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24 条记录 (耗时 0.024 秒)

    Method of estimating location of abnormality in fluid feed pipeline network
    1.
    发明授权
    Method of estimating location of abnormality in fluid feed pipeline network 失效
    估计流体输送管网异常位置的方法

    公开(公告)号：US06912472B2

    公开(公告)日：2005-06-28

    申请号：US10430434

    申请日：2003-05-07

    申请人： Shizuo Mizushina ,  Atsushi Adachi ,  Takahiro Fujiwara

    发明人： Shizuo Mizushina ,  Atsushi Adachi ,  Takahiro Fujiwara

    IPC分类号： G01D21/00 ,  G01M3/28 ,  G06F19/00

    CPC分类号： G01M3/2807

    摘要： A method of detecting the location of a failure (e.g., a sudden leak) in a fluid pipeline network, which can be suitably used for estimation of the location of a failure in a water pipeline network, includes the steps of periodically measuring a flow rate or fluid pressure with sensors arranged at a plurality of measuring points along a pipeline in a water pipeline network; comparing a latest measured amount and a previous measured amount at each measuring point to determine if an amount of change at an arbitrary point has exceeded a predetermined value; and calculating a position at which an amount of change becomes maximum, the position being calculated from the magnitudes of the amounts of changes in respective measured values at the time of the detection. The pipeline network may be a water supply and distribution pipeline network which includes a trunk pipeline and branch pipelines.

    摘要翻译： 检测流体管线网络中可能适合用于估计水管网故障位置的故障位置（例如突然泄漏）的方法包括以下步骤：周期性地测量流量 或流体压力，其中传感器布置在沿着管道网络中的管道的多个测量点处; 比较每个测量点处的最近测量量和先前测量量，以确定任意点的变化量是否超过预定值; 以及计算变化量变得最大的位置，所述位置是根据检测时的各个测量值的变化量的大小来计算的。 管网可以是供水和配水管网，其中包括一个干线管道和分支管道。

    Water-soluble polymer and additive for paper manufacture
    3.
    发明申请
    Water-soluble polymer and additive for paper manufacture 有权
    用于造纸的水溶性聚合物和添加剂

    公开(公告)号：US20070208143A1

    公开(公告)日：2007-09-06

    申请号：US11367487

    申请日：2006-03-06

    申请人： Yoshiharu Kimura ,  Takahiro Fujiwara

    发明人： Yoshiharu Kimura ,  Takahiro Fujiwara

    IPC分类号： C08F20/56

    CPC分类号： C08F20/56 ,  C08F2/001 ,  C08F2/10 ,  C08F220/06 ,  C08F220/34 ,  C08F220/56 ,  C08F222/02 ,  C08F230/08

    摘要： The present invention provides a method for preparing a water soluble polymer, which comprises: a first step of polymerizing: (a) 60 to 99.5 mol % of at least one selected from acrylamide and methacrylamide, (b) 0.5 to 20 mol % of at least one selected from α,β-unsaturated monocarboxylic acid, α,β-unsaturated dicarboxylic acid and salts thereof, and (c) 1 to 20 mol % of at least one selected from a water soluble cationic monomer and a salt thereof, (d) 0.01 to 1 mol % of a chain transfer agent, and (e) 0.005 to 5 mol % of a crosslinkable monomer, in the presence of a persulfate-based catalyst to obtain a prepolymer; and a second step of further adding the persulfate-based catalyst to the prepolymer obtained in the first step and the residual monomer, followed by the polymerization and termination of the polymerization. Consequently, it is made possible to suppress a rapid increase in viscosity during the polymerization thereby to obtain a water soluble branched polymer having high molecular weight and low viscosity.

    摘要翻译： 本发明提供一种制备水溶性聚合物的方法，其包括：聚合的第一步骤：（a）60至99.5mol％的选自丙烯酰胺和甲基丙烯酰胺的至少一种，（b）0.5至20mol％的 选自α，β-不饱和一元羧酸，α，β-不饱和二羧酸及其盐中的至少一种，和（c）1〜20摩尔％的选自水溶性阳离子单体及其盐中的至少一种，（d ）0.01〜1摩尔％的链转移剂，（e）0.005〜5摩尔％的交联性单体，在过硫酸盐系催化剂存在下，得到预聚物; 以及将第一步骤中得到的预聚物和残留单体进一步添加过硫酸盐系催化剂，然后聚合并终止聚合的第二工序。 因此，可以抑制聚合期间的粘度的快速增加，从而得到具有高分子量和低粘度的水溶性支链聚合物。

    Papermaking internal sizing agent and use thereof
    6.
    发明授权
    Papermaking internal sizing agent and use thereof 有权
    造纸内部施胶剂及其用途

    公开(公告)号：US08241462B2

    公开(公告)日：2012-08-14

    申请号：US12670186

    申请日：2008-03-06

    申请人： Kazunari Sakai ,  Takahiro Fujiwara ,  Kazushige Inaoka ,  Takashi Yamaguchi ,  Masaki Ito ,  Yasunobu Ooka

    发明人： Kazunari Sakai ,  Takahiro Fujiwara ,  Kazushige Inaoka ,  Takashi Yamaguchi ,  Masaki Ito ,  Yasunobu Ooka

    IPC分类号： D21H17/37 ,  D21H17/41 ,  D21H17/42 ,  D21H17/43 ,  D21H17/44 ,  D21H17/45

    CPC分类号： D21H21/16 ,  D21H17/41 ,  D21H17/455 ,  D21H17/675

    摘要： To provide a papermaking internal sizing agent capable of efficiently imparting sizing performance even in neutral papermaking which uses calcium carbonate as filler, and uses no aluminum sulfate or uses a small amount of aluminum sulfate, and also provide a paper or a paperboard obtained by using the papermaking internal sizing agent. The papermaking internal sizing agent comprises as an effective ingredient an amphoteric copolymer having hydrophobic groups and cationic groups, at least a part of the cationic groups being quaternized. Preferably, the amphoteric copolymer is obtained by polymerizing monomer ingredients that it essentially contain a hydrophobic monomer (A), a cationic monomer (B), and an anionic monomer (C) and that an anion equivalent of the monomer (C) is 0.1 to 90% of a cation equivalent of the monomer (B), in which a rate of quaternizing of the cationic groups is not less than 40% by mole. The paper or the paperboard contains the above papermaking internal sizing agent.

    摘要翻译： 提供即使在使用碳酸钙作为填料的中性造纸中也能有效赋予施胶性能，不使用硫酸铝或使用少量硫酸铝的造纸内施胶剂，并且还提供通过使用碳酸钙作为填料获得的纸或纸板 造纸内部施胶剂。 造纸内部施胶剂包括具有疏水基团和阳离子基团的两性共聚物作为有效成分，至少一部分阳离子基团被季铵化。 优选地，两性共聚物通过使其基本上含有疏水单体（A），阳离子单体（B）和阴离子单体（C）的单体成分聚合而获得，并且单体（C）的阴离子当量为0.1〜 单体（B）的阳离子当量的90％，其中阳离子基团的季铵化率不低于40摩尔％。 纸或纸板包含上述造纸内部施胶剂。

    Method for producing a ruthenium complex
    7.
    发明授权
    Method for producing a ruthenium complex 有权
    钌络合物的制造方法

    公开(公告)号：US07964744B2

    公开(公告)日：2011-06-21

    申请号：US12540794

    申请日：2009-08-13

    申请人： Hideki Nara ,  Noboru Sayo ,  Takahiro Fujiwara

    发明人： Hideki Nara ,  Noboru Sayo ,  Takahiro Fujiwara

    IPC分类号： C07F15/00

    CPC分类号： C07F15/0053

    摘要： Provided is a method for producing a ruthenium complex comprises the step of reacting a ruthenium compound represented by general formula (1): [RuX(L)(PP)]X  (1), wherein Ru represents a ruthenium atom; X represents a halogen atom; L represents an arene; and PP represents an optically active bisphosphine, with a carboxylate salt represented by general formula (2): R1CO2M  (2), wherein M represents a monovalent cation; and R1 represents a group selected from the group consisting of alkyl groups, haloalkyl groups, phenyl groups optionally having a substituent(s), 1-aminoalkyl groups and 1-amino-1-phenylalkyl groups, to produce a ruthenium complex represented by general formula (3): Ru(OCOR1)2(PP)  (3), wherein R1 represents the group selected from the group consisting of alkyl groups, haloalkyl groups, phenyl groups optionally having a substituent(s), 1-aminoalkyl groups and 1-amino-1-phenylalkyl groups; and PP represents the optically active bisphosphine.

    摘要翻译： 提供一种制备钌络合物的方法，包括使通式（1）表示的钌化合物：[RuX（L）（PP）] X（1），其中Ru表示钌原子; X表示卤原子; L代表芳烃; 和PP代表光学活性双膦，与通式（2）表示的羧酸盐：R1CO2M（2），其中M表示一价阳离子; 并且R 1表示选自烷基，卤代烷基，任选具有取代基的苯基，1-氨基烷基和1-氨基-1-苯基烷基的基团，以制备由通式 （3）：Ru（OCOR1）2（PP）（3），其中R1表示选自烷基，卤代烷基，任选具有取代基的苯基，1-氨基烷基和1- 氨基-1-苯基烷基; PP代表光学活性双膦。

    Substituted optically active disphosphine compound
    8.
    发明申请
    Substituted optically active disphosphine compound 有权
    取代的光学活性分膦化合物

    公开(公告)号：US20070073065A1

    公开(公告)日：2007-03-29

    申请号：US11526252

    申请日：2006-09-22

    申请人： Takahiro Fujiwara ,  Tohru Yokozawa

    发明人： Takahiro Fujiwara ,  Tohru Yokozawa

    IPC分类号： C07F9/655

    CPC分类号： C07F9/65517

    摘要： Provided is a method for producing an optically active compound, in more detail, for producing an optically active compound by asymmetric hydrogenation in a high yield and asymmetric yield. The present invention also provides a catalyst for asymmetric synthesis for the above production method, especially a catalyst for asymmetric hydrogenation, containing a transition metal complex. Further, the present invention provides a new diphosphine compound useful as a ligand of the above transition metal complex and a new transition metal complex containing the above diphosphine compound. The present invention relates to a diphosphine compound represented by the following formula (1): a transition metal complex using the compound, a catalyst for asymmetric synthesis comprising the above transition metal complex and a method for producing an optically active compound using the above catalyst for asymmetric synthesis.

    摘要翻译： 本发明提供了一种光学活性化合物的制造方法，更详细地说，通过不对称氢化以高收率和不对称的收率制造光学活性化合物。 本发明还提供了用于上述制备方法的不对称合成催化剂，特别是含有过渡金属络合物的不对称氢化催化剂。 此外，本发明提供了可用作上述过渡金属配合物的配体的新的二膦化合物和含有上述二膦化合物的新的过渡金属络合物。 本发明涉及由下式（1）表示的二膦化合物：使用该化合物的过渡金属络合物，包含上述过渡金属配合物的不对称合成催化剂和使用上述催化剂制备光学活性化合物的方法 不对称合成。