Method and apparatus for controlling polymerization reaction
    1.
    发明授权
    Method and apparatus for controlling polymerization reaction 失效
    控制聚合反应的方法和装置

    公开(公告)号:US4742472A

    公开(公告)日:1988-05-03

    申请号:US725813

    申请日:1985-04-22

    摘要: This invention provides a method and an apparatus for controlling a polymerization reaction. The temperature difference between a target temperature, calculated from the degradation rate of a polymerization initiator, which varies as a function of temperature, and a polymerization reactor temperature is calculated. The difference in polymerization rate between a target polymerization rate previously set and a polymerization rate calculated from a measured heat release value at a certain time in the polymerization process is calculated. The temperature inside the reactor is finely adjusted on the basis of the temperature difference and the difference in polymerization rate.

    摘要翻译: 本发明提供了一种控制聚合反应的方法和装置。 计算由聚合引发剂的降解速率计算的目标温度(其随温度变化而变化)与聚合反应器温度之间的温度差。 计算预先设定的目标聚合速度与由聚合过程中的某个时间的测定的热释放值计算的聚合速度之间的聚合速率的差异。 基于温度差和聚合速度差,精细地调节反应器内部的温度。

    Electrostatic recording material
    2.
    发明授权
    Electrostatic recording material 失效
    静电记录材料

    公开(公告)号:US4752522A

    公开(公告)日:1988-06-21

    申请号:US847525

    申请日:1986-04-03

    摘要: An electrostatic recording material comprising a substrate treated for low electric resistance and a dielectric layer formed on the substrate and composed of a composition comprising an insulating resin having a volume specific resistance of at least 10.sup.12 .OMEGA.cm and a powder of an acrylonitrile-type polymer having a copolymerized acrylonitrile content of at least 95% by weight and containing substantially no ionic groups, said powder having a volume average particle size of from 1.5 to 4 .mu.m and a content of particles having a size exceeding 8 .mu.m as measured by a particle size distribution measuring apparatus, being at most 0.02% by number.

    摘要翻译: 一种静电记录材料,包括用于低电阻处理的基底和形成在基底上的电介质层,该电介质层由包含体积电阻率为至少1012欧米亚厘米的绝缘树脂和丙烯腈型聚合物的粉末组成的组合物组成, 共聚丙烯腈含量为至少95重量%且基本上不含离子基团,所述粉末具有1.5至4μm的体积平均粒度和通过颗粒测量的尺寸超过8μm的颗粒含量 尺寸分布测量装置,数量至多0.02%。

    Particulate polymer and preparation process thereof
    4.
    发明授权
    Particulate polymer and preparation process thereof 失效
    微粒聚合物及其制备方法

    公开(公告)号:US4874841A

    公开(公告)日:1989-10-17

    申请号:US898018

    申请日:1986-08-19

    摘要: Disclosed herein is a particulate polymer prepared by the agglomeration of polymer particles contained in a polymer latex. The particulate polymer is composed of primary particles having particle sizes of at least 20 .mu.m and/or secondary particles formed by the agglomeration of at least some of the primary particles and is in the form of a compact mass substantially free of voids. The particulate polymer is prepared by coagulating the polymer latex in the presence of a coagulant and an organic liquid having low solubility in water. The particulate polymer has a high bulk specific gravity and contains few fine particles. It is thus easy to handle and allows the consumption of energy to be reduced in the drying step.

    摘要翻译: 本文公开了通过聚合物胶乳中包含的聚合物颗粒的聚集制备的颗粒聚合物。 颗粒状聚合物由至少20μm的粒径的一次粒子和/或由至少一些初级粒子附聚形成的二次粒子组成,并且呈基本上不含空隙的致密质量的形式。 颗粒聚合物通过在凝结剂和在水中溶解度低的有机液体存在下使聚合物胶乳凝结来制备。 颗粒聚合物具有高堆积比重并且几乎没有细颗粒。 因此,易于处理并允许在干燥步骤中减少能量的消耗。

    Method for producing rubber modified thermoplastic resins
    6.
    发明授权
    Method for producing rubber modified thermoplastic resins 失效
    橡胶改性热塑性树脂的制造方法

    公开(公告)号:US4992510A

    公开(公告)日:1991-02-12

    申请号:US394720

    申请日:1989-08-16

    IPC分类号: C08J3/00 C08L51/04

    CPC分类号: C08J3/005 C08L51/04

    摘要: Disclosed is method for producing a rubber modified thermoplastic reins which comprises carrying out all or a part of the following setps (I) - (VI):(I) a step of mixing the following (A), (B), (C) and thermoplastic resin (2):(A) a latex of graft rubber polymer (1),(B) an organic agent which is capable of dissolving thermoplastic resin (2) and has a solubility in water of 5% by weight or less at a temperature at which (A), (B), (C) and thermoplastic resin (2) are mixed, amount of the organic agent being 10-600% by weight of polymer (4) which is the sum of graft rubber polymer (1) and thermoplastic resin (2) and(C) a water soluble agent capable of coagulating latex (A), amount of this agent being 10% by weight or less of graft rubber polymer (1),(II) a step of separating and removing aqueous phase from a two-phase mixture obtained in the mixing step (I),(III) a step of mixing the mixture from which the aqueous phase has been removed at step (II) and the whole or a part of thermoplastic resin (3),(IV) a step of removing a part or the whole of organic agent (B) and remaining water from the mixture obtained at step (III) by a thermal means,(V) a step of mixing the remainder of thermoplastic resin (3) in case a part of thermoplastic resin (3) has been mixed at step (III), and(VI) a step of removing the remainder of organic agent (B) in case only a part of organic agent (B) has been removed at step (IV).

    Method for producing rubber modified thermoplastic resins
    7.
    发明授权
    Method for producing rubber modified thermoplastic resins 失效
    橡胶改性热塑性树脂的制造方法

    公开(公告)号:US4880877A

    公开(公告)日:1989-11-14

    申请号:US946058

    申请日:1986-12-24

    IPC分类号: C08J3/00 C08L51/04

    CPC分类号: C08J3/005 C08L51/04

    摘要: Disclosed is a method for producing a rubber modified thermoplastic resin which comprises carrying out all or a part of the following steps (I)-(VI):(I) a setp of mixing the following (A), (B), (C) and thermoplastic resin (2):(A) a latex of gfart rubber polymer (1),(B) an organic agent which is capable of dissolving thermoplastic resin (2) and has a solubility in water of 5% by weight or less t a temperature at which (A), (B), (C) and thermoplastic resin (2) are mixed, amount of the organic agent being 10-600% by weight of polymer (4) which is the sum of graft rubber polymer (1) and thermoplastic resin (2) and(C) a warer soluble agent capable of coagulating latex (A), amount of this agent being 10% by weight or less of graft rubber polymer (1),(II) a step of separating and removing aqueous phase from a two-phase mixture obtained in the mixing step (I),(III) a step of mixing the mixture from which the aqueous phase hsa been removed at step (II) and the whole or a part of thermoplastic resin (3),(IV) a step of removing a part or the whole of ogranic agent (B) and remaining water from the mixture obtained at step (III) by a thermal means,(V) a step of mixing the remainder of thermoplastic resin (3) in case a part of thermoplastic resin (3) has been mixed at step (III), and(VI) a step of removing the remainder of organic agent (B) in case only a part of organic agent (B) has been removed at step (IV).

    摘要翻译: 公开了一种橡胶改性热塑性树脂的制造方法,其特征在于,进行以下(I)〜(VI)的全部或一部分步骤(I):(I)将下述(A),(B),(C )和热塑性树脂(2):(A)gfart橡胶聚合物(1)的胶乳,(B)能够溶解热塑性树脂(2)并且在水中的溶解度为5重量%以下的有机试剂 (A),(B),(C)和热塑性树脂(2)混合时,有机试剂的量为聚合物(4)的10-600重量%,其为接枝橡胶聚合物 1)和热塑性树脂(2)和(C)能够凝固胶乳(A)的较易溶解剂,该试剂的量为接枝橡胶聚合物(1)的10重量%以下,(II)分离步骤 以及从混合步骤(I),(III)中获得的两相混合物中除去水相的步骤是将在步骤(II)中除去水相hsa的混合物与热塑性树脂的全部或部分混合的步骤 苯乙烯树脂(3),(Ⅳ)通过加热方法从步骤(III)获得的混合物中除去部分或全部异味剂(B)和剩余水的步骤,(Ⅴ) 在热塑性树脂(3)的一部分已经在步骤(III)中混合的情况下,热塑性树脂(3)的热塑性树脂(3),和(VI)在仅有一部分有机试剂的情况下去除剩余的有机试剂(B)的步骤 B)已经在步骤(IV)被去除。

    PRODUCTION METHOD FOR GRADED INDEX TYPE OPTICAL TRANSMISSION ELEMENT
    9.
    发明申请
    PRODUCTION METHOD FOR GRADED INDEX TYPE OPTICAL TRANSMISSION ELEMENT 审中-公开
    分级索引型光传输元件的生产方法

    公开(公告)号:US20100316809A1

    公开(公告)日:2010-12-16

    申请号:US12861425

    申请日:2010-08-23

    IPC分类号: B05D3/06 B05D5/06

    摘要: A production method for an optical transmission element, wherein a cylindrical transparent resin is used as a core wire, a monomer becoming a polymer different in refractive index from the core wire after polymerized or a mixture of a monomer and a polymer is bonded to the outer periphery of the core wire and the monomer is diffused from the outer periphery of the core wire to thereby form the monomer inside the core wire at a proper concentration distribution, and then the monomer is further polymerized to the core wire to provide a distribution layer having different refractive indexes from the center toward the outer periphery, whereby it is possible to provide a graded index type optical transmission element at low costs with a simple facility.

    摘要翻译: 一种光传输元件的制造方法,其中使用圆柱形透明树脂作为芯线,在聚合后成为与芯线的折射率不同的聚合物的单体或单体和聚合物的混合物结合到外部 芯线的周边和单体从芯线的外周扩散,从而以适当的浓度分布形成芯线内的单体,然后将单体进一步聚合到芯线,以提供具有 从中心到外周的不同的折射率,由此可以以简单的设备以低成本提供渐变式折射率型光传输元件。