公开(公告)号：US20170227866A1

公开(公告)日：2017-08-10

申请号：US15426628

申请日：2017-02-07

Applicant: CANON KABUSHIKI KAISHA

Inventor： Nobuyoshi Sugahara ,  Hironori Minagawa ,  Wakashi Iida ,  Atsushi Nakano

IPC: G03G9/00

CPC classification number: G03G9/1133 ,  G03G9/08755 ,  G03G9/107 ,  G03G9/1075 ,  G03G15/0887

Abstract: A magnetic carrier having a ferrite-type core material and a resin coat layer present on the surface of the ferrite-type core material, wherein the ferrite-type core material contains a magnetic ferrite-type core material particle and an amino group-bearing primer compound; the resin coat layer contains a coating resin A that is a polymer of monomer containing a (meth)acrylate ester having an alicyclic hydrocarbon group; the content of the amino group-bearing primer compound in the ferrite-type core material and the content of the resin coat layer in the magnetic carrier are within the prescribed range.

公开(公告)号：US10007206B2

公开(公告)日：2018-06-26

申请号：US15426628

申请日：2017-02-07

Applicant: CANON KABUSHIKI KAISHA

Inventor： Nobuyoshi Sugahara ,  Hironori Minagawa ,  Wakashi Iida ,  Atsushi Nakano

IPC: G03G9/107 ,  G03G9/113 ,  G03G15/08

CPC classification number: G03G9/1133 ,  G03G9/08755 ,  G03G9/107 ,  G03G9/1075 ,  G03G15/0887

Abstract: A magnetic carrier having a ferrite-type core material and a resin coat layer present on the surface of the ferrite-type core material, wherein the ferrite-type core material contains a magnetic ferrite-type core material particle and an amino group-bearing primer compound; the resin coat layer contains a coating resin A that is a polymer of monomer containing a (meth)acrylate ester having an alicyclic hydrocarbon group; the content of the amino group-bearing primer compound in the ferrite-type core material and the content of the resin coat layer in the magnetic carrier are within the prescribed range.

公开(公告)号：US20170060010A1

公开(公告)日：2017-03-02

申请号：US15241317

申请日：2016-08-19

Applicant: CANON KABUSHIKI KAISHA

Inventor： Nobuyoshi Sugahara ,  Hironori Minagawa ,  Wakashi Iida ,  Atsushi Nakano

IPC: G03G9/00

CPC classification number: G03G9/0831 ,  G03G9/1133 ,  G03G9/1135 ,  G03G9/1138 ,  G03G15/09

Abstract: A magnetic carrier comprising:a magnetic material-dispersed resin carrier core material; and a resin coating layer on the surface of the magnetic material-dispersed resin carrier core material, wherein the magnetic material-dispersed resin carrier core material contains a core material particle containing a magnetic material and a binder resin, and a primer compound having an amino group, the resin coating layer contains a coating resin A, which is a polymer of monomers including at least a (meth)acrylic acid ester having an alicyclic hydrocarbon group, and the content of the primer compound in the magnetic material-dispersed resin carrier core material and the content of the resin coating layer are in specific range.

Abstract translation: 一种磁性载体，包括：磁性材料分散的树脂载体芯材料; 以及在磁性材料分散树脂载体芯材的表面上的树脂涂层，其中所述磁性材料分散树脂载体芯材包含含有磁性材料和粘合剂树脂的芯材颗粒，以及具有氨基 组中，树脂被覆层含有包含至少具有脂环式烃基的（甲基）丙烯酸酯的单体的聚合物的涂布树脂A和磁性体分散性树脂载体芯中的底漆化合物的含量 材料和树脂涂层的含量在特定范围内。

公开(公告)号：US09785070B2

公开(公告)日：2017-10-10

申请号：US15241317

申请日：2016-08-19

Applicant: CANON KABUSHIKI KAISHA

Inventor： Nobuyoshi Sugahara ,  Hironori Minagawa ,  Wakashi Iida ,  Atsushi Nakano

IPC: G03G9/083 ,  G03G15/09

CPC classification number: G03G9/0831 ,  G03G9/1133 ,  G03G9/1135 ,  G03G9/1138 ,  G03G15/09

Abstract: A magnetic carrier comprising: a magnetic material-dispersed resin carrier core material; and a resin coating layer on the surface of the magnetic material-dispersed resin carrier core material, wherein the magnetic material-dispersed resin carrier core material contains a core material particle containing a magnetic material and a binder resin, and a primer compound having an amino group, the resin coating layer contains a coating resin A, which is a polymer of monomers including at least a (meth)acrylic acid ester having an alicyclic hydrocarbon group, and the content of the primer compound in the magnetic material-dispersed resin carrier core material and the content of the resin coating layer are in specific range.