公开(公告)号：US20220146954A1

公开(公告)日：2022-05-12

申请号：US17515869

申请日：2021-11-01

申请人： CANON KABUSHIKI KAISHA

发明人： Mai Kato ,  Hirofumi Kyuushima ,  Naoya Isono ,  Kenichi Nakayama ,  Yoshiaki Shiotari

IPC分类号： G03G9/097 ,  G03G9/08 ,  G03G9/093

摘要： A toner comprises a toner particle comprising a core particle comprising a resin component, a shell coating the surface of the core particle, and a polyvalent metal. The resin component comprises a polyester resin, and the shell comprises an amino resin; in an electron image of a cross section of the toner acquired using a transmission electron microscope, a polyvalent metal content P(M) obtained by energy-dispersive x-ray analysis at the core/shell interface and in the vicinity of this interface is 0.0010 to 2.00 atomic %; and the surface storage elastic modulus of the toner at a load of 30 μN at 25° C., according to nanoindentation measurement of the toner, is from 6.50 GPa to 12.00 GPa.

公开(公告)号：US20220146953A1

公开(公告)日：2022-05-12

申请号：US17515845

申请日：2021-11-01

申请人： CANON KABUSHIKI KAISHA

发明人： Hirofumi Kyuushima ,  Mai Kato ,  Naoya Isono ,  Shintaro Noji ,  Kenichi Nakayama

IPC分类号： G03G9/093

摘要： A toner comprising a toner particle comprising a core particle comprising a binder resin, and a shell on a surface of the core particle, wherein the shell comprises an oxazoline group and a polyvalent metal, and in an electron image of a cross-section of the toner particle taken with a transmission electron microscope, the polyvalent metal has atomic concentration C(M) of 0.0010 to 0.5000 atomic % as measured by energy dispersive X-ray analysis of the shell.

公开(公告)号：US20210318631A1

公开(公告)日：2021-10-14

申请号：US17205716

申请日：2021-03-18

申请人： CANON KABUSHIKI KAISHA

发明人： Naoya Isono ,  Kenichi Nakayama ,  Hirofumi Kyuushima ,  Mai Kato

IPC分类号： G03G9/093 ,  C08G63/183 ,  C08F212/08

摘要： The toner includes a toner particle that comprising a core particle containing a resin component and a shell on a surface of the core particle, wherein the resin component comprises more than 50.0 mass % of a polyester resin comprising a monomer unit that contains a heterocyclic group, and the shell comprises at least one resin selected from the group consisting of prescribed (meth)acrylic resins and melamine resins.

公开(公告)号：US12130587B2

公开(公告)日：2024-10-29

申请号：US17205716

申请日：2021-03-18

申请人： CANON KABUSHIKI KAISHA

发明人： Naoya Isono ,  Kenichi Nakayama ,  Hirofumi Kyuushima ,  Mai Kato

IPC分类号： G03G9/093 ,  C08F212/08 ,  C08G63/183

CPC分类号： G03G9/09371 ,  C08F212/08 ,  C08G63/183 ,  G03G9/09321

摘要： The toner includes a toner particle that comprising a core particle containing a resin component and a shell on a surface of the core particle, wherein the resin component comprises more than 50.0 mass % of a polyester resin comprising a monomer unit that contains a heterocyclic group, and the shell comprises at least one resin selected from the group consisting of prescribed (meth)acrylic resins and melamine resins.