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    Optically anisotropic carbonaceous pitch
    11.
    发明授权
    Optically anisotropic carbonaceous pitch 失效
    光学各向异性碳质沥青

    公开(公告)号：US4655902A

    公开(公告)日：1987-04-07

    申请号：US772069

    申请日：1985-09-03

    Applicant: Takayuki Izumi ,  Tsutomu Naito ,  Masuo Shinya ,  Tomio Nomura

    Inventor： Takayuki Izumi ,  Tsutomu Naito ,  Masuo Shinya ,  Tomio Nomura

    IPC: C10C3/00 ,  D01F9/155 ,  C01C3/00 ,  D01F9/12 ,  D01F9/20

    CPC classification number: C10C3/002 ,  D01F9/155

    Abstract: In a process for producing an optically anisotropic carbonaceous pitch having a low softening point for the production of carbon material starting oil to be used is a tar-like substance which is a mixture of compounds not substantially containing chloroform insolubles but containing components having a boiling point of 540.degree. C. or more as principal components and consisting principally of carbon and hydrogen. The tar-like substance has a content of n-heptane insolubles of up to 1 wt % and contains an aromatic oil fraction and a resin fraction as the principal components of n-heptane soluble components. The aromatic carbon fraction, fa, is at least 0.7, the number-average molecular weight is up to 1,000 and the maximum molecular weight is up to 2,000 for each of the aromatic oil and resin fractions.

    Abstract translation: 在用于生产碳原料起始油的软化点的光学各向异性碳质沥青的制造方法中，作为不含氯仿不溶物但含有沸点成分的化合物的混合物的焦油状物质 540℃以上为主要成分，主要由碳和氢组成。 焦油状物质含有高达1重量％的正庚烷不溶物，含有芳香油馏分和作为正庚烷可溶成分的主要成分的树脂部分。 芳族碳分数fa至少为0.7，数均分子量高达1,000，并且对于每种芳族油和树脂级分，最大分子量达2,000。

    Process for producing optically anisotropic carbonaceous pitch
    12.
    发明授权
    Process for producing optically anisotropic carbonaceous pitch 失效
    光学各向异性碳质沥青的制备方法

    公开(公告)号：US4601813A

    公开(公告)日：1986-07-22

    申请号：US412321

    申请日：1982-08-27

    Applicant: Takayuki Izumi ,  Tsutomu Naito ,  Masuo Shinya ,  Tomio Nomura

    Inventor： Takayuki Izumi ,  Tsutomu Naito ,  Masuo Shinya ,  Tomio Nomura

    IPC: C01B31/00 ,  C08L95/00 ,  C10C3/00 ,  C10C3/02 ,  C10C3/10 ,  D01F9/155 ,  C01C3/00 ,  D01F9/12 ,  D01F9/20

    CPC classification number: D01F9/155 ,  C10C3/002

    Abstract: In a process for producing an optically anisotropic carbonaceous pitch having a low softening point for the production of carbon material a starting oil to be used is a tar-like substance which is a mixture of compounds not substantially containing chloroform insolubles but containing components having a boiling point of 540.degree. C. or more as principal components and consisting principally of carbon and hydrogen. The tar-like substance has a content of n-heptane insolubles of up to 1 wt % and contains an aromatic oil fraction and a resin fraction as the principal components of n-heptane soluble components. The aromatic carbon fraction, fa, is at least 0.7, the number-average molecular weight is up to 1,000 and the maximum molecular weight is up to 2,000 for each of the aromatic oil and resin fractions.

    Abstract translation: 在生产碳材料的软化点低的光学各向异性碳质沥青的方法中，使用的起始油是焦油状物质，其是基本上不含氯仿不溶物但含有沸点的成分的化合物的混合物 540℃以上为主要成分，主要由碳和氢组成。 焦油状物质含有高达1重量％的正庚烷不溶物，含有芳香油馏分和作为正庚烷可溶成分的主要成分的树脂部分。 芳族碳分数fa至少为0.7，数均分子量高达1,000，并且对于每种芳族油和树脂级分，最大分子量达2,000。

    Process for producing mesophase pitch
    15.
    发明授权
    Process for producing mesophase pitch 失效
    生产中间相沥青的方法

    公开(公告)号：US4533461A

    公开(公告)日：1985-08-06

    申请号：US281407

    申请日：1981-07-08

    Applicant: Takayuki Izumi ,  Tsutomu Naito ,  Seiko Igarashi

    Inventor： Takayuki Izumi ,  Tsutomu Naito ,  Seiko Igarashi

    IPC: D01F9/15 ,  C10C3/00 ,  C10C3/02 ,  C10C3/10 ,  D01F9/145 ,  D01F9/155

    CPC classification number: C10C3/002 ,  D01F9/145

    Abstract: A substantially uniform mesophase pitch is prepared by treating a mesophase forming pitch material at elevated temperatures above about 380.degree. C. to produce a mixture of mesophase and non-mesophase pitch containing about 20% to about 80% mesophase. The mixture is then maintained at a temperature below about 400.degree. C. for a time sufficient to allow the mesophase to coalesce and settle as a lower separable layer. A mesophase pitch so produced may contain from 90 to 100% mesophase with a softening point of less than 320.degree. C.

    Abstract translation: 通过在高于约380℃的高温处理中间相形成沥青材料以产生含有约20％至约80％中间相的中间相和非中间相沥青的混合物来制备基本均匀的中间相沥青。 然后将混合物保持在低于约400℃的温度下足以允许中间相聚结并作为下部可分离层沉降的时间。 如此制备的中间相沥青可以含有软化点小于320℃的90至1​​00％中间相

    Solvent dewaxing waxy hydrocarbons using an .alpha.-olefin polymer-olefin vinyl acetate copolymer composite dewaxing aid
    16.
    发明授权
    Solvent dewaxing waxy hydrocarbons using an .alpha.-olefin polymer-olefin vinyl acetate copolymer composite dewaxing aid 失效
    溶剂脱蜡蜡质烃使用α-烯烃聚合物 - 烯烃乙酸乙烯酯共聚物复合脱蜡助剂

    公开(公告)号：US4354003A

    公开(公告)日：1982-10-12

    申请号：US305919

    申请日：1981-09-28

    Applicant: Takashi Onodera ,  Kikuji Komine ,  Fumis Ohashi ,  Tsutomu Naito

    Inventor： Takashi Onodera ,  Kikuji Komine ,  Fumis Ohashi ,  Tsutomu Naito

    IPC: C10G73/04 ,  C08L23/24 ,  C08L23/08 ,  C08L31/04

    CPC classification number: C10G73/04

    Abstract: An improved dewaxing aid for solvent dewaxing process comprising a mixture of (A) an .alpha.-olefin polymer having an average molecular weight of from about 10,000 to 1,000,000 and a wide molecular weight distribution exceeding the range of from about 10,000 to 1,000,000 but falling within the range of from about 2,000 to 3,000,000 wherein the .alpha.-olefin polymer is a homopolymer made up of a C.sub.10 to C.sub.25 alpha-olefin monomer or is a copolymer made up of a monomer mixture comprising more than 50 wt. % of at least 2 C.sub.10 to C.sub.25 alpha-olefin monomers and a melt index greater than 1.8 g/10 min. and (B) an olefin vinyl acetate copolymer having a vinyl acetate content of from about 15 to 40 wt. % and an average molecular weight of from about 50,000 to 1,000,000 and a melt index greater than 2 g/10 min. The .alpha.-olefin polymer having a high molecular weight and wide molecular weight distribution, when combined with the olefin-vinyl acetate copolymer, synergistically improves the efficiency of wax separation.

    Abstract translation: 一种用于溶剂脱蜡方法的改进的脱蜡助剂，其包含（A）平均分子量为约10,000至1,000,000的α-烯烃聚合物和宽分子量分布超过约10,000至1,000,000的混合物的混合物，但属于 范围为约2,000至3,000,000，其中α-烯烃聚合物是由C10至C25α-烯烃单体组成的均聚物，或由包含大于50wt。 ％的至少2种C 10至C 25α-烯烃单体，熔体指数大于1.8克/ 10分钟。 和（B）乙酸乙烯酯含量为约15〜40重量％的烯烃乙酸乙烯酯共聚物。 ％，平均分子量为约50,000至1,000,000，熔体指数大于2g / 10min。 当与烯烃 - 乙酸乙烯酯共聚物组合时，具有高分子量和宽分子量分布的α-烯烃聚合物协同地提高了蜡分离的效率。

    High strength, high modulus pitch-based carbon fiber
    18.
    发明授权
    High strength, high modulus pitch-based carbon fiber 失效
    高强度，高模量沥青基碳纤维

    公开(公告)号：US5114697A

    公开(公告)日：1992-05-19

    申请号：US327637

    申请日：1989-03-23

    Applicant: Tsutomu Naito ,  Genshiro Nishimura ,  Kikuji Komine

    Inventor： Tsutomu Naito ,  Genshiro Nishimura ,  Kikuji Komine

    IPC: D01D4/06 ,  D01F9/14 ,  D01F9/145

    CPC classification number: D01D4/027 ,  D01F9/14 ,  D01F9/145

    Abstract: A high strength, high modulus pitch-based carbon fiber has a crystalline structure in which the presence of the (112) cross-lattice line and the resolution of the diffraction band into the (100) and (101) diffraction lines, which indicate the three-dimensional order of the crystallite of the fiber, are not recognized, and in which the orientation angle (.phi.) of X-ray structural parameter is not greater than 12.degree. and the stack height (Lc) ranges between 80 and 180 .ANG.. The carbon fiber also has a single-fiber diameter of 5 to 12 .mu.m, tensile strength not lower than 3.0 GPa, tensile elastic modulus not smaller than 500 GPa and elongation not smaller than 0.5%.

    High modulus pitch-based carbon fiber and method for preparing same
    19.
    发明授权
    High modulus pitch-based carbon fiber and method for preparing same 失效
    高模量沥青基碳纤维及其制备方法

    公开(公告)号：US4822587A

    公开(公告)日：1989-04-18

    申请号：US045835

    申请日：1987-05-01

    Applicant: Takashi Hino ,  Tsutomu Naito ,  Hiroyuki Kuroda ,  Eiki Tsushima ,  Tomio Nomura

    Inventor： Takashi Hino ,  Tsutomu Naito ,  Hiroyuki Kuroda ,  Eiki Tsushima ,  Tomio Nomura

    IPC: D01F9/145 ,  D01F9/12

    CPC classification number: D01F9/145

    Abstract: Extremely high modulus carbon fibers can be produced by carbonization at a substantially lower temperature, for example, at about 2500.degree. C. This is made possible by selectively stabilizing only an outer surface layer portion of a carbonaceous pitch-based fiber comprised mainly of optically anisotropic components, while retaining the inner portion of the fiber in a non-stabilized state and without damage to the crystallinity thereof.

    Abstract translation: 非常高模量的碳纤维可以通过在基本上较低的温度例如在约2500℃下碳化来生产。这可以通过选择性地稳定仅主要由光学各向异性的碳质沥青基纤维的外表面层部分 同时将纤维的内部部分保持在非稳定状态，而不损害其结晶度。

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