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    Precoated steel sheet having improved corrosion resistance and formability
    1.
    发明授权
    Precoated steel sheet having improved corrosion resistance and formability 失效
    具有改善的耐腐蚀性和成形性的预涂钢板

    公开(公告)号：US5141822A

    公开(公告)日：1992-08-25

    申请号：US620449

    申请日：1990-12-03

    申请人： Sachio Matsuo ,  Toshiaki Shiota ,  Maki Itoh ,  Hideo Kawaguchi ,  Hiroki Hanabata ,  Yukihiro Yoshikawa ,  Takao Taka ,  Kiyoyuki Fukui

    发明人： Sachio Matsuo ,  Toshiaki Shiota ,  Maki Itoh ,  Hideo Kawaguchi ,  Hiroki Hanabata ,  Yukihiro Yoshikawa ,  Takao Taka ,  Kiyoyuki Fukui

    IPC分类号： B05D7/14 ,  B05D7/24 ,  B32B15/08 ,  B32B15/092 ,  C23C22/30 ,  C23C28/00

    CPC分类号： C23C28/00 ,  C23C22/30 ,  Y10T428/12549 ,  Y10T428/12569 ,  Y10T428/12799

    摘要： A precoated steel sheet having improved corrosion resistance and formability is disclosed, which comprises a Zn- or Zn alloy-plated steel sheet having on the plated surface either a colloidal silica-containing chromate undercoat layer and a polyhydroxypolyether resin-based topcoat of 0.3 to 10 .mu.m in thickness in which resin is derived by polycondensation of a dihydric phenol component selected from a mononuclear dihydric phenol, dinuclear dihydric phenol, and a mixture of both, with an epihalohydrin or a non-colloidal material-containing chromate underlayer and an epoxy resin based topcoat containing colloidal silica of a thickness of from 0.3-1.6 .mu.m in thickness. In spite of the absence of zinc powder, the precoated steel sheet can be satisfactorily welded by resistance welding when the thickness of the topcoat layer is not greater than 2.5 .mu.m, and even with such a thin topcoat, the precoated steel sheet retains its improved corrosion resistance and formability. The precoated steel sheet can be satisfactorily finish-coated by electrodeposition. The undercoat layer is produced by a two stage reduction of Cr.sup.+6 to Cr.sup.+3 in an aqueous suspension containing chromic acid.

    摘要翻译： 公开了一种具有改进的耐腐蚀性和可成形性的预涂钢板，其包括在镀覆表面上具有含胶体二氧化硅的铬酸盐底涂层和聚羟基聚醚树脂基面涂层为0.3至10的镀Zn钢或Zn合金 通过将选自单核二元酚，双核二元酚和二者的混合物的二元酚成分与表卤代醇或非胶体材料的铬酸盐底层和环氧树脂缩聚得到树脂的厚度μm 含有厚度为0.3-1.6μm厚度的胶体二氧化硅的基面涂层。 尽管不存在锌粉，但是当顶涂层的厚度不大于2.5μm时，预涂钢板可以通过电阻焊接令人满意地焊接，并且即使使用这种薄的顶涂层，预涂钢板保持其改进 耐腐蚀性和成型性。 预涂钢板可以通过电沉积令人满意地完成涂层。 底涂层是通过在含有铬酸的含水悬浮液中将Cr +6还原为Cr + 3来进行的。

    Polyimide having organopolysiloxane side chain
    3.
    发明授权
    Polyimide having organopolysiloxane side chain 失效
    具有有机聚硅氧烷侧链的聚酰亚胺

    公开(公告)号：US5473041A

    公开(公告)日：1995-12-05

    申请号：US248780

    申请日：1994-05-25

    申请人： Maki Itoh

    发明人： Maki Itoh

    IPC分类号： C08G73/10 ,  C08G77/455 ,  C08G77/26

    CPC分类号： C08G73/101 ,  C08G77/455

    摘要： There is disclosed an organopolysiloxane having bifunctional biphenyl groups of the formula I ##STR1## wherein Q is selected from the group consisting of a nitro group, a substituted amino group and an unsubstituted amino group, Z is an organopolysiloxane group represented by the formula II ##STR2## in which R.sup.1 is a divalent organic group having at least 2 carbon atoms, R.sup.2 through R.sup.6 are the same or different monovalent organic groups, n is an integer having a value of at least 1 and m is 0 or 1. The above organopolysiloxane may be reacted with an aromatic tetracarboxylic acid dianhydride and, optionally, with an aromatic diamine to obtain a polyamide acid, which may then be subjected to a thermal imidization step to provide a polyimide having repeating units shown by the formulas VI and VII ##STR3## wherein A.sup.1 is a tetravalent aromatic group, A.sup.3 is a divalent aromatic group and A.sup.2 is a divalent organic group which contains a siloxane residue and wherein the molar ratio of repeating unit VI to repeating unit VII in the range 100:0 to 1:99.

    摘要翻译： 公开了具有式I的双官能联苯基团的有机聚硅氧烷，其中Q选自硝基，取代氨基和未取代的氨基，Z是由式II表示的有机聚硅氧烷基团 具有至少2个碳原子，R 2至R 6为相同或不同的一价有机基团，n为至少为1且m为0或1的整数。上述有机聚硅氧烷可与芳族四羧酸二酐 和任选地与芳族二胺反应以获得聚酰胺酸，然后可以进行酰亚胺化步骤以提供具有式VI和VII所示重复单元的聚酰亚胺VI，其中A1是 四价芳香族基团，A3为二价芳香族基团，A2为含有硅氧烷残基的二价有机基团，其中重复单元VI与重复单元VII的摩尔比在 范围100：0至1:99。

    Methods Of Modifying Metal-Oxide Nanoparticles
    4.
    发明申请
    Methods Of Modifying Metal-Oxide Nanoparticles 审中-公开
    改性金属氧化物纳米颗粒的方法

    公开(公告)号：US20130253161A1

    公开(公告)日：2013-09-26

    申请号：US13991851

    申请日：2011-12-06

    申请人： Masaaki Amako ,  Maki Itoh ,  Michitaka Suto

    发明人： Masaaki Amako ,  Maki Itoh ,  Michitaka Suto

    IPC分类号： C09C1/36 ,  C09C1/00

    CPC分类号： C09C1/3676 ,  B82Y30/00 ,  C01P2002/82 ,  C01P2002/86 ,  C01P2004/51 ,  C01P2004/64 ,  C09C1/00 ,  C09C1/3684 ,  C09C3/12 ,  H01L23/296 ,  H01L2924/0002 ,  H01L2924/00

    摘要： Methods employing acidic and basic catalysts are disclosed, and generally entail hydrolysis and condensation reactions of silicon based components. The methods are useful for forming siloxane-modified metal-oxide nanoparticles, such as modified ZrO2 nanoparticles. The siloxane-modified metal-oxide nanoparticles, and products including the siloxane-modified metal-oxide nanoparticles, can be used to form various products, such as lenses or encapsulants for making various devices, such as, but not limited to, light emitting diodes (LEDs).

    摘要翻译： 公开了使用酸性和碱性催化剂的方法，通常需要硅基组分的水解和缩合反应。 该方法可用于形成硅氧烷改性的金属氧化物纳米颗粒，例如改性的ZrO 2纳米颗粒。 硅氧烷改性的金属氧化物纳米颗粒和包含硅氧烷改性的金属氧化物纳米颗粒的产品可用于形成各种产品，例如用于制造各种装置的透镜或密封剂，例如但不限于发光二极管 （LED）。

    Polymer-compatible polymethylsilsesquioxane
    8.
    发明授权
    Polymer-compatible polymethylsilsesquioxane 失效
    聚合物相容的聚甲基硅倍半氧烷

    公开(公告)号：US5907019A

    公开(公告)日：1999-05-25

    申请号：US977701

    申请日：1997-11-25

    申请人： Maki Itoh ,  Akihito Sakakibara-Saitoh ,  Michitaka Suto

    发明人： Maki Itoh ,  Akihito Sakakibara-Saitoh ,  Michitaka Suto

    IPC分类号： C08L83/06 ,  C08F283/12 ,  C08G77/04 ,  C08G77/06 ,  C08G77/16 ,  C08G77/38

    CPC分类号： C08G77/06 ,  C08F283/12 ,  C08G77/04

    摘要： A silylated polymethylsilsesquioxane, that contains no more than 0.12 residual silanol per Si atom and has a predetermined number average molecular weight from 380 to 2,000 is obtained by silylating the silanol in a starting polymethylsilsesquioxane with the formula(CH.sub.3 SiO.sub.3/2).sub.n (CH.sub.3 Si(OH)O.sub.2/2).sub.mwherein m and n are positive numbers that provide the specified molecular weight and 0.034/(M.times.10.sup.-3).ltoreq.m/(m+n).ltoreq.0.152/(M.times.10.sup.-3)+0.10. The silylated polymethylsilsequioxanes of the present invention exhibit compatibility with silicone polymers, e.g., polydimethylsiloxanes. As a consequence, the silylated polymethylsilsesquioxanes of the invention can be used in a wide range of applications as, for example, a reinforcing filler for rubbers.

    摘要翻译： 通过使甲硅烷基化的起始聚甲基硅倍半氧烷中的硅烷醇与式（CH3SiO3 / 2）n（CH3Si（OH））进行甲硅烷基化，得到甲硅烷基化的聚甲基倍半硅氧烷，其每Si原子含有不超过0.12的残留硅烷醇，并且具有380至2,000的预定数均分子量。 ）O 2/2）m，其中m和n是提供指定分子量的正数和0.034 /（M×10 -3）m /（m + n）≤0.22/（M×10 -3）+0.10的正数。 本发明的甲硅烷基化聚甲基硅二恶烷表现出与硅氧烷聚合物例如聚二甲基硅氧烷的相容性。 因此，本发明的甲硅烷基化聚甲基倍半硅氧烷可用于广泛的应用中，例如用于橡胶的增强填料。