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    Pitch-based carbon or graphite fiber and process for preparation thereof
    1.
    发明授权
    Pitch-based carbon or graphite fiber and process for preparation thereof 失效
    基于沥青的碳或石墨纤维及其制备方法

    公开(公告)号：US4628001A

    公开(公告)日：1986-12-09

    申请号：US719585

    申请日：1985-04-03

    申请人： Hideharu Sasaki ,  Toru Sawaki ,  Yoshiaki Yoshioka

    发明人： Hideharu Sasaki ,  Toru Sawaki ,  Yoshiaki Yoshioka

    IPC分类号： D01D5/253 ,  D01F9/00 ,  D01F9/145 ,  D02G3/00

    CPC分类号： D01F9/00 ,  D01D5/253 ,  D01F9/145 ,  Y10T428/2918 ,  Y10T428/2973 ,  Y10T428/30

    摘要： A pitch-based carbon or graphite fiber having a leafy lamella arrangement in at least 30% of the fiber cross-sectional area and having a tensile strength of at least 300 kg/mm.sup.2. The fiber is prepared by melt-spinning an optically anisotropic pitch having an optically anisotropic phase content of at least 50% through a spinneret in which at least one central line distance in a spinning hole simultaneously satisfies the following requirements I and II,Ln

    摘要翻译： 纤维横截面积至少为30％的具有叶状薄片布置并具有至少300kg / mm2的拉伸强度的沥青基碳或石墨纤维。 通过纺丝孔中的至少一个中心线距离同时满足以下要求I和II的喷丝头熔融纺丝具有至少50％的光学各向异性相含量的光学各向异性沥青，Ln <10 I 1.5其中Ln表示纺丝孔中的中心线距离（mm），Wn表示纺丝孔中的湿润周长（mm），并且使形成的沥青纤维不熔化和碳化。

    Wholly aromatic polyamide fiber non-woven sheet and processes for producing the same
    2.
    发明授权
    Wholly aromatic polyamide fiber non-woven sheet and processes for producing the same 失效
    全芳香族聚酰胺纤维无纺布片及其制造方法

    公开(公告)号：US4482603A

    公开(公告)日：1984-11-13

    申请号：US485634

    申请日：1983-04-18

    申请人： Tsugushi Yoshida ,  Hideharu Sasaki ,  Toru Sawaki ,  Keizo Shimada

    发明人： Tsugushi Yoshida ,  Hideharu Sasaki ,  Toru Sawaki ,  Keizo Shimada

    IPC分类号： D04H1/4342 ,  D04H1/552 ,  B32B27/00 ,  D02G3/00

    CPC分类号： D04H1/54 ,  Y10T428/249978 ,  Y10T428/2973 ,  Y10T442/635 ,  Y10T442/688

    摘要： A wholly aromatic polyamide fiber non-woven sheet having satisfactory density, impregnating property, heat resistance, and surface evenness, comprises mutually, randomly entangled fibers consisting essentially of a wholly aromatic polyamide having 85 molar % or more of at least one type of recurring units selected from those of the formulae (I) and (II): ##STR1## The non-woven sheet is characterized in that the wholly aromatic polyamide fibers have portions thereof having a flattened cross-sectional profile; the aromatic polyamide fibers are fuse-bonded to each other at least at portions thereof intersecting each other; and the sheet includes pores connected to each other, and having a size at the peak of pore size distribution, of 13 microns or less determined by means of a mercury porosimeter, and no voids isolated from each other, and has a porosity of from 5% to 40% and an air permeability rate of from 0.1 to 10,000 sec/100 ml.

    摘要翻译： 具有令人满意的密度，浸渍性，耐热性和表面均匀性的全芳族聚酰胺纤维无纺布片包括相互无规缠结的纤维，主要由具有85摩尔％以上的至少一种类型的重复单元的全芳香族聚酰胺 选自式（I）和（II）的那些：无纺布片的特征在于，全芳族聚酰胺纤维的部分具有扁平的横截面 简介 芳族聚酰胺纤维至少在彼此相交的部分彼此熔合结合; 并且片材包括彼此连接的孔，并且具有通过水银孔隙度计确定的13微米或更小的孔径分布峰值的尺寸，并且没有彼此分离的空隙，并且具有5的孔隙率 ％至40％，透气率为0.1至10,000秒/ 100ml。

    Pitch-based carbon fibers and pitch compositions and precursor fibers therefor
    3.
    发明授权
    Pitch-based carbon fibers and pitch compositions and precursor fibers therefor 失效
    沥青基碳纤维和沥青组合物及其前体纤维

    公开(公告)号：US4590055A

    公开(公告)日：1986-05-20

    申请号：US525702

    申请日：1983-08-23

    申请人： Yasuhiro Yamada ,  Takeshi Imamura ,  Hidemasa Honda ,  Toru Sawaki ,  Hideharu Sasaki

    发明人： Yasuhiro Yamada ,  Takeshi Imamura ,  Hidemasa Honda ,  Toru Sawaki ,  Hideharu Sasaki

    IPC分类号： C10C1/00 ,  C10C3/00 ,  D01F9/15 ,  D01F9/12

    CPC分类号： D01F9/15 ,  C10C1/00 ,  C10C3/00

    摘要： The invention provides carbon fibers having mechanical properties equival to or even better than those of the polyacrylonitrile-based carbon fibers from a bituminous material, e.g. coal tar pitch, as the starting material. The starting pitch is first partially hydrogenated in tetrahydroquinoline under specific conditions followed by a heat treatment to give a pitch composition suitable for spinning which can be characterized by several parameters including the proportions of the carbons and hydrogens having different chemical shifts in the NMR analysis. The pitch composition for spinning is then subjected to spinning under specific conditions including the temperature condition for controlling the viscosity behavior of the molten pitch composition determined by use of the Andrade's equation and the pitch filament is then infusibilized in an oxidative atmosphere and carbonized in an inert atmosphere into carbon fibers having a tensile strength of at least 200 kg/mm.sup.2 and a tensile modulus of at least 10 tons/mm.sup.2.

    摘要翻译： 本发明提供具有与来自沥青材料的聚丙烯腈基碳纤维相当或甚至更好的机械性能的碳纤维，例如沥青。 煤焦油沥青，作为原料。 起始沥青在特定条件下首先在四氢喹啉中部分氢化，接着进行热处理，得到适用于纺丝的沥青组合物，其可以通过几个参数来表征，包括在NMR分析中具有不同化学位移的碳和氢的比例。 然后将纺丝沥青组合物在特定条件下进行纺丝，包括用于通过使用安德拉德方程确定的用于控制熔融沥青组合物的粘度行为的温度条件，然后将沥青丝在氧化气氛中不熔化并以惰性碳化 气氛变成具有至少200kg / mm 2的拉伸强度和至少10吨/ mm 2的拉伸模量的碳纤维。

    Wholly aromatic halogenated polyamide fiber and film
    4.
    发明授权
    Wholly aromatic halogenated polyamide fiber and film 失效
    全芳香卤化聚酰胺纤维和薄膜

    公开(公告)号：US4507467A

    公开(公告)日：1985-03-26

    申请号：US527377

    申请日：1983-08-29

    申请人： Keizo Shimada ,  Hideharu Sasaki ,  Hiroshi Mera ,  Toru Sawaki ,  Akihiro Aoki

    发明人： Keizo Shimada ,  Hideharu Sasaki ,  Hiroshi Mera ,  Toru Sawaki ,  Akihiro Aoki

    IPC分类号： C08G69/00 ,  C08G69/32 ,  C08J5/18 ,  D01F6/80

    CPC分类号： C08J5/18 ,  C08G69/32 ,  D01F6/805 ,  C08J2377/10

    摘要： High modulus shaped articles such as fibers and films, composed of a wholly aromatic copolyamide, are provided. The wholly aromatic copolyamide is comprised of recurring units of the formulae:--NH--AR.sub.1 --NH--CO--Ar.sub.2 --CO-- (A)and--NH--Ar.sub.3 --CO-- (B)wherein Ar.sub.1, Ar.sub.2 and Ar.sub.3 independently stand for divalent groups selected from ##STR1## in which X's independently stand for a group selected from halogeno, alkyl, aralkyl, aromatic, alkoxy, acetyl and cyano, n is 1 to 3 and Y is selected from ##STR2## in which R' stands for an 1-5C alkyl group, and the copolymerization ratio expressed by the molar ratio of the total of Ar.sub.1, Ar.sub.2 and Ar.sub.3 fails within the square hatched region in a triangular coordinate of FIG. 1, and said copolyamide has an intrinsic viscosity of at least 1.5. The shaped articles are prepared by a process wherein a solution comprised of the above-defined wholly aromatic copolyamide, a halide of a metal of Group I or II of the Periodic Table and an amide type organic solvent is subjected to wet or dry shaping; and then, the shaped article is stretched at a stretch ratio of at least 1.5 at an elevated temperature.

    摘要翻译： 提供了由全芳族共聚酰胺组成的高模量成形制品如纤维和薄膜。 全芳香族共聚酰胺由下式的重复单元组成：-NH-AR1-NH-CO-Ar2-CO-（A）和-NH-Ar3-CO-（B）其中Ar1，Ar2和Ar3独立地表示二价 选自（a）（b）（c），其中X独立代表选自卤代，烷基，芳烷基，芳族，烷氧基，乙酰基和氰基的基团，n为 1〜3，Y选自其中R'表示1-5C烷基的“IMAGE”，由Ar1，Ar2和Ar3的总量的摩尔比表示的共聚比在a 图3的三角坐标。 1，所述共聚酰胺的特性粘度至少为1.5。 成型制品通过以下方法制备，其中将由上述定义的全芳族共聚酰胺，元素周期表第I族或第II族金属的卤化物和酰胺型有机溶剂组成的溶液进行湿法或干法成型; 然后，成形制品在升高的温度下以至少1.5的拉伸比拉伸。

    Method of manufacturing of pitch-base carbon fiber
    5.
    发明授权
    Method of manufacturing of pitch-base carbon fiber 失效
    沥青基碳纤维的制造方法

    公开(公告)号：US4948574A

    公开(公告)日：1990-08-14

    申请号：US351254

    申请日：1989-05-08

    申请人： Hideharu Sasaki ,  Toru Sawaki

    发明人： Hideharu Sasaki ,  Toru Sawaki

    IPC分类号： D01F9/14 ,  D01F9/145

    CPC分类号： D01F9/145

    摘要： A method of manufacture of pitch-based carbon fiber by infusibilization of pitch fiber followed by carbonization, comprising doping the pitch fiber with at least 0.05 percent by weight of iodine, heating under an oxidizing atmosphere for infusibilization, and then heating under an inert atmosphere for carbonization, whereby it is carbonized or graphitized.

    摘要翻译： 一种沥青类碳纤维的制造方法，其特征在于，沥青纤维是通过沥青纤维进行碳化处理，其中包括用至少0.05重量％的碘掺杂沥青纤维，在氧化气氛下进行加热，然后在惰性气氛下加热， 碳化，由此碳化或石墨化。

    Process for preparation of high-performance grade carbon fibers
    6.
    发明授权
    Process for preparation of high-performance grade carbon fibers 失效
    制备高性能级碳纤维的工艺

    公开(公告)号：US4840762A

    公开(公告)日：1989-06-20

    申请号：US790102

    申请日：1985-10-22

    申请人： Toru Sawaki ,  Hideharu Sasaki ,  Tsutomu Nakamura ,  Jiro Sadanobu

    发明人： Toru Sawaki ,  Hideharu Sasaki ,  Tsutomu Nakamura ,  Jiro Sadanobu

    IPC分类号： D01F9/15 ,  D01F9/155

    CPC分类号： D01F9/155 ,  D01F9/15

    摘要： A process for the preparation of high-performance grade carbon fibers, which comprises attaching a fine powder of at least one member selected from oxides and carbides of silicon, aluminum, titanium, and boron to a precursor fiber bundle of as spun pitch fibers, subjecting the fiber bundle to an infusibilization treatment, and subjecting the fiber bundle to a carbonization treatment.

    摘要翻译： 一种制备高性能级碳纤维的方法，其包括将选自硅，铝，钛和硼的氧化物和碳化物中的至少一种的细粉末附着到作为纺丝沥青纤维的前体纤维束上， 纤维束进行输注处理，对纤维束进行碳化处理。

    Aromatic polyamide paper-like sheet and processes for producing the same
    10.
    发明授权
    Aromatic polyamide paper-like sheet and processes for producing the same 失效
    芳香族聚酰胺纸状片材及其制造方法

    公开(公告)号：US4498957A

    公开(公告)日：1985-02-12

    申请号：US532304

    申请日：1983-09-15

    申请人： Hideharu Sasaki ,  Keizo Shimada

    发明人： Hideharu Sasaki ,  Keizo Shimada

    IPC分类号： D21H13/26 ,  D21H5/12

    CPC分类号： D21H13/26 ,  Y10T428/2913 ,  Y10T428/31725

    摘要： An aromatic polyamide paper-like sheet having excellent heat- and chemical- resistances and electric insulating properties, comprises an artificial pulp ingredient comprising a number of amorphous pulp particles consisting of an aromatic polyamide material, and a fiber ingredient consisting of a number of short fibers bonded to each other with the amorphous pulp particles, the ratio in weight of the artificial pulp ingredient to the fiber ingredient being in a range of from 1:9 to 9:1 and the aromatic polyamide molecules contained at least in the amorphous pulp particles being cross-linked with a cross-linking agent.

    摘要翻译： 具有优异的耐热和耐化学性和电绝缘性的芳香族聚酰胺纸状片材包括人造纸浆成分，其包含由芳族聚酰胺材料组成的许多非晶纸浆颗粒和由许多短纤维组成的纤维成分 用无定形纸浆颗粒彼此粘合，人造纸浆成分与纤维成分的重量比在1:9至9:1的范围内，并且至少在非晶纸浆颗粒中含有的芳族聚酰胺分子为 与交联剂交联。