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    Robust magnetizable elastomeric thermoplastic blends
    172.
    发明授权
    Robust magnetizable elastomeric thermoplastic blends 有权
    坚固的可磁化弹性体热塑性共混物

    公开(公告)号：US07863365B2

    公开(公告)日：2011-01-04

    申请号：US11642700

    申请日：2006-12-20

    Applicant: Edward H. Park

    Inventor： Edward H. Park

    IPC: C08K3/10

    CPC classification number: C08L67/025 ,  C08K3/013 ,  C08K3/22 ,  C08K2201/01 ,  C08L21/00 ,  C08L77/02 ,  C08L2666/08

    Abstract: Polymeric binder blended from thermoplastic and uncured elastomer binds magnetizable particulate in segmentally magnetizable materials used for encoder targets used in encoders and assemblies where encoders determine rate of motion. The polymeric binder has a dynamic mechanical thermal analyzer tangent delta value (ASTM E 1640-94) not greater than 0.1 at a temperature not less than the liquefaction supra point temperature of the thermoplastic when cured with radiation (preferably electron beam radiation) prior to being blended with either the magnetizable particulate or with other filler materials. The binder effects encoder targets evidencing robustness to thermal or chemical agent stress. Pre-cured blends of magnetizable particulate in the binder evidence good extrusion (pultrusion) performance.

    Abstract translation: 从热塑性和未固化的弹性体混合的聚合物粘合剂在用于编码器和组件的编码器目标的可分段磁化材料中结合可磁化颗粒，编码器和组件中编码器确定运动速度。 聚合物粘合剂具有动态机械热分析仪正切δ值（ASTM E 1640-94），在不低于热塑性塑料的液化超温度的温度下不大于0.1，在使用辐射（优选电子束辐射） 与可磁化颗粒或与其他填充材料混合。 粘合剂影响编码器目标，证明对热或化学剂应力的鲁棒性。 粘合剂中可磁化颗粒的预固化共混物证明良好的挤出（拉挤成型）性能。

    GASKET
    174.
    发明申请
    GASKET 失效
    垫子

    公开(公告)号：US20090199659A1

    公开(公告)日：2009-08-13

    申请号：US12305246

    申请日：2007-05-30

    Applicant: Tomonobu Abe ,  Shigeru Tsuchiya ,  Shigeru Hayashida

    Inventor： Tomonobu Abe ,  Shigeru Tsuchiya ,  Shigeru Hayashida

    IPC: G01L1/12 ,  F16J15/02 ,  F16L9/00

    CPC classification number: C09K3/1009 ,  C08K2201/01

    Abstract: A gasket according to the present invention is for sealing a valve or pipe used in a high-pressure gas supplying equipment, which is comprised of a polymer material containing magnetic particles. Also, in a determination method of deterioration and damages of a gasket according to the present invention, the aforementioned gasket is used as the gasket for sealing a valve or pipe in a high-pressure gas supplying equipment, and the magnetic force of the gasket is measured to determine the deterioration and the damages of the gasket.

    Abstract translation: 根据本发明的垫圈用于密封由含有磁性颗粒的聚合物材料组成的高压气体供应设备中使用的阀或管道。 此外，在根据本发明的垫圈的劣化和损坏的确定方法中，使用上述垫圈作为用于密封高压气体供给设备中的阀或管的垫圈，并且垫圈的磁力为 测量以确定垫圈的劣化和损坏。

    Magnetic rubber composition for encoder
    176.
    发明申请
    Magnetic rubber composition for encoder 审中-公开

    公开(公告)号：US20090095937A1

    公开(公告)日：2009-04-16

    申请号：US12314013

    申请日：2008-12-02

    Applicant: Yoshihiko Yamaguchi

    Inventor： Yoshihiko Yamaguchi

    IPC: H01F1/10

    CPC classification number: H01F1/117 ,  C08K3/22 ,  C08K5/548 ,  C08K2201/01 ,  G01D5/244 ,  C08L15/005

    Abstract: A magnetic rubber composition for encoder having a magnetic characteristic in sufficient application range, used as encoder after magnetization as well as heat resistance, water resistance and oil resistance required for use as encoder, and excellent processing property, and capable of being bonded by vulcanization with a metal, is provided. Furthermore, a magnetic rubber composition for encoder capable of obtaining sufficient magnetic force required for encoder on a circumference of the molded encoder as well as capable of effectively restraining variation of the level of magnetic force, is provided. It is provided by comprising 300 to 1,800 parts of strontium-ferrite, or 300 to 1,800 parts of barium-ferrite, or 300 to 1,800 parts of a mixture of strontium-ferrite and barium-ferrite, 0.5 to 2 parts of silane coupling agent, and 1 to 10 parts of lubricating agent, per 100 parts of a hydrogenated nitrile butadiene rubber with 15 to 50% of acrylonitrile amount and 80 to 99% of hydrogenation ratio.

    Magnetic rubber composition for encoder
    178.
    发明申请
    Magnetic rubber composition for encoder 审中-公开
    编码器用磁性橡胶组合物

    公开(公告)号：US20020183427A1

    公开(公告)日：2002-12-05

    申请号：US09890189

    申请日：2001-07-30

    Inventor： Yoshihiko Yamaguchi

    IPC: C08J003/00

    CPC classification number: H01F1/117 ,  C08K3/22 ,  C08K5/548 ,  C08K2201/01 ,  G01D5/244 ,  C08L15/005

    Abstract: A magnetic rubber composition for encoder having a magnetic characteristic in sufficient application range, used as encoder after magnetization as well as heat resistance, water resistance and oil resistance required for use as encoder, and excellent processing property, and capable of being bonded by vulcanization with a metal, is provided. Furthermore, a magnetic rubber composition for encoder capable of obtaining sufficient magnetic force required for encoder on a circumference of the molded encoder as well as capable of effectively restraining variation of the level of magnetic force, is provided. It is provided by comprising 300 to 1,800 parts of strontium-ferrite, or 300 to 1,800 parts of barium-ferrite, or 300 to 1,800 parts of a mixture of strontium-ferrite and barium-ferrite, 0.5 to 2 parts of silane coupling agent, and 1 to 10 parts of lubricating agent, per 100 parts of a hydrogenated nitrile butadiene rubber with 15 to 50% of acrylonitrile amount and 80 to 99% of hydrogenation ratio.

    Abstract translation: 一种用于编码器的磁性橡胶组合物，其具有足够应用范围的磁特性，用作磁化后的编码器以及用作编码器所需的耐热性，耐水性和耐油性，以及优异的加工性能，并且能够通过硫化与 提供金属。 此外，提供了一种用于编码器的磁性橡胶组合物，其能够在模制编码器的圆周上获得编码器所需的足够的磁力，并且能够有效地抑制磁力水平的变化。 通过将锶铁氧体300〜1,800份，钡铁氧体300〜1800份，锶铁氧体和钡铁氧体的混合物300〜1,800份，硅烷偶联剂0.5〜2份， 和1至10份润滑剂，每100份氢化丁腈橡胶中丙烯腈含量为15-50％，氢化率为80-99％。

    Flexible high energy magnetic blend compositions based on rare earth magnetic particles in highly saturated nitrile rubber
    179.
    发明授权
    Flexible high energy magnetic blend compositions based on rare earth magnetic particles in highly saturated nitrile rubber 失效
    基于高饱和丁腈橡胶中稀土磁性颗粒的柔性高能磁共混组合物

    公开(公告)号：US5051200A

    公开(公告)日：1991-09-24

    申请号：US409539

    申请日：1989-09-19

    Applicant: Raymond C. Srail ,  Richard A. Glover ,  Tiong H. Kuan ,  Thomas R. Szczepanski

    Inventor： Raymond C. Srail ,  Richard A. Glover ,  Tiong H. Kuan ,  Thomas R. Szczepanski

    IPC: C22C38/00 ,  C08K3/08 ,  H01F1/053 ,  H01F1/14

    CPC classification number: H01F1/0533 ,  C08K3/08 ,  C08K2201/01

    Abstract: A flexible magnetic blend composition is provided which is comprised of high energy rare earth magnetic particles in a flexible high temperature resistant and oil resistant polymer binder. The binder system preferably comprises a highly saturated nitrile rubber (HSN) or a polymer alloy of the same in which a HSN is the major polymer and also contains additives which are compatible with processing, subsequent electron beam curing, and final product performance. The binder system is high loaded, usually from about 50 to about 70 volume percent, with the high energy rare earth magnetic particles, which can produce bonded magnets with a maximum energy product of at least 2.5 megagauss-oersteds, a remenance, B.sub.r of at least 3400 gauss, a coercive force, Hc, of at least 2900 oersteds and an intrinsic coercivity, Hci, of at least 5000 oersteds. The process for production of this system involves the binder system and rare earth magnetic particles being mixed and then formed into a final geometry before being cured by high voltage electron beam radiation. The electron beam curing in the solid state fixes dimensional stability, magnetic properties, and oil, solvent and chemical resistance of the part even when exposed to subsequent hostile temperature environments of 100.degree. C. or higher. Further, the HSN binder system reduces oxidation of the rare earth magnetic particles from subsequent hot air aging when compared to conventional nitrile elastomer binder system. Any off geometry parts or trim produced in the process prior to radiation curing can be recycled through processing several times without fear of premature cure.

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