Resin-filled ferrite carrier core material for electrophotographic developer, ferrite carrier and electrophotographic developer using the ferrite carrier
    1.
    发明授权
    Resin-filled ferrite carrier core material for electrophotographic developer, ferrite carrier and electrophotographic developer using the ferrite carrier 有权
    用于电子照相显影剂的树脂填充的铁氧体载体芯材料,使用铁氧体载体的铁素体载体和电子照相显影剂

    公开(公告)号:US08475988B2

    公开(公告)日:2013-07-02

    申请号:US13019485

    申请日:2011-02-02

    IPC分类号: G03G9/107

    CPC分类号: G03G9/107 G03G9/113

    摘要: Disclosed are a resin-filled ferrite carrier core material for an electrophotographic developer, including a porous ferrite particle, wherein the composition of the porous ferrite particle is represented by the following formula (1), and part of (MgO) and/or (Fe2O3) in the following formula (1) is replaced with SrO; a ferrite carrier obtained by filling a resin in the voids of the ferrite carrier core material; and an electrophotographic developer using the ferrite carrier: ( MgO ) ⁢ x ⁡ ( Fe 2 ⁢ O 3 ) ⁢ y ⁢ ( x = 10 ⁢ ⁢ mol ⁢ ⁢ % ⁢ ⁢ or ⁢ ⁢ more ⁢ ⁢ and ⁢ ⁢ less ⁢ ⁢ than ⁢ ⁢ 25 ⁢ ⁢ mol ⁢ ⁢ % y = exceeding ⁢ ⁢ 75 ⁢ ⁢ mol ⁢ ⁢ % ⁢ ⁢ and ⁢ ⁢ 90 ⁢ ⁢ mol ⁢ ⁢ % ⁢ ⁢ or ⁢ ⁢ less x + y = 100 ⁢ ⁢ mol ⁢ ⁢ % ) . ( 1 )

    摘要翻译: 公开了一种用于电子照相显影剂的树脂填充的铁氧体载体芯材,其包括多孔铁氧体颗粒,其中多孔铁氧体颗粒的组成由下式(1)表示,部分(MgO)和/或(Fe 2 O 3 )用SrO代替; 通过将树脂填充在铁氧体载体芯材料的空隙中而获得的铁氧体载体; 和使用铁素体载体的电子照相显影剂:(MgO)x⁡(Fe 2 O 3)y(x = 10, ⁢25⁢⁢⁢⁢%y y =⁢⁢⁢⁢⁢⁢⁢⁢⁢⁢⁢⁢⁢⁢⁢less x x x x x x )。 (1)

    Resin-filled ferrite carrier for electrophotographic developer, production method thereof and electrophotographic developer using the ferrite carrier
    3.
    发明授权
    Resin-filled ferrite carrier for electrophotographic developer, production method thereof and electrophotographic developer using the ferrite carrier 有权
    用于电子照相显影剂的树脂填充铁氧体载体,其制造方法和使用铁素体载体的电子照相显影剂

    公开(公告)号:US08187781B2

    公开(公告)日:2012-05-29

    申请号:US12041836

    申请日:2008-03-04

    IPC分类号: G03G9/00

    摘要: Employed are a resin-filled ferrite carrier for an electrophotographic developer filled with a resin in voids of a porous ferrite core material, wherein the resin filled in the voids is a silicone resin which has a softening point of 40° C. or above and is cured at or above such softening point, and the filled amount is 7 to 30 parts by weight based on 100 parts by weight of the core material, a method for producing thereof band an electrophotographic developer using this ferrite carrier.

    摘要翻译: 使用填充有多孔铁氧体磁芯材料的空隙中填充有树脂的电子照相显影剂的树脂填充铁氧体载体,其中填充有空隙的树脂是软化点为40℃以上的有机硅树脂,并且为 在该软化点以上固化,填充量为基于100重量份芯材料为7〜30重量份,其使用该铁氧体载体的电子照相显影剂的制造方法。

    FERRITE CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPER AND ELECTROPHOTOGRAPHIC DEVELOPER
    4.
    发明申请
    FERRITE CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPER AND ELECTROPHOTOGRAPHIC DEVELOPER 失效
    电子显影开发商和电子显影开发商的铁路承运人

    公开(公告)号:US20080171281A1

    公开(公告)日:2008-07-17

    申请号:US12014852

    申请日:2008-01-16

    IPC分类号: G03G9/083

    摘要: Disclosed are a ferrite carrier for electrophotographic developer and an electrophotographic developer using the ferrite carrier, wherein: the ferrite carrier is a composite ferrite composed of Li and Mg; when the composition of the ferrite is calculated as a mixture of a Li ferrite having a stoichiometric composition and a Mg ferrite having a stoichiometric composition, the excessive amount of Fe2O3 is less than 5 mol %, or the total excessive amount of Li2O and MgO is less than 1 mol %; the content of the elements other than Li, Mg, Fe and O is 2% by weight or less; and further, the content of Mn in terms of element is 1000 to 9000 ppm.

    摘要翻译: 公开了一种用于电子照相显影剂的铁氧体载体和使用铁氧体载体的电子照相显影剂,其中:铁氧体载体是由Li和Mg组成的复合铁氧体; 当铁氧体的组成被计算为具有化学计量组成的Li铁氧体和具有化学计量组成的Mg铁氧体的混合物时,过量的Fe 2 O 3 O 3 小于5摩尔%,或总过量的Li 2 O和MgO小于1摩尔%; Li,Mg,Fe和O以外的元素的含量为2重量%以下; 此外,Mn的元素含量为1000〜9000ppm。

    Ferrite carrier for electrophotographic developer and electrophotographic developer
    6.
    发明授权
    Ferrite carrier for electrophotographic developer and electrophotographic developer 失效
    用于电子照相显影剂和电子照相显影剂的铁氧体载体

    公开(公告)号:US08026033B2

    公开(公告)日:2011-09-27

    申请号:US12014852

    申请日:2008-01-16

    IPC分类号: G03G9/00

    摘要: Disclosed are a ferrite carrier for electrophotographic developer and an electrophotographic developer using the ferrite carrier, wherein: the ferrite carrier is a composite ferrite composed of Li and Mg; when the composition of the ferrite is calculated as a mixture of a Li ferrite having a stoichiometric composition and a Mg ferrite having a stoichiometric composition, the excessive amount of Fe2O3 is less than 5 mol %, or the total excessive amount of Li2O and MgO is less than 1 mol %; the content of the elements other than Li, Mg, Fe and O is 2 % by weight or less; and further, the content of Mn in terms of element is 1000 to 9000 ppm.

    摘要翻译: 公开了一种用于电子照相显影剂的铁氧体载体和使用铁氧体载体的电子照相显影剂,其中:铁氧体载体是由Li和Mg组成的复合铁氧体; 当铁氧体的组成以具有化学计量组成的Li铁氧体和具有化学计量组成的Mg铁氧体的混合物计算时,过量的Fe 2 O 3小于5mol%,或者过量的Li 2 O和MgO是 小于1mol%; Li,Mg,Fe和O以外的元素的含量为2重量%以下; 此外,Mn的元素含量为1000〜9000ppm。

    Carrier for electrophotographic developer and electrophotographic developer containing the same
    7.
    发明授权
    Carrier for electrophotographic developer and electrophotographic developer containing the same 有权
    用于电子照相显影剂的载体和含有它的电子照相显影剂

    公开(公告)号:US06210850B1

    公开(公告)日:2001-04-03

    申请号:US09477798

    申请日:2000-01-05

    IPC分类号: G03G9113

    CPC分类号: G03G9/1135 G03G9/1136

    摘要: A resin-coated carrier for an electrophotographic developer which comprises a carrier core coated with an acryl-modified silicone resin the silicone resin of which has a methyl group and other organic groups, the molar ratio of the methyl group to the total organic groups inclusive of the methyl group [methyl group/(methyl group+other organic groups)]being 64 mol % or higher and lower than 70 mol %, and the acrylic resin to silicone resin weight ratio ranging from 2/8 to 4/6.

    摘要翻译: 一种用于电子照相显影剂的树脂涂覆载体,其包含涂覆有丙烯酸改性的有机硅树脂的载体芯,其硅树脂具有甲基和其它有机基团,甲基与总有机基团的摩尔比,包括 甲基[甲基/(甲基+其他有机基)]为64摩尔%以上且低于70摩尔%,丙烯酸树脂与硅酮树脂的重量比为2/8〜4/6。

    Resin-coated carrier for electrophotographic developer and electrophotographic developer using the resin-coated carrier
    9.
    发明授权
    Resin-coated carrier for electrophotographic developer and electrophotographic developer using the resin-coated carrier 有权
    用于电子照相显影剂的树脂涂覆载体和使用树脂涂覆的载体的电子照相显影剂

    公开(公告)号:US09557682B2

    公开(公告)日:2017-01-31

    申请号:US13435316

    申请日:2012-03-30

    摘要: Object of the present invention is to provide a resin-coated carrier for an electrophotographic developer with reduced carrier weight, carrier beads carry over is prevented, and further, excellent in carrier strength and stable charging property in endurance printing. To achieve the object, the carrier having a coated resin layer on the surface of a porous ferrite core material and the pore volume and the peak pore size of the porous ferrite core material are 55 to 160 mm3/g and 0.2 to 0.7 μm, respectively, and an electrophotographic developer using the resin-coated carrier is adopted.

    摘要翻译: 本发明的目的是提供一种用于电子照相显影剂的树脂涂布载体,其载体重量减小,防止载体珠粒携带,并且进一步优异的载体强度和耐久性印刷中的稳定带电性能。 为了达到上述目的,在多孔铁氧体磁芯材料的表面上具有涂布树脂层的载体和多孔铁氧体磁芯材料的孔体积和峰值孔径分别为55〜160mm 3 / g和0.2〜0.7μm 并且采用使用树脂涂布载体的电子照相显影剂。

    Rubber composition containing a nitrile-conjugated diene copolymer
    10.
    发明授权
    Rubber composition containing a nitrile-conjugated diene copolymer 失效
    含有腈共轭二烯共聚物的橡胶组合物

    公开(公告)号:US5246994A

    公开(公告)日:1993-09-21

    申请号:US953958

    申请日:1992-10-01

    摘要: A rubber composition containing (A) a mixture obtained by mixing (a1) 100 parts by weight of a highly saturated, ethylenically unsaturated nitrile-conjugated diene copolymer rubber whose copolymer chain contains not more than 30% by weight of conjugated diene units, and (a2) from 10 to 100 parts by weight of an ethylenically unsaturated monomer containing at least one carboxyl group, at least a proportion of the at least one carboxyl group being metal substituted such that a molar ratio of the at least one carboxyl group to the metal falls within a range of from 1/0.5 to 1/3; (B) an organic peroxide; and (C) a fatty acid amide, from 0.2 to 15 parts by weight of the (B) organic peroxide and from 0.5 to 20 parts by weight of the (C) fatty acid amide being added to 100 parts by weight of the (A) mixture.

    摘要翻译: 一种橡胶组合物,其含有(A)混合(a1)100重量份共聚物链含有不超过30重量%的共轭二烯单元的高饱和,烯属不饱和腈共轭二烯共聚物橡胶和(A) a2)10〜100重量份含有至少一个羧基的烯键式不饱和单体,所述至少一个羧基的至少一部分被金属取代,使得至少一个羧基与金属的摩尔比 落在1 / 0.5到1/3的范围内; (B)有机过氧化物; 和(C)脂肪酸酰胺,0.2〜15重量份的(B)有机过氧化物和0.5〜20重量份的(C)脂肪酸酰胺加入到100重量份的(A )混合物。