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138 条记录 (耗时 0.015 秒)

    Apparatus and Method for Producing Electrospun Fibers
    92.
    发明申请
    Apparatus and Method for Producing Electrospun Fibers 审中-公开
    用于生产电纺纤维的装置和方法

    公开(公告)号：US20080296808A1

    公开(公告)日：2008-12-04

    申请号：US11748958

    申请日：2007-05-15

    申请人： Yong Lak Joo ,  Dae-Sik Kim

    发明人： Yong Lak Joo ,  Dae-Sik Kim

    IPC分类号： D01D5/06

    CPC分类号： D01D5/0046 ,  D01D5/0076 ,  D01F2/02

    摘要： An apparatus for making electrspun fibers comprises a collector that may be submerged in a coagulation bath. The collector may be automatically movable between a first position and a second position, wherein at least a portion of the collected fibers are submerged in a coagulation bath in the first position and spaced apart from the coagulation bath in the second position. The collector may be a rotating collector. A process for making electrospun fibers comprises electrospinning a dispersion and collecting a plurality of electrospun fibers, followed by submerging the collected fibers in a coagulation bath.

    摘要翻译： 用于制造电纺纤维的装置包括可以浸没在凝固浴中的收集器。 收集器可以在第一位置和第二位置之间自动移动，其中收集的纤维的至少一部分浸没在第一位置的凝固浴中并且在第二位置与凝固浴间隔开。 收集器可以是旋转收集器。 制造电纺纤维的方法包括静电纺丝分散体并收集多个电纺纤维，然后将收集的纤维浸入凝固浴中。

    Thermoplastic composition and products made therefrom
    93.
    发明申请
    Thermoplastic composition and products made therefrom 审中-公开
    热塑性组合物及由其制成的产品

    公开(公告)号：US20050148922A1

    公开(公告)日：2005-07-07

    申请号：US10750258

    申请日：2003-12-31

    申请人： William Reeves ,  Li Chen

    发明人： William Reeves ,  Li Chen

    IPC分类号： A61F13/00 ,  C08B1/00 ,  C08L5/00 ,  D01D1/02 ,  D01F2/02 ,  D04H1/56 ,  D04H3/16

    CPC分类号： D04H3/16 ,  C08B1/003 ,  C08L5/00 ,  D01D1/02 ,  D01F2/02 ,  D04H1/56

    摘要： The present invention provides for a thermoplastic composition formed form at least one carbohydrate dissolved in at least one solvent at a sufficiently high concentration of carbohydrate, and a method of making the same. The thermoplastic composition can be made into products that are soft or firm, absorbent or non-absorbent, and hydrophobic or hydrophilic without the addition of wetting agents.

    摘要翻译： 本发明提供一种热塑性组合物及其制备方法，该热塑性组合物由至少一种在足够高浓度碳水化合物溶解于至少一种溶剂中的碳水化合物形成。 热塑性组合物可以制成柔软或牢固，吸收性或非吸收性，疏水性或亲水性的产品，而不加入润湿剂。

    AQUEOUS COAGULATING AGENT FOR LIQUID-CRYSTAL SOLUTIONS WITH BASE OF CELLULOSE MATERIALS
    95.
    发明申请
    AQUEOUS COAGULATING AGENT FOR LIQUID-CRYSTAL SOLUTIONS WITH BASE OF CELLULOSE MATERIALS 有权
    水性溶液用水性溶剂与基质纤维素材料

    公开(公告)号：US20020040747A1

    公开(公告)日：2002-04-11

    申请号：US09294216

    申请日：1999-04-16

    发明人： JEAN-PAUL MERALDI ,  RIMA HUSTON ,  VLASTIMIL CIZEK

    IPC分类号： D06M010/00 ,  C08B001/00

    CPC分类号： D01F2/02 ,  D01F2/00 ,  D01F2/28 ,  Y10T152/10 ,  Y10T428/2913 ,  Y10T428/2965

    摘要： The invention concerns a coagulating agent for liquid crystal solutions with a base of cellulose substances, characterized in that it contains at least one water soluble additive selected from the group consisting of ammonia, amines of salt of these compounds, the additive being such that the pH of the said coagulating agent is greater than 6. A preferable additive is a salt selected from the group consisting of ammonium formates, acetates and phosphates, mixed salts of these compounds, or mixtures of these constituents, in particular diammonium orthophosphates (NH4) 2 HPO4. The invention also concerns a method for spinning a liquid crystal solution with a base of cellulose substances, using a coagulating agent as per the invention, in particular the method called nulldry-jet-wet-spinningnull as well as spun articles, fibers or films, obtained by these methods. The invention further concerns a cellulose fiber having toughness higher than 40 cN/tex, an initial modulus of elasticity higher than 1200 cN/tex and high fatigue strength: its breaking load degeneration &Dgr;F after 350 fatigue cycles in the so-called nullspecimen testnull, under a compression rate of 3.5% and a tensile stress of 0.25 cN/tex, is less than 30%.

    摘要翻译： 本发明涉及一种具有纤维素物质基质的液晶溶液凝结剂，其特征在于，其含有至少一种选自氨，这些化合物的盐的胺的水溶性添加剂，添加剂使得pH 优选的添加剂是选自甲酸铵，乙酸盐和磷酸盐的盐，这些化合物的混合盐，或这些组分的混合物，特别是正磷酸二铵（NH 4）2 HPO 4 。 本发明还涉及使用根据本发明的凝结剂，特别是称为“干喷雾 - 湿纺丝”的方法以及纺丝制品，纤维或纤维素纤维素的纤维素物质的基底纺丝液晶溶液的方法 通过这些方法获得的电影。 本发明还涉及韧性高于40cN / tex，初始弹性模量高于1200cN / tex的纤维素纤维和高疲劳强度：在所谓的“试样中的350次疲劳循环之后的断裂负荷变性＆Dgr; F” 试验“，压缩率为3.5％，拉伸应力为0.25cN / tex，小于30％。

    Process for producing cellulosic mouldings
    96.
    发明授权
    Process for producing cellulosic mouldings 失效
    生产纤维素模制品的方法

    公开(公告)号：US6106763A

    公开(公告)日：2000-08-22

    申请号：US192772

    申请日：1998-11-16

    申请人： Henryk Struszczyk ,  Dariusz Wawro ,  Pawel Starostka ,  Wlodzimierz Mikolajczyk ,  Alojzy Urbanowski

    发明人： Henryk Struszczyk ,  Dariusz Wawro ,  Pawel Starostka ,  Wlodzimierz Mikolajczyk ,  Alojzy Urbanowski

    IPC分类号： A22C13/00 ,  C08B1/00 ,  D01F2/02 ,  B29C55/28 ,  D01F2/00

    CPC分类号： C08B1/003 ,  A22C13/0013 ,  D01F2/02

    摘要： Process for producing cellulosic moldings such as fibers, foils, casings and beads from cellulose, wherein (a) the initial cellulose is hydrothermally treated with water in a water/cellulose ratio on a weight basis of at least 1 at a temperature in the range from about 100.degree. to about 200.degree. C. and under a pressure in the range from 0.1 to about 1.5 MPa; (b) the treated cellulose is dissolved in an aqueous solution of alkali hydroxide at a temperature of at least 0.degree. C. to form a homogenous cellulose solution containing from about 5% to about 10% by weight cellulose and at maximum 10% by weight alkali hydroxide, and (c) the alkaline cellulose solution is formed and coagulated by contacting it with an aqueous solution containing 1 to about 30% by weight of an acid. This fully ecological process avoids handling of toxic products or by-products and uses aqueous solvents instead of expensive organic solvents. The cellulose solution is stable for at least 48 hours.

    摘要翻译： 用于从纤维素生产纤维素模制品如纤维，箔，肠衣和珠粒的方法，其中（a）将初始纤维素在水/纤维素比中用水进行水热处理，重量基于至少1，温度范围为 约100至约200℃，压力范围为0.1至约1.5MPa; （b）将经处理的纤维素在至少0℃的温度下溶解在碱金属氢氧化物水溶液中以形成含有约5％至约10％重量的纤维素和最多10％重量的均匀纤维素溶液 碱性氢氧化物，和（c）通过使碱性纤维素溶液与含有1至约30重量％的酸的水溶液接触而形成和凝结。 这种完全生态的过程避免了处理有毒产品或副产物，并使用水性溶剂而不是昂贵的有机溶剂。 纤维素溶液稳定至少48小时。

    Cellulose fibres and filaments having a high elongation at break
    97.
    发明授权
    Cellulose fibres and filaments having a high elongation at break 失效
    具有高断裂伸长率的纤维素纤维和长丝

    公开(公告)号：US6068919A

    公开(公告)日：2000-05-30

    申请号：US125351

    申请日：1998-08-25

    申请人： Marco Ypma ,  Jan Barend Westerink ,  Hendrik Maatman ,  Hanneke Boerstoel ,  Jannes Veurink

    发明人： Marco Ypma ,  Jan Barend Westerink ,  Hendrik Maatman ,  Hanneke Boerstoel ,  Jannes Veurink

    IPC分类号： D01F2/02 ,  D01F11/02 ,  D21B1/00

    CPC分类号： D01F2/02 ,  Y10T428/2913 ,  Y10T428/2965

    摘要： Cellulose fibres and filaments are prepared from a spinnable, cellulose-containing solution containing 94-100 wt. % cellulose, water, and phosphoric acid and/or anhydrides of phosphoric acid. The resulting cellulose fibres and filaments have an elongation break point greater than 7%. The cellulose-containing solution used to prepare the fibres and filaments may be either isotropic or anisotropic. The cellulose-containing solution is coagulated in a liquid containing water and cations, and the cations are preferably monovalent. Fibres and filaments prepared in this manner are especially suitable for use in textiles.

    摘要翻译： PCT No.PCT / EP97 / 00693 Sec。 371日期：1998年8月25日 102（e）日期1998年8月25日PCT提交1997年2月13日PCT公布。 公开号WO97 / 30198 PCT 日期1997年8月21日纤维素纤维和长丝由可旋转的含纤维素的溶液制备，该溶液含有94-100wt。 ％的纤维素，水和磷酸和/或磷酸的酸酐。 得到的纤维素纤维和长丝的伸长断裂点大于7％。 用于制备纤维和长丝的含纤维素溶液可以是各向同性的或各向异性的。 含有纤维素的溶液在含有水和阳离子的液体中凝结，阳离子优选为一价。 以这种方式制备的纤维和长丝尤其适用于纺织品。