CARBON FIBER, PROCESS FOR PRODUCTION OF POLYACRYLONITRILE-BASE PRECURSOR FIBER FOR CARBON FIBER PRODUCTION, AND PROCESS FOR PRODUCTION OF CARBON FIBER
    1.
    发明申请
    CARBON FIBER, PROCESS FOR PRODUCTION OF POLYACRYLONITRILE-BASE PRECURSOR FIBER FOR CARBON FIBER PRODUCTION, AND PROCESS FOR PRODUCTION OF CARBON FIBER 有权
    碳纤维,用于生产碳纤维生产用聚丙烯腈基前体纤维的方法,碳纤维生产方法

    公开(公告)号:US20100143713A1

    公开(公告)日:2010-06-10

    申请号:US12097277

    申请日:2006-12-06

    IPC分类号: D01F9/12 B32B5/00 B29C47/88

    摘要: A process for producing polyacrylonitrile-base precursor fibers for production of carbon fibers, which comprises spinning a spinning dope containing 10 to 25 wt % of a polyacrylonitrile-base polymer having an intrinsic viscosity of 2.0 to 10.0 by extruding the spinning dope from a spinneret by a wet spinning or a dry wet spinning method, drying and heat-treating fibers obtained by the spinning, and then steam drawing the resulting fibers, wherein the linear extrusion rate of the polyacrylonitrile-base polymer from the spinneret is 2 to 15 m/min. Carbon fibers which are produced by stabilizing-carbonizing treatment of the polyacrylonitrile-base precursor fibers and which have a strand tensile modulus of 320 to 380 GPa and a conduction electron density of 3.0×1019 to 7.0×1019 spins/g as determined by electron spin resonance.

    摘要翻译: 一种制造用于生产碳纤维的聚丙烯腈基前体纤维的方法,其包括通过将纺丝原液从喷丝头挤出而纺丝纺丝原液,该纺丝原液含有10-25重量%的特性粘度为2.0至10.0的聚丙烯腈基聚合物 湿式纺丝或干式湿式纺丝方法,通过纺丝得到的纤维的干燥和热处理,然后对所得纤维进行蒸汽拉伸,其中来自喷丝板的聚丙烯腈基聚合物的线性挤出速率为2〜15m / min 。 通过使聚丙烯腈类前体纤维进行稳定碳化处理而得到的碳纤维,其股线拉伸模量为320〜380GPa,导电电子密度为3.0×1019〜7.0×1019,通过电子自旋测定 谐振。

    Carbon fiber, process for production of polyacrylonitrile-base precursor fiber for carbon fiber production, and process for production of carbon fiber
    2.
    发明授权
    Carbon fiber, process for production of polyacrylonitrile-base precursor fiber for carbon fiber production, and process for production of carbon fiber 有权
    碳纤维,用于生产用于碳纤维生产的聚丙烯腈基前体纤维的方法,以及用于生产碳纤维的方法

    公开(公告)号:US08137810B2

    公开(公告)日:2012-03-20

    申请号:US12097277

    申请日:2006-12-06

    IPC分类号: B32B9/00 D02G3/00 D01F9/12

    摘要: A process for producing polyacrylonitrile-base precursor fibers for production of carbon fibers, which comprises spinning a spinning dope containing 10 to 25 wt % of a polyacrylonitrile-base polymer having an intrinsic viscosity of 2.0 to 10.0 by extruding the spinning dope from a spinneret by a wet spinning or a dry wet spinning method, drying and heat-treating fibers obtained by the spinning, and then steam drawing the resulting fibers, wherein the linear extrusion rate of the polyacrylonitrile-base polymer from the spinneret is 2 to 15 m/min. Carbon fibers which are produced by stabilizing-carbonizing treatment of the polyacrylonitrile-base precursor fibers and which have a strand tensile modulus of 320 to 380 GPa and a conduction electron density of 3.0×1019 to 7.0×1019 spins/g as determined by electron spin resonance.

    摘要翻译: 一种制造用于生产碳纤维的聚丙烯腈基前体纤维的方法,其包括通过将纺丝原液从喷丝头挤出而纺丝纺丝原液,该纺丝原液含有10-25重量%的特性粘度为2.0至10.0的聚丙烯腈基聚合物 湿式纺丝或干式湿式纺丝方法,通过纺丝得到的纤维的干燥和热处理,然后对所得纤维进行蒸汽拉伸,其中来自喷丝板的聚丙烯腈基聚合物的线性挤出速率为2〜15m / min 。 通过使聚丙烯腈类前体纤维进行稳定碳化处理而得到的碳纤维,其股线拉伸模量为320〜380GPa,导电电子密度为3.0×1019〜7.0×1019,通过电子自旋测定 谐振。

    PROCESSES FOR PRODUCING POLYACRYLONITRILE-BASE PRECURSOR FIBERS AND CARBON FIBERS
    3.
    发明申请
    PROCESSES FOR PRODUCING POLYACRYLONITRILE-BASE PRECURSOR FIBERS AND CARBON FIBERS 审中-公开
    生产聚丙烯腈基前体纤维和碳纤维的方法

    公开(公告)号:US20120126442A1

    公开(公告)日:2012-05-24

    申请号:US13362087

    申请日:2012-01-31

    IPC分类号: D01F9/12 D01D5/12

    摘要: A process for producing polyacrylonitrile-base precursor fibers for production of carbon fibers, which comprises spinning a spinning dope containing 10 to 25 wt % of a polyacrylonitrile-base polymer having an intrinsic viscosity of 2.0 to 10.0 by extruding the spinning dope from a spinneret by a wet spinning or a dry wet spinning method, drying and heat-treating fibers obtained by the spinning, and then steam drawing the resulting fibers, wherein the linear extrusion rate of the polyacrylonitrile-base polymer from the spinneret is 2 to 15 m/min.

    摘要翻译: 一种制造用于生产碳纤维的聚丙烯腈基前体纤维的方法,其包括通过将纺丝原液从喷丝头挤出而纺丝纺丝原液,该纺丝原液含有10-25重量%的特性粘度为2.0至10.0的聚丙烯腈基聚合物 湿式纺丝或干式湿式纺丝方法,通过纺丝得到的纤维的干燥和热处理,然后对所得纤维进行蒸汽拉伸,其中来自喷丝板的聚丙烯腈基聚合物的线性挤出速率为2〜15m / min 。

    Costas loop carrier wave reproducing circuit
    5.
    发明授权
    Costas loop carrier wave reproducing circuit 失效
    COSTAS环路载波波形再现电路

    公开(公告)号:US5086241A

    公开(公告)日:1992-02-04

    申请号:US727944

    申请日:1991-07-10

    申请人: Isao Nakayama

    发明人: Isao Nakayama

    IPC分类号: H04L27/00 H04L27/227

    摘要: A Costas loop carrier wave reproducing circuit includes a first differential amplifier circuit, a second differential amplifier circuit, a multiplying circuit, a first square circuit, a second circuit, and a double-balanced differential amplifier circuit. The first differential amplifier circuit obtains an inphase output from an inphase demodulated signal obtained by performing synchronous detection of a component inphase with a four-phase modulated wave. The second differential amplifier circuit obtains an orthogonal output from an orthogonal demodulated signal obtained by performing synchronous detection of an orthogonal component of the four-phase modulated wave. The multiplying circuit multiplies outputs from the first and second differential amplifier circuits. The first square circuit obtains a square output of an output from the first differential amplifier circuit. The second square circuit obtains a square output of an output from the second differential amplifier circuit. The double-balanced differential amplifier circuit obtains an output difference between the first and second square circuits and outputting a product of the output difference and an output from the multiplying circuit as a PLL control signal.

    Pyrimidine derivatives and a pharmaceutical composition containing them
    6.
    发明授权
    Pyrimidine derivatives and a pharmaceutical composition containing them 失效
    嘧啶衍生物和含有它们的药物组合物

    公开(公告)号:US4450162A

    公开(公告)日:1984-05-22

    申请号:US384416

    申请日:1982-06-02

    CPC分类号: C07D239/42 C07D239/70

    摘要: New 4-anilinopyrimidine derivatives of formula (I): ##STR1## (wherein: R.sup.1 and R.sup.2 are the same or different and each represents a C.sub.1 -C.sub.6 alkyl group or R.sup.1 and R.sup.2 together represent a C.sub.3 -C.sub.5 alkylene group;R.sup.3 represents a hydrogen atom or a C.sub.1 -C.sub.6 alkyl group;n is 0, 1 or 2; andR.sup.4 represents a C.sub.1 -C.sub.6 alkyl group, a C.sub.1 -C.sub.6 alkoxy group, a C.sub.1 -C.sub.6 haloalkyl group, a halogen atom, a nitro group, a C.sub.1 -C.sub.6 alkanesulphonyl group, a cyano group, a carboxy group or a C.sub.2 -C.sub.7 alkoxycarbonyl group and, when n is 2, the two groups represented by R.sup.4 may be the same or different or they may together represent a methylenedioxy group)and pharmaceutically acceptable acid addition salts thereof have been found to have strong antidepressant activity, with low toxicity and very few side-effects. The compounds may be formulated in conventional pharmaceutical compositions for administration by various routes and may be prepared by reacting a 4-halopyrimidine with aniline or an aniline derivative.

    摘要翻译: 式(I)的新的4-苯胺基嘧啶衍生物:其中:R 1和R 2相同或不同,各自表示C 1 -C 6烷基或R 1和R 2一起代表C 3 -C 5亚烷基; R3表示氢原子或C1-C6烷基; n为0,1或2; R4表示C1-C6烷基,C1-C6烷氧基,C1-C6卤代烷基,卤素原子, 硝基,C1-C6烷磺酰基,氰基,羧基或C2-C7烷氧基羰基,当n为2时,由R4表示的两个基团可以相同或不同,或者它们可以一起代表亚甲二氧基 组)及其药学上可接受的酸加成盐被发现具有强的抗抑郁活性,毒性低,副作用非常少。 化合物可以配制成用于通过各种途径给药的常规药物组合物,并且可以通过4-卤代嘧啶与苯胺或苯胺衍生物反应来制备。