利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

7 条记录 (耗时 0.022 秒)

    Fabrication of a low-loss plastic optical fiber
    1.
    发明授权
    Fabrication of a low-loss plastic optical fiber 失效
    制造低损耗塑料光纤

    公开(公告)号：US4381269A

    公开(公告)日：1983-04-26

    申请号：US316834

    申请日：1981-10-30

    申请人： Toshikuni Kaino ,  Michiya Fujiki ,  Shigeo Nara ,  Shigeru Oikawa

    发明人： Toshikuni Kaino ,  Michiya Fujiki ,  Shigeo Nara ,  Shigeru Oikawa

    IPC分类号： B29C47/00 ,  D01F8/10 ,  G02B1/04 ,  B29D11/00 ,  G02B5/14

    CPC分类号： G02B1/045 ,  B29C47/0014 ,  D01F8/10 ,  G02B1/046 ,  B29C47/00 ,  Y10T428/2907 ,  Y10T428/2929

    摘要： In a sealed system, a polymerization initiator and a chain transfer agent are added to a methyl methacrylate monomer distilled under reduced pressure condition via a distillation step of the former both ingredients, the methyl methacrylate monomer is successively polymerized to prepare a core polymer while maintaining the reduced pressure condition, then the resulting core polymer is subjected to melt spinning to form a core fiber while maintaining the sealed system, and a clad of a macromolecular compound having a refractive index lower than that of the aforesaid core fiber is adhered around the periphery thereof, whereby a low-loss plastic optical fiber with excellent optical transmission characteristics having a core-cladding structure is fabricated. Plastic optical fibers so made exhibit light attenuation as low as 60 dB/km or lower.

    摘要翻译： 在密封系统中，将聚合引发剂和链转移剂加入到通过前两种成分的蒸馏步骤在减压条件下蒸馏的甲基丙烯酸甲酯单体，甲基丙烯酸甲酯单体依次聚合以制备芯聚合物，同时保持 然后将所得的芯聚合物进行熔融纺丝以形成芯纤维，同时保持密封体系，并且折射率低于上述芯纤维的高分子化合物的包层附着在其周围 由此制造具有芯包层结构的具有优异光传输特性的低损耗塑料光纤。 如此制造的塑料光纤的光衰减低达60dB / km或更低。

    Third-order nonlinear optical main chain polymer material and method for preparing the same
    4.
    发明授权
    Third-order nonlinear optical main chain polymer material and method for preparing the same 失效
    三阶非线性光学主链聚合物材料及其制备方法

    公开(公告)号：US5318729A

    公开(公告)日：1994-06-07

    申请号：US734257

    申请日：1991-07-22

    申请人： Takashi Kurihara ,  Michiyuki Amano ,  Yuhei Mori ,  Satoru Tomaru ,  Toshikuni Kaino

    发明人： Takashi Kurihara ,  Michiyuki Amano ,  Yuhei Mori ,  Satoru Tomaru ,  Toshikuni Kaino

    IPC分类号： C08G63/685 ,  G02F1/361 ,  F21V9/00 ,  G02B6/00

    CPC分类号： C08G63/6854 ,  G02F1/3616

    摘要： A third-order nonlinear optical main chain polymer material contains a high .chi..sup.(3) component having no less than 3 but no more than 7 .pi.-conjugated bonding groups and having an electron donor in the main chain of the polymer through covalent bonds. The donor is preferably an alkylamino structure, more preferably a dialkylamino structure. Particularly preferred is a diethylamino structure. The high .chi..sup.(3) component is preferably a phenylene ring system of which phenylene rings are bonded through azo bonding groups with the phenylene rings and the azo bonding groups being positioned alternately. The polymer main chain is polyurethane or polyester. The third-order nonlinear optical main chain polymer material is prepared by polyaddition of a high .chi..sup.(3) compound, i.e., a precursor of the high .chi..sup.(3) component, having a hydroxyl group at each end with a diisocyanate compound or by polycondensation of the high .chi..sup.(3) compound with a dicarboxylic acid.

    摘要翻译： 三阶非线性光学主链聚合物材料包含具有不少于3个但不超过7个π共轭键合基团的高岐（3）组分，并且通过共价键在聚合物主链中具有电子给体。 给体优选为烷基氨基结构，更优选为二烷基氨基结构。 特别优选的是二乙基氨基结构。 高岐（3）成分优选为亚苯环系，其中亚苯环通过偶氮键合基与亚苯基环并且偶氮键基交替定位。 聚合物主链是聚氨酯或聚酯。 三阶非线性光学主链聚合物材料通过将高岐（3）化合物，即高岐（3）组分的前体，其末端具有二异氰酸酯化合物的羟基或通过缩聚反应 的高岐（3）化合物与二羧酸。

    Third-order nonlinear optical main chain polymer material and method for preparing the same
    5.
    发明授权
    Third-order nonlinear optical main chain polymer material and method for preparing the same 失效
    三阶非线性光学主链聚合物材料及其制备方法

    公开(公告)号：US5496503A

    公开(公告)日：1996-03-05

    申请号：US224216

    申请日：1994-04-07

    申请人： Takashi Kurihara ,  Michiyuki Amano ,  Yuhei Mori ,  Satoru Tomaru ,  Toshikuni Kaino

    发明人： Takashi Kurihara ,  Michiyuki Amano ,  Yuhei Mori ,  Satoru Tomaru ,  Toshikuni Kaino

    IPC分类号： C08G63/685 ,  G02F1/361 ,  F21V9/00 ,  G02F1/35

    CPC分类号： C08G63/6854 ,  G02F1/3616

    摘要： A third-order nonlinear optical main chain polymer material contains a high .chi..sup.(3) component having no less than 3 but no more than 7 .pi.-conjugated bonding groups and having an electron donor in the main chain of the polymer through covalent bonds. The donor is preferably an alkylamino structure, more preferably a dialkylamino structure. Particularly preferred is a diethylamino structure. The high .chi..sup.(3) component is preferably a phenylene ring system of which phenylene rings are bonded through azo bonding groups with the phenylene rings and the azo bonding groups being positioned alternately. The polymer main chain is polyurethane or polyester. The third-order nonlinear optical main chain polymer material is prepared by polyaddition of a high .chi..sup.(3) compound, i.e., a precursor of the high .chi..sup.(3) component, having a hydroxyl group at each end with a diisocyanate compound or by polycondensation of the high .chi..sup.(3) compound with a dicarboxylic acid.

    摘要翻译： 三阶非线性光学主链聚合物材料包含具有不少于3个但不超过7个π共轭键合基团的高岐（3）组分，并且通过共价键在聚合物主链中具有电子给体。 给体优选为烷基氨基结构，更优选为二烷基氨基结构。 特别优选的是二乙基氨基结构。 高岐（3）成分优选为亚苯环系，其中亚苯环通过偶氮键合基与亚苯基环并且偶氮键基交替定位。 聚合物主链是聚氨酯或聚酯。 三阶非线性光学主链聚合物材料通过将高岐（3）化合物，即高岐（3）组分的前体，其末端具有二异氰酸酯化合物的羟基或通过缩聚反应 的高岐（3）化合物与二羧酸。

    Second-order nonlinear optical polymer and method for producing the same
    6.
    发明授权
    Second-order nonlinear optical polymer and method for producing the same 失效
    二阶非线性光学聚合物及其制造方法

    公开(公告)号：US5359008A

    公开(公告)日：1994-10-25

    申请号：US62138

    申请日：1993-05-17

    申请人： Michiyuki Amano ,  Makoto Hikita ,  Satoru Tomaru ,  Toshikuni Kaino ,  Yoshito Shuto

    发明人： Michiyuki Amano ,  Makoto Hikita ,  Satoru Tomaru ,  Toshikuni Kaino ,  Yoshito Shuto

    IPC分类号： C08F8/30 ,  G02F1/361 ,  C08F222/30 ,  C08F8/32 ,  C08F228/06

    CPC分类号： C08F8/30 ,  G02F1/3617

    摘要： The present invention provides a second-order nonlinear optical polymer including a polymer backbone and side groups bonded to the polymer backbone, wherein the side groups include one or more of a first nonlinear optical group represented by the following formula (C-1) and one or more of a second nonlinear optical group represented by the following formula (C-2) or (C-2)': ##STR1## wherein .pi..sub.1 to .pi..sub.n, .pi.'.sub.1, .pi.'.sub.2, and .pi.".sub.1 each represent independently a .pi.-conjugated cyclic compound group; X.sub.1 to X.sub.n-1, X'.sub.1, Y.sub.1 to Y.sub.n-1, and Y'.sub.1 each represent independently CH, N, or N.fwdarw.O; A.sub.1, A.sub.2, and A.sub.3 each represent independently an electron attracting group; D.sub.1, D.sub.2, and D.sub.3 each represent independently an electron donating group; and n represents an integer of 3 or greater.

    摘要翻译： 本发明提供一种二阶非线性光学聚合物，其包括聚合物主链和与聚合物主链结合的侧基，其中侧基包括由下式（C-1）表示的第一非线性光学基团和一个或多个由下式 或更多的由下式（C-2）或（C-2）表示的第二非线性光学基团：-D1-pi1-X1 = Y1-（...）-i-1-Xn-1 =（C-1）-D2-pi1'-X1'= Y1'-pi2-A2（C-2）-D3-pi1“-A3（C-2） ）其中p 1至p n，p'1，p'2和p 1“各自独立地表示π-共轭环状化合物基团; X1至Xn-1，X'1，Y1至Yn-1，Y'1各自独立地表示CH，N或N-> O; A1，A2和A3各自独立地表示吸电子基团; D1，D2和D3各自独立地表示给电子基团; n表示3以上的整数。