The process comprises the steps of extruding a solution of cellulose in a tertiary amine-oxide through spinning holes of a spinneret to form cellulose filaments, conducting the extruded cellulose filaments across an air gap of greater than 30 mm, and introducing the cellulose filaments into a precipitation bath. The process is carried out in a way that the mathematical expression 51.4+0.033.times.D+1937.times.M.sup.2 -7.18.times.T-0.094.times.L-2.50.times.F+0.045.times.F.sup.2, does not exceed the number 10. In the mathematical expression, D is the spinning hole diameter in .mu.m, M is the dope output per hole in g/min, T is the titer of the individual filament in dtex, L is the length of the air gap in mm and F is the humidity of the air in the air gap in g of water/kg of air.

    摘要翻译: PCT No.PCT / AT94 / 00087 Sec。 371日期1995年1月4日 102(e)1995年1月4日PCT PCT 1994年7月8日PCT公布。 第WO95 / 02082号公报 日期1995年1月19日公开是一种生产纤维素纤维倾向降低的纤维素纤维的方法。 该方法包括以下步骤:通过喷丝头的喷丝孔将纤维素溶解在叔胺氧化物中以形成纤维素长丝,将挤出的纤维素丝穿过大于30mm的气隙,并将纤维素丝导入 沉淀浴 该过程以数学表达式51.4 + 0.033xD + 1937xM2 -7.18xT-0.094xL-2.50xF + 0.045xF2不超过数字10的方式进行。在数学表达式中,D是旋转孔直径 m,M是每孔的涂料输出,单位为g / min,T为单丝的滴度,单位为dtex,L为气隙长度,单位为mm,F为气隙中空气的湿度,单位:g 的水/ kg空气。