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    Magnetic recording medium and magnetic recording reproducer
    2.
    发明授权
    Magnetic recording medium and magnetic recording reproducer 失效
    磁记录介质和磁记录再现器

    公开(公告)号：US5985403A

    公开(公告)日：1999-11-16

    申请号：US214551

    申请日：1994-03-18

    申请人： Takayuki Nakakawaji ,  Mitsuyoshi Shoji ,  Tomoe Takamura ,  Shuji Imazeki ,  Yutaka Ito ,  Hisashi Morooka ,  Yuko Murakami ,  Juichi Arai

    发明人： Takayuki Nakakawaji ,  Mitsuyoshi Shoji ,  Tomoe Takamura ,  Shuji Imazeki ,  Yutaka Ito ,  Hisashi Morooka ,  Yuko Murakami ,  Juichi Arai

    IPC分类号： G11B5/255 ,  G11B5/64 ,  G11B5/72 ,  G11B5/725 ,  G11B5/73 ,  G11B5/82 ,  G11B21/21 ,  G11B5/66

    CPC分类号： G11B5/725 ,  Y10S428/90 ,  Y10T428/3154

    摘要： A magnetic recording medium comprising a non-magnetic substrate and a magnetic layer and a protective layer which are formed on the non-magnetic substrate in that order, wherein a substance(s) as a single component or a plurality of components, which constitute a liquid continuously supplied to the surface of said protective layer, are adsorbed on or react with the surface of said protective layer to form a lubricating film having low frictional properties and low wearing-out properties. The present invention can realize negligible friction and wear resistance even in severe sliding at a very slightly kept-off or completely contacted state by continuous supply of a liquid lubricant prepared by adding a fluoro compound and an extreme pressure agent or an oiliness agent to a solvent to the surface of a disc, and can provide a magnetic recording reproducer having excellent sliding-resistant characteristics.

    摘要翻译： 一种磁记录介质，其特征在于，包括非磁性基板和磁性层以及保护层，其形成在非磁性基板上，其中构成单个部件或多个部件的物质 连续供给到所述保护层的表面的液体被吸附在所述保护层的表面上或与所述保护层的表面反应，形成具有低摩擦性能和低磨损性能的润滑膜。 本发明即使在非常轻微的断开或完全接触状态的严重滑动中也可以实现可忽略的摩擦和耐磨性，通过连续供应通过向溶剂中加入氟化合物和极压剂或油性剂制备的液体润滑剂 并且可以提供具有优异的抗滑性的磁记录再现器。

    CURABLE CAGE-TYPE SILICONE COPOLYMER AND PROCESS FOR PRODUCTION THEREOF AND CURABLE RESIN COMPOSITION COMPRISING CURABLE CAGE-TYPE SILICONE COPOLYMER AND CURED PRODUCT THEREOF
    5.
    发明申请
    CURABLE CAGE-TYPE SILICONE COPOLYMER AND PROCESS FOR PRODUCTION THEREOF AND CURABLE RESIN COMPOSITION COMPRISING CURABLE CAGE-TYPE SILICONE COPOLYMER AND CURED PRODUCT THEREOF 有权
    可固化笼型硅酮共聚物及其生产工艺及其可固化树脂组合物，其包含可固化的笼型硅酮共聚物及其固化产物

    公开(公告)号：US20100280190A1

    公开(公告)日：2010-11-04

    申请号：US12809556

    申请日：2008-12-25

    申请人： Takashi Saito ,  Mitsuhiro Koike ,  Yuko Murakami

    发明人： Takashi Saito ,  Mitsuhiro Koike ,  Yuko Murakami

    IPC分类号： C08L83/07 ,  C08G77/20

    CPC分类号： C07F7/21 ,  C08G77/045 ,  C08G77/12 ,  C08G77/14 ,  C08G77/16 ,  C08G77/18 ,  C08G77/20 ,  C08G77/24 ,  C08G77/70 ,  C08L83/04

    摘要： Disclosed is a cage-type copolymer in which a cage structure is incorporated in its main chain. Also disclosed is a curable resin composition comprising the said copolymer. Specifically disclosed is a curable cage-type silicone copolymer with a constituent unit represented by general formula (1) Y—[Z—(O1/2—R22SiO1/2)a—(R1SiO3/2)n—(O1/2)b]—Z—Y: wherein R1 and R2 each is a vinyl group, an alkyl group, a phenyl group, a (meth)acryloyl group, an allyl group, or an oxirane ring-containing group, Z is a divalent group represented by the following general formula (2) wherein R3 is a hydrogen atom, a vinyl group, an alkyl group, a phenyl group, a (meth)acryloyl group, an allyl group, or an oxirane ring-containing group, and Y is any one of the groups represented by the following general formula (3) [(R4O)R22SiO1/2]a—[R12SiO3/2]n—[O1/2]—, general formula (4) [R4O1/2]b—[R1SiO3/2]n—[O1/2—R22SiO1/2]—, general formula (5) (R4O1/2)—, and general formula (6) (R23SiO1/2)— wherein R4 is a hydrogen atom, a methyl group, or an ethyl group.

    摘要翻译： 本发明公开了一种笼型共聚物，其主链中结合有笼结构。 还公开了包含所述共聚物的可固化树脂组合物。 具体公开的是具有由通式（1）表示的结构单元的可固化笼型硅氧烷共聚物，Y- [Z-（O1 / 2-R22SiO1 / 2）a-（R1SiO3 / 2）n-（O1 / 2）b ] -Z-Y：其中R1和R2各自为乙烯基，烷基，苯基，（甲基）丙烯酰基，烯丙基或含环氧乙烷环的基团，Z为由 下述通式（2）其中R3是氢原子，乙烯基，烷基，苯基，（甲基）丙烯酰基，烯丙基或含环氧乙烷环的基团，Y是任何一个 由以下通式（3）表示[（R4O）R22SiO1 / 2] a- [R12SiO3 / 2] n- [O1 / 2] - 通式（4）[R4O1 / 2] b- [R1SiO3 / 2] n- [O1 / 2-R22SiO1 / 2] - 通式（5）（R4O1 / 2） - 和通式（6）（R23SiO1 / 2） - 其中R4是氢原子，甲基 ，或乙基。

    Curable cage-type silicone copolymer and process for production thereof and curable resin composition comprising curable cage-type silicone copolymer and cured product thereof
    8.
    发明授权
    Curable cage-type silicone copolymer and process for production thereof and curable resin composition comprising curable cage-type silicone copolymer and cured product thereof 有权
    可固化笼型硅氧烷共聚物及其制备方法和包含可固化笼型硅氧烷共聚物及其固化产物的可固化树脂组合物

    公开(公告)号：US08299185B2

    公开(公告)日：2012-10-30

    申请号：US12809556

    申请日：2008-12-25

    申请人： Takashi Saito ,  Mitsuhiro Koike ,  Yuko Murakami

    发明人： Takashi Saito ,  Mitsuhiro Koike ,  Yuko Murakami

    IPC分类号： C08G77/20 ,  C08G77/38 ,  C08F283/12 ,  C08L83/07 ,  C08L83/10

    CPC分类号： C07F7/21 ,  C08G77/045 ,  C08G77/12 ,  C08G77/14 ,  C08G77/16 ,  C08G77/18 ,  C08G77/20 ,  C08G77/24 ,  C08G77/70 ,  C08L83/04

    摘要： Disclosed is a cage-type copolymer in which a cage structure is incorporated in its main chain. Also disclosed is a curable resin composition comprising the said copolymer. Specifically disclosed is a curable cage-type silicone copolymer with a constituent unit represented by general formula (1) Y—[Z—(O1/2—R22SiO1/2)a—(R1SiO3/2)n—(O1/2)b]—Z—Y: wherein R1 and R2 each is a vinyl group, an alkyl group, a phenyl group, a (meth)acryloyl group, an allyl group, or an oxirane ring-containing group, Z is a divalent group represented by the following general formula (2) wherein R3 is a hydrogen atom, a vinyl group, an alkyl group, a phenyl group, a (meth)acryloyl group, an allyl group, or an oxirane ring-containing group, and Y is any one of the groups represented by the following general formula (3) [(R4O)R22SiO1/2]a—[R12SiO3/2]n—[O1/2]—, general formula (4) [R4O1/2]b—[R1SiO3/2]n—[O1/2—R22SiO1/2]—, general formula (5) (R4O1/2)—, and general formula (6) (R23SiO1/2)— wherein R4 is a hydrogen atom, a methyl group, or an ethyl group.

    摘要翻译： 本发明公开了一种笼型共聚物，其主链中结合有笼结构。 还公开了包含所述共聚物的可固化树脂组合物。 具体公开的是具有由通式（1）表示的结构单元的可固化笼型硅氧烷共聚物，Y- [Z-（O1 / 2-R22SiO1 / 2）a-（R1SiO3 / 2）n-（O1 / 2）b ] -Z-Y：其中R1和R2各自为乙烯基，烷基，苯基，（甲基）丙烯酰基，烯丙基或含环氧乙烷环的基团，Z为由 下述通式（2）其中R3是氢原子，乙烯基，烷基，苯基，（甲基）丙烯酰基，烯丙基或含环氧乙烷环的基团，Y是任何一个 由以下通式（3）表示[（R4O）R22SiO1 / 2] a- [R12SiO3 / 2] n- [O1 / 2] - 通式（4）[R4O1 / 2] b- [R1SiO3 / 2] n- [O1 / 2-R22SiO1 / 2] - 通式（5）（R4O1 / 2） - 和通式（6）（R23SiO1 / 2） - 其中R4是氢原子，甲基 ，或乙基。