COPPER PARTICLES, COPPER PASTE, PROCESS FOR PRODUCING CONDUCTIVE COATING FILM, AND CONDUCTIVE COATING FILM
    8.
    发明申请
    COPPER PARTICLES, COPPER PASTE, PROCESS FOR PRODUCING CONDUCTIVE COATING FILM, AND CONDUCTIVE COATING FILM 有权
    铜颗粒,铜浆,生产导电涂膜的方法和导电涂膜

    公开(公告)号:US20140203222A1

    公开(公告)日:2014-07-24

    申请号:US14117970

    申请日:2012-05-17

    IPC分类号: C09D5/24 H01B1/02

    摘要: There are provided copper particles and a copper paste for a copper powder-containing coating film which can be subjected to electroless metal plating without using an expensive catalyst such as palladium, and a process for producing a conductive coating film by subjecting a copper powder-containing coating film formed by using the copper paste to electroless metal plating or heat treatment with superheated steam. The present invention relates to a process for producing a conductive coating film comprising the step of forming a coating film on an insulating substrate using copper particles having an average particle diameter of 0.05 to 2 μm as measured by observation using SEM in which a BET specific surface area value (SSA) (m2/g) and a carbon content (C) (% by weight) of the copper particles satisfy a relationship represented the following formula [1]: C/SSA·7×10−2 [1], and a copper paste comprising the copper particles; drying the coating film to obtain a copper powder-containing coating film; and then subjecting the resulting coating film to electroless metal plating or heat treatment with superheated steam.

    摘要翻译: 提供了铜颗粒和用于含铜粉末涂膜的铜浆,其可以在不使用钯等昂贵催化剂的情况下进行无电镀金属镀覆,以及通过使含铜粉末的 通过使用铜浆形成的涂膜通过无电镀金属镀层或用过热蒸汽进行热处理。 导电性涂膜的制造方法技术领域本发明涉及导电性涂膜的制造方法,其特征在于,包括以下步骤:使用平均粒径为0.05〜2μm的铜粒子,在绝缘性基材上形成涂膜, 铜颗粒的面积值(SSA)(m2 / g)和碳含量(C)(重量%)满足下式[1]所示的关系:C / SSA·7×10-2 [1] 以及包含铜颗粒的铜浆料; 干燥涂膜得到含铜粉末的涂膜; 然后对所得到的涂膜进行化学镀金属或用过热蒸汽的热处理。

    PROCESS FOR PRODUCING FERROMAGNETIC PARTICLES, ANISOTROPIC MAGNET, BONDED MAGNET AND COMPACTED MAGNET
    9.
    发明申请
    PROCESS FOR PRODUCING FERROMAGNETIC PARTICLES, ANISOTROPIC MAGNET, BONDED MAGNET AND COMPACTED MAGNET 审中-公开
    生产无机颗粒,异相磁铁,粘结磁体和压电磁铁的方法

    公开(公告)号:US20140085023A1

    公开(公告)日:2014-03-27

    申请号:US14113711

    申请日:2012-04-26

    IPC分类号: H01F1/01 H01F41/02

    摘要: The present invention relates to ferromagnetic particles capable of exhibiting a high purity and excellent magnetic properties from the industrial viewpoints and a process for producing the ferromagnetic particles, and also provides an anisotropic magnet, a bonded magnet and a compacted magnet which are obtained by using the ferromagnetic particles. The ferromagnetic particles comprising an Fe16N2 compound phase in an amount of not less than 80% as measured by Mössbauer spectrum and each having an outer shell in which FeO is present in the form of a layer having a thickness of not more than 5 nm according to the present invention can be produced by subjecting aggregated particles of an iron compound as a starting material whose primary particles have a ratio of [(average deviation of major axis lengths of particles)/(average major axis length of particles)] of not more than 50%, Uc of not more than 1.55, Cg of not less than 0.95, Cg2 of not less than 0.40, an average major axis length of 40 to 5000 nm, and an aspect ratio (major axis diameter/minor axis diameter) of 1 to 200, to dispersing treatment; then subjecting the iron compound particles passed through a mesh screen to reducing treatment at a temperature of 160 to 420° C.; and subjecting the resulting particles to nitridation treatment at a temperature of 130 to 170° C.

    摘要翻译: 本发明涉及从工业观点出发具有高纯度和优异磁特性的铁磁性颗粒以及制造铁磁性颗粒的方法,并且还提供了各向异性磁体,粘结磁体和压实磁体,它们通过使用 铁磁颗粒。 铁磁性颗粒包含通过Mössbauer光谱测量的不小于80%的Fe 16 N 2化合物相,并且每个具有外壳,其中FeO以厚度不大于5nm的层的形式存在,根据 本发明可以通过使铁化合物的凝集颗粒作为起始材料,其一次颗粒具有[(颗粒的长轴长度的平均偏差)/(颗粒的平均长轴长度)]的比例不大于 50%,Uc为1.55以下,Cg为0.95以上,Cg2为0.40以上,平均长轴长为40〜5000nm,纵横比(长轴径/短轴直径)为1 至200,分散处理; 然后使经过筛网的铁化合物粒子在160〜420℃的温度下进行还原处理。 并在130-170℃的温度下对所得颗粒进行氮化处理。

    Magnetic carrier for electrophotographic developer and process for producing the same, and two-component system developer
    10.
    发明授权
    Magnetic carrier for electrophotographic developer and process for producing the same, and two-component system developer 有权
    用于电子照相显影剂的磁性载体及其制备方法,以及双组分体系显影剂

    公开(公告)号:US08673529B2

    公开(公告)日:2014-03-18

    申请号:US13377904

    申请日:2010-06-15

    IPC分类号: G03G9/113

    摘要: The present invention relates to a magnetic carrier for an electrophotographic developer comprising spherical composite particles comprising spherical composite core particles comprising at least ferromagnetic iron oxide fine particles and a cured phenol resin and having an average particle diameter of 1 to 100 μm, and a melamine resin coating layer formed on the respective core particles, wherein a ratio of R100 to R300 (R100/R300) in which R100 is an electric resistance value as measured when applying a voltage of 100 V to the magnetic carrier; and R300 is an electric resistance value as measured when applying a voltage of 300 V to the magnetic carrier, is controlled to lie within the range of 1 to 50. The magnetic carrier according to the present invention is capable of maintaining an adequate electric resistance value upon development, providing images having an excellent image quality, exhibiting a good durability, obtaining a good reproducibility of uniform solid image portions having a high image density, and keeping high quality images having an excellent gradation for a long period of time.

    摘要翻译: 本发明涉及一种用于电子照相显影剂的磁性载体,其包含球形复合颗粒,该球形复合颗粒包含至少包含铁磁性氧化铁细颗粒和固化的酚醛树脂的平均粒径为1-100μm的球形复合芯颗粒和三聚氰胺树脂 形成在各个芯粒子上的涂层,其中R100与R300(R100 / R300)的比率,其中R100是当向磁性载体施加100V的电压时测量的电阻值; R300是向磁性载体施加300V的电压时测定的电阻值,被控制在1〜50的范围内。本发明的磁性载体能够保持足够的电阻值 在显影时,提供具有优异图像质量的图像,表现出良好的耐久性,获得具有高图像浓度的均匀立体图像部分的良好再现性,并且保持长时间具有优异灰度的高质量图像。