公开(公告)号：US20230185210A1

公开(公告)日：2023-06-15

申请号：US18079050

申请日：2022-12-12

Applicant: Tsukiko TAKAHASHI ,  Kohsuke SATOH ,  Kazumi SUZUKI ,  Daichi HISAKUNI ,  Kazuoki FUWA

Inventor： Tsukiko TAKAHASHI ,  Kohsuke SATOH ,  Kazumi SUZUKI ,  Daichi HISAKUNI ,  Kazuoki FUWA

IPC: G03G9/093 ,  G03G9/08

CPC classification number: G03G9/09385 ,  G03G9/0821 ,  G03G9/09328

Abstract: A glittering toner includes: a flat metallic pigment having a surface coated with a resin; a polyester-styrene acrylic composite resin; and a polyester resin. When a solubility parameter of the polyester-styrene acrylic composite resin is represented by SP1 (cal/cm3)1/2 and a solubility parameter of the polyester resin is represented by SP2 (cal/cm3)1/2, the SP1 and the SP2 satisfy a relational expression (1): [SP2−SP1>0.3] and the SP1 satisfies a relational expression (2): [10

公开(公告)号：US11675283B2

公开(公告)日：2023-06-13

申请号：US17092602

申请日：2020-11-09

Applicant: CANON KABUSHIKI KAISHA

Inventor： Kentaro Kamae ,  Kazuhisa Shirayama ,  Takeshi Hashimoto ,  Takeshi Ohtsu ,  Hayato Ida

IPC: G03G9/083 ,  G03G9/093 ,  C09D133/08 ,  C09D183/04 ,  C09D5/00

CPC classification number: G03G9/0833 ,  C09D133/08 ,  C09D183/04 ,  G03G9/0837 ,  G03G9/0838 ,  G03G9/0839 ,  G03G9/09321 ,  G03G9/09328 ,  G03G9/09385 ,  C09D5/002

Abstract: A magnetic carrier including a magnetic carrier particle having a magnetic core particle and a coating layer of an organosilicon polymer on a surface of the magnetic core particle, wherein the organosilicon polymer has the structure given by formula (T3) below; in 29Si-NMR measurement of the THF-insoluble matter of the organosilicon polymer, the ratio ST3 of the peak area for the structure given by formula (T3) to the total peak area for the organosilicon polymer is at least 0.05; and in the roughness curve measured on the magnetic carrier particle, the mean width (RSm) of the roughness curve elements of the magnetic carrier particle, and the ratio (σ/RSm) to this RSm of the standard deviation σ of the width of the region where one period of a protrusion and a recess occurs, are in prescribed ranges.

R—Si(O1/2)3  (T3)

R in the formula represents a prescribed substituent.

公开(公告)号：US20190064685A1

公开(公告)日：2019-02-28

申请号：US16101396

申请日：2018-08-11

Applicant: KYOCERA Document Solutions Inc.

Inventor： Erika TANAKA

IPC: G03G9/093 ,  G03G9/087

CPC classification number: G03G9/09321 ,  G03G9/081 ,  G03G9/08755 ,  G03G9/0904 ,  G03G9/09371 ,  G03G9/09385 ,  G03G9/09392

Abstract: Toner particles each include a toner mother particle and an external additive. The toner mother particle includes a toner core containing a binder resin and a shell layer covering a surface of the toner core. The external additive includes a plurality of external addition resin particles. The external addition resin particles are each present on a surface of the shell layer. The shell layer contains a specific vinyl resin. The toner core and each resin particle are bonded together through a covalent bond within the shell layer. A detachment rate of the resin particles is lower than 5%.

公开(公告)号：US20190025723A1

公开(公告)日：2019-01-24

申请号：US16033834

申请日：2018-07-12

Applicant: KYOCERA Document Solutions Inc.

Inventor： Tomoyasu ASAKAWA

IPC: G03G9/083 ,  G03G9/093

CPC classification number: G03G9/0839 ,  G03G9/0833 ,  G03G9/09321 ,  G03G9/09328 ,  G03G9/09335 ,  G03G9/09371 ,  G03G9/09385

Abstract: A magnetic toner includes toner particles. The toner particles each include a toner core and a shell layer covering a surface of the toner core. The toner cores contain a polyester resin and a magnetic powder. The magnetic powder includes specific magnetic particles. The shell layers contain a specific vinyl resin.

公开(公告)号：US20180143556A1

公开(公告)日：2018-05-24

申请号：US15873351

申请日：2018-01-17

Applicant: LEXMARK INTERNATIONAL, INC.

Inventor： DANIELLE RENEE ASHLEY ,  LIGIA AURA BEJAT ,  MICHAEL JAMES BENSING ,  ASHLEY SCHAFER GRANT ,  CORY NATHAN HAMMOND ,  RICK OWEN JONES ,  JOHN JOSEPH KRASESKI ,  JING X. SUN

IPC: G03G9/093 ,  G03G9/08 ,  G03G9/087

CPC classification number: G03G9/09392 ,  G03G9/0804 ,  G03G9/0812 ,  G03G9/0827 ,  G03G9/08755 ,  G03G9/08773 ,  G03G9/09307 ,  G03G9/09321 ,  G03G9/09328 ,  G03G9/09335 ,  G03G9/09342 ,  G03G9/0935 ,  G03G9/09364 ,  G03G9/09371 ,  G03G9/09378 ,  G03G9/09385

Abstract: A method for producing core shell toner for electrophotography according to one embodiment, includes surface treating the outer surface of a core shell toner particle with a alkoxysilane hydrocarbon or combination of different alkoxysilane hydrocarbons using a hydrolytic deposition process after the core shell toner particle is fully formed. This method results in the bonding of the alkoxysilane hydrocarbon or combination of different alkoxysilane hydrocarbons to the outer surface of the core shell toner particle. In an alternative method, the outer surface of the toner is surface treated with the alkoxysilane hydrocarbon solution and then fused to form toner particles. The alkoxysilane hydrocarbon surface treated core shell toner also can be mixed with magnetic carrier beads to form a developer mix to be used in a dual component development electrophotographic printer.

公开(公告)号：US20180143554A1

公开(公告)日：2018-05-24

申请号：US15873327

申请日：2018-01-17

Applicant: LEXMARK INTERNATIONAL, INC.

Inventor： DANIELLE RENEE ASHLEY ,  LIGIA AURA BEJAT ,  MICHAEL JAMES BENSING ,  ASHLEY SCHAFER GRANT ,  CORY NATHAN HAMMOND ,  RICK OWEN JONES ,  JOHN JOSEPH KRASESKI ,  JING X SUN

IPC: G03G9/093 ,  G03G9/08 ,  G03G9/087

CPC classification number: G03G9/09328 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/09307 ,  G03G9/09321 ,  G03G9/09335 ,  G03G9/09342 ,  G03G9/09364 ,  G03G9/09371 ,  G03G9/09378 ,  G03G9/09385 ,  G03G9/09392

Abstract: A chemically prepared toner composition according to one example embodiment includes a core including a first polymer binder, a colorant and a release agent; a shell that is formed around the core that includes a second polymer binder; and a borax coupling agent between the core and the shell and an alkoxysilane hydrocarbon or combination of different alkoxysilane hydrocarbons that are bonded to the outer surface of the shell using a hydrolytic deposition process. This successful alkoxysilane hydrocarbon surface treatment on the outer surface of the toner particle results in attaining a desirable charge stability in hot and humid environments and ultimately improving the quality of the toner, especially by reducing toner dusting, toner fuming and ultra-fine particles generation

公开(公告)号：US20180129145A1

公开(公告)日：2018-05-10

申请号：US15784772

申请日：2017-10-16

Applicant: FUJI XEROX CO., LTD.

Inventor： Tomoaki TANAKA ,  Tetsuya TAGUCHI ,  Shinya SAKAMOTO ,  Ryutaro KEMBO

IPC: G03G9/08 ,  G03G9/087 ,  G03G9/09

CPC classification number: G03G9/0819 ,  G03G9/0806 ,  G03G9/0821 ,  G03G9/0827 ,  G03G9/08797 ,  G03G9/09 ,  G03G9/09378 ,  G03G9/09385 ,  G03G9/09392

Abstract: An electrostatic charge image developing toner set includes a white toner that includes white toner particles containing a core and a coating layer which does not contain a coloring agent and a colored toner that includes colored toner particles containing a core and a coating layer which does not contain a coloring agent, wherein with respect to a difference between an average equivalent circle diameter [Rw1] of the cores (Win) in the white toner particles and an average equivalent circle diameter [Rw2] of the white toner particles [Rw2−Rw1], and a difference between the average equivalent circle diameter [Rc1] of the cores (Cin) in the colored toner particles and the average equivalent circle diameter [Rc2] of the colored toner particles [Rc2−Rc1], a relationship of the following Expression (1) is satisfied: [Rw2−Rw1]

公开(公告)号：US09772574B2

公开(公告)日：2017-09-26

申请号：US14571430

申请日：2014-12-16

Applicant: KYOCERA Document Solutions Inc.

Inventor： Ryota Kobayashi ,  Masami Tsujihiro

IPC: G03G9/093 ,  G03G9/097

CPC classification number: G03G9/09328 ,  G03G9/09385 ,  G03G9/09392 ,  G03G9/09725

Abstract: A toner includes toner particles. The toner particles each include a toner core, silica particles located on a surface of the toner core, and a shell layer disposed over the surface of the toner core on which the silica particles are located. For at least 80% by number of the toner particles, along at least 80% of a circumferential length of a cross-section of the toner particle when the cross-section is analyzed by EELS, the shell layer has a thickness of at least 5 nm and satisfies a condition that a ratio of an intensity INc relative to an intensity INs is at least 0.0 and no greater than 0.2. The intensity INs indicates intensity of an N—K shell absorption-edge originating from nitrogen atoms in the shell layer. The intensity INc indicates intensity of an N—K shell absorption-edge originating from nitrogen atoms in the toner core.

公开(公告)号：US09760032B1

公开(公告)日：2017-09-12

申请号：US15053695

申请日：2016-02-25

Applicant: Xerox Corporation

Inventor： Guerino G. Sacripante ,  Kimberly D. Nosella ,  John Lawrence Pawlak

IPC: G03G9/087 ,  G03G9/08 ,  G03G9/093

CPC classification number: G03G9/08755 ,  G03G9/0804 ,  G03G9/081 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/09321 ,  G03G9/09371 ,  G03G9/09378 ,  G03G9/09385 ,  G03G9/09392

Abstract: A toner composition comprising (a) a first lower molecular weight amorphous polyester resin comprising a polyester derived from dodecenyl succinic acid, dodecenyl succinic anhydride, or a combination thereof present in an amount of from about 5 to about 15 weight percent, based on the total weight of the first amorphous polyester; (b) a second higher molecular weight amorphous polyester resin comprising a polyester derived from dodecenyl succinic acid, dodecenyl succinic anhydride, or a combination thereof, and a branching agent derived from a polyacid or polyol component; wherein the dodecenyl succinic acid, dodecenyl succinic anhydride, or combination thereof is present in the second amorphous polyester in an amount of from about 5 to about 15 weight percent, based on the total weight of the second amorphous polyester; (c) a crystalline polyester resin; (d) a wax; and (e) optionally, a colorant.

公开(公告)号：US20170248859A1

公开(公告)日：2017-08-31

申请号：US15053695

申请日：2016-02-25

Applicant: Xerox Corporation

Inventor： Guerino G. Sacripante ,  Kimberly D. Nosella ,  John Lawrence Pawlak

IPC: G03G9/087 ,  G03G9/093 ,  G03G9/08

CPC classification number: G03G9/08755 ,  G03G9/0804 ,  G03G9/081 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/09321 ,  G03G9/09371 ,  G03G9/09378 ,  G03G9/09385 ,  G03G9/09392

Abstract: A toner composition comprising (a) a first lower molecular weight amorphous polyester resin comprising a polyester derived from dodecenyl succinic acid, dodecenyl succinic anhydride, or a combination thereof present in an amount of from about 5 to about 15 weight percent, based on the total weight of the first amorphous polyester; (b) a second higher molecular weight amorphous polyester resin comprising a polyester derived from dodecenyl succinic acid, dodecenyl succinic anhydride, or a combination thereof, and a branching agent derived from a polyacid or polyol component; wherein the dodecenyl succinic acid, dodecenyl succinic anhydride, or combination thereof is present in the second amorphous polyester in an amount of from about 5 to about 15 weight percent, based on the total weight of the second amorphous polyester; (c) a crystalline polyester resin; (d) a wax; and (e) optionally, a colorant.