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    • 4. 发明专利
    • Carbon fiber and method for producing the same
    • 碳纤维及其制造方法
    • JP2006183173A
    • 2006-07-13
    • JP2004377190
    • 2004-12-27
    • Mitsubishi Rayon Co Ltd三菱レイヨン株式会社
    • IWAMOTO MASAKOIZUMI JINKOKOTANI TOMOYUKI
    • D06M10/00D01F9/22D06M11/58
    • PROBLEM TO BE SOLVED: To provide an inexpensive carbon fiber having high strong expression as a composite material as an aircraft application, especially having a high CAI value according to the SACMA method, and having good reproducibility in CAI strength expression according to the SACMA method by elucidating relation between surface oxygen/nitrogen concentrations and nitrogen peak half value and a nitrogen peak shape, the CAI value according to the SACMA method and its dispersion, and a method for producing the same.
      SOLUTION: The carbon fiber has 0.01-0.3 N
      1S /C
      1S : nitrogen concentration on the surface of the carbon fiber, 2-4eV N
      1S peak half value and 0.04-0.2 O
      1S /C
      1S : oxygen concentration on the surface of the carbon fiber, measured by X ray photoelectron spectroscopy and 1-1.028 specific area of the carbon fiber measured by scanning probe microscope.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了提供作为飞机应用的复合材料具有高强表现的便宜的碳纤维,特别是根据SACMA方法具有高的CAI值,并且根据所述的CAI强度表达具有良好的再现性 SACMA方法通过阐明表面氧/氮浓度与氮峰值半值和氮峰形状之间的关系,根据SACMA方法的CAI值及其分散性及其制备方法。 解决方案:碳纤维具有0.01-0.3N≤SBS / C 1S :碳纤维表面上的氮浓度,2-4eV N <1S> 峰值半值和0.04-0.2 O 1S / SB / 1S :通过X射线光电子能谱测量碳纤维表面上的氧浓度, 通过扫描探针显微镜测量的1.028比表面积的碳纤维。 版权所有(C)2006,JPO&NCIPI
    • 6. 发明专利
    • Treatment method for drying hollow fiber membrane
    • 干燥中空纤维膜的处理方法
    • JP2004353142A
    • 2004-12-16
    • JP2003154852
    • 2003-05-30
    • Toyobo Co Ltd東洋紡績株式会社
    • MORITA JUNSUKEMABUCHI KOYOKATO NORIAKI
    • A61M1/18B01D69/08D01F6/76D06M11/00D06M11/58
    • PROBLEM TO BE SOLVED: To simply and inexpensively provide hollow fiber membrane that causes minimized occurrence of eluate in the blood treatment or the like by suppressing the decomposition of polyvinylpyrrolidone (PVP) on drying, when a membrane having poor heat resistance and poor oxidation resistance, particularly polysulfone membrane including PVP that is a hydrophilic macromolecule is dried. SOLUTION: In the production of hollow fiber membrane comprising a hydrophilic polymer and a hydrophobic polymer, it has been found the thermal decomposition and the oxidative decomposition of a hydrophilic polymer, particularly PVP can be suppressed by using a gas of which oxygen content is ≤10 vol.% as a carrier gas. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:为了简单且廉价地提供中空纤维膜,其通过抑制干燥时聚乙烯吡咯烷酮(PVP)的分解而使血液处理等中的洗脱液的发生最小化,当耐热性差和差的膜 特别是包含作为亲水性大分子的PVP的聚砜膜被干燥。 解决方案:在制备包含亲水性聚合物和疏水性聚合物的中空纤维膜的过程中,发现亲水性聚合物特别是PVP的热分解和氧化分解可以通过使用含氧量 作为载气为≤10体积%。 版权所有(C)2005,JPO&NCIPI