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    Cellulose sulfate salt having anti-coagulating action and process for preparing same
    1.
    发明授权
    Cellulose sulfate salt having anti-coagulating action and process for preparing same 失效
    具有抗凝作用的硫酸纤维素盐及其制备方法

    公开(公告)号：US4389523A

    公开(公告)日：1983-06-21

    申请号：US324918

    申请日：1981-11-25

    申请人： Kunihiko Okajima ,  Kenji Kamide ,  Toshihiko Matsui

    发明人： Kunihiko Okajima ,  Kenji Kamide ,  Toshihiko Matsui

    IPC分类号： A61K31/715 ,  A61P7/02 ,  C08B5/14 ,  C08G18/10

    CPC分类号： C08B5/14

    摘要： A cellulose sulfate salt having a heparinic action is provided, which satisfies requirements of 0.8.ltoreq. >.ltoreq.2.6, >.gtoreq. > and >.gtoreq. > wherein >, > and > stand for probability of substitution of atoms H in the OH groups bonded to the C.sub.2, C.sub.3 and C.sub.6 positions of the glucopyranose ring unit by sulfuric acid radicals, respectively, and > stands for the total substitution degree which is the sum of >, > and >. The cellulose sulfate salt is prepared by reacting a cellulose having a crystal form I with an SO.sub.3 /amine or SO.sub.3 /amide complex in an amount of 2 to 4 mole equivalents per glucose unit of the cellulose at -10.degree. C. to 40.degree. C. to form a gelatinous product; adding water to the gelatinous product in an amount 0.1 to 5 times the amount of the starting cellulose used for the reaction; treating the mixture at a high temperature to relatively reduce the values of > and > among the values of >, > and >; neutralizing, precipitating and drying the so obtained crude cellulose sulfate; dissolving the crude cellulose sulfate in water again; treating the solution with an adsorbent; and subjecting the treated cellulose sulfate to precipitation, drying, re-dissolution, dialysis, precipitation and then drying.

    摘要翻译： 提供了具有肝素作用的纤维素硫酸盐，其满足0.8 >> / = << f3 >>和<< f2 >>> / = << f6 >>其中“f2”，“f3”和“f6”代表与吡喃葡萄糖环单元的C2，C3和C6位置键合的OH基团中原子H的取代概率 分别为硫酸基，“F”代表总取代度，它是“f2”，“f3”和“f6”之和。 硫酸纤维素盐是通过在-10℃至40℃下使具有结晶形式I的纤维素与SO 3 /胺或SO 3 /酰胺络合物的量相对于纤维素的每葡萄糖单位为2至4摩尔当量 形成凝胶状产品; 向凝胶状产物中加入水，其量为用于反应的起始纤维素的量的0.1至5倍; 在“f2”，“F3”和“f6”的值之间，在高温下处理混合物以相对减小<< f6 >>和<< f3 >>的值。 中和，沉淀和干燥所得粗硫酸纤维素; 再次将粗硫酸纤维素溶解在水中; 用吸附剂处理溶液; 并将经处理的硫酸纤维素进行沉淀，干燥，再溶解，透析，沉淀，然后干燥。

    Cellulose derivative excellent in liquid absorbing property, process for preparing same and structure containing same
    4.
    发明授权
    Cellulose derivative excellent in liquid absorbing property, process for preparing same and structure containing same 失效
    液体吸收性优异的纤维素衍生物，其制备方法和含有其的结构

    公开(公告)号：US4579943A

    公开(公告)日：1986-04-01

    申请号：US666445

    申请日：1984-10-30

    申请人： Kenji Kamide ,  Kunihiko Okajima

    发明人： Kenji Kamide ,  Kunihiko Okajima

    IPC分类号： A61L15/28 ,  C08B11/12 ,  C08B15/04

    CPC分类号： C08B11/12 ,  A61L15/28 ,  Y10T428/31971 ,  Y10T442/3976 ,  Y10T442/696

    摘要： Disclosed is carboxymethyl cellulose or its salt derived from cellulose having a crystal form of cellulose II, wherein the total saturation degree > represented by the following formula: >= >+ >+ >wherein >, > and > represent the probabilities of substitution of substituent groups for OH groups located at the C.sub.2, C.sub.3 and C.sub.6 positions, respectively, of the glucose ring constituting the cellulose,is in the range of from 0.10 to 0.64. This carboxymethyl cellulose or its salt is excellent in liquid absorbing property and is prepared by treating cellulose having a crystal form of cellulose II with an alkali and then reacting the treated cellulose with monochloroacetic acid or sodium monochloroacetate. This carboxymethyl cellulose or its salt can be used in the form of a structure such as a sheet, a woven fabric or a nonwoven fabric.

    摘要翻译： 公开了由具有纤维素II的结晶形式的纤维素衍生的羧甲基纤维素或其盐，其中由下式表示的总饱和度“F”：<< F >> = << f2 >> + << f3> > + << f6 >>其中“f2”，“f3”和“f6”分别代表位于C2，C3和C6位置的OH基团的取代基取代的概率 构成纤维素的葡萄糖环的范围为0.10〜0.64。 该羧甲基纤维素或其盐具有优异的液体吸收性能，并且通过用碱处理具有纤维素II结晶形式的纤维素，然后使处理的纤维素与一氯乙酸或一氯乙酸钠反应来制备。 该羧甲基纤维素或其盐可以以片状，机织织物或无纺布等结构的形式使用。

    Cellulose dope, process for preparation and method for application thereof
    5.
    发明授权
    Cellulose dope, process for preparation and method for application thereof 失效
    纤维素涂料，制备方法及其应用方法

    公开(公告)号：US4634470A

    公开(公告)日：1987-01-06

    申请号：US675762

    申请日：1984-11-28

    申请人： Kenji Kamide ,  Kunihiko Okajima

    发明人： Kenji Kamide ,  Kunihiko Okajima

    IPC分类号： D06M15/05 ,  C08B1/00 ,  C08B16/00 ,  C08L1/02 ,  D06M101/00 ,  D06M101/02 ,  D06M101/06 ,  D06M101/08 ,  D06M101/16 ,  D06M101/18 ,  D06M101/30 ,  D06M101/32 ,  D06M101/34 ,  C08L1/00

    CPC分类号： C08L1/02 ,  C08B1/00 ,  C08B16/00

    摘要： Described is a cellulose dope which is an aqueous alkali solution containing substantially at least 3% by weight of cellulose having a degree of polymerization of at least 100, wherein in the .sup.13 C-NMR spectrum of the cellulose, the C.sub.4 -position carbon peak is found at a magnetic field higher by at least 7 ppm than the magnetic field of the C.sub.4 -position carbon peak of solid cellulose attributed to the strong intramolecular hydrogen bond. This dope is prepared by maintaining a mixture comprising 100 weight parts of cellulose, which may have any crystal form, and 10 to 1000 weight parts of a hydrogen bond-cleaving solution at 100.degree. C. to 350.degree. C. under a pressure of 10 to 250 atmospheres, promptly exposing the mixture to the ambient atmosphere, mixing the resulting cellulose with an aqueous alkali solution maintained at a temperature not higher than 50.degree. C., and then stirring the mixture at a temperature not higher than 10.degree. C. to dissolve the cellulose in the aqueous alkali solution. The dope may be used for the manufacture of a shaped article or for coating.

    摘要翻译： 描述了一种纤维素涂料，其是基本上含有至少3重量％的聚合度至少为100的纤维素的碱性水溶液，其中在纤维素的13 C-NMR光谱中发现了C4位碳峰 在比由强分子内氢键归因于固体纤维素的C4位碳峰的磁场高至少7ppm的磁场。 通过在100℃至350℃的压力下保持包含100重量份可以具有任何结晶形式的纤维素和10-1000重量份氢键解链溶液的混合物来制备该涂料， 至250个大气压，迅速将混合物暴露于环境气氛下，将得到的纤维素与维持在不高于50℃的碱性水溶液混合，然后在不高于10℃的温度下搅拌混合物至 将纤维素溶解在碱性水溶液中。 涂料可用于制造成型制品或用于涂覆。

    Acrylic fiber having excellent durability and dyeability and process for preparation thereof
    6.
    发明授权
    Acrylic fiber having excellent durability and dyeability and process for preparation thereof 失效
    丙烯酸纤维具有优异的耐久性和染色性及其制备方法

    公开(公告)号：US4663232A

    公开(公告)日：1987-05-05

    申请号：US728276

    申请日：1985-04-29

    申请人： Kenji Kamide ,  Yutaka Honda ,  Shuji Kajita

    发明人： Kenji Kamide ,  Yutaka Honda ,  Shuji Kajita

    IPC分类号： D01F6/40 ,  D01D5/06 ,  D01F6/18 ,  D01F6/38 ,  D02J1/22 ,  D02G3/00

    CPC分类号： D01F6/18 ,  Y10T428/2978 ,  Y10T428/298

    摘要： Disclosed is an acrylic fiber composed of an acrylonitrile homopolymer or copolymer whose surface consists of particulate and/or microfibrillar structures having a width of 0.01 to 0.5 .mu.m and a length of 0.05 to 10 .mu.m and fibrillar structures formed by aggregation of the particulate and/or microfibrillar structures and having a width of 0.1 to 10 .mu.m and a length of at least 50 .mu.m. The fiber is prepared by spinning a dope of an acrylonitrile homopolymer or copolymer in a solvent at a draft ratio of at least 5 into a coagulating bath comprising a solvent and a coagulant and having a composition such that a skin layer is not formed on the coagulated fiber; taking up the coagulated fiber from the coagulating bath so that the retention time in the coagulating bath is within 60 seconds; and then drawing the fiber in a drawing bath comprising a solvent and a coagulant and having a coagulating property to the dope and a composition such that a skin layer is not formed on the fiber.

    摘要翻译： 公开了由丙烯腈均聚物或共聚物组成的丙烯酸纤维，其表面由宽度为0.01至0.5μm和长度为0.05至10μm的颗粒和/或微原纤维结构组成，并且通过颗粒和 /或微原纤维结构，宽度为0.1〜10μm，长度为50μm以上。 纤维通过将丙烯腈均聚物或共聚物的涂料在溶剂中以至少5的牵伸比纺丝到包含溶剂和凝结剂的凝结浴中并具有使得在凝固物上不形成表皮层的组合物来制备 纤维; 从凝固浴中吸收凝固纤维，使得凝固浴中的停留时间在60秒以内; 然后在包含溶剂和凝结剂的拉伸浴中将纤维拉伸到涂料上并具有凝胶性的组合物，使得在纤维上不形成表皮层。