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公开(公告)号：US20240184224A1
公开(公告)日：2024-06-06
申请号：US18510943
申请日：2023-11-16
Applicant: CANON KABUSHIKI KAISHA
Inventor： YUKIHIRO ABE , ICHIRO KANNO , JUNICHI TAMURA , MARI KABURAGI , HAYATO IDA , MASAO SUZUKI , KEI INOUE , WAKA HASEGAWA
CPC classification number: G03G9/0825 , G03G9/0819 , G03G9/0827 , G03G9/09708 , G03G9/09725 , G03G9/09775
Abstract: The external additive for toner includes an external additive particle containing: a fine particle A; and a plurality of fine particles B that are each present so as to partially protrude from a surface of the fine particle A, wherein the fine particle A (i) is a particle of an organosilicon compound having a siloxane bond, (ii) has a number-average particle diameter of 0.03 μm or more and 0.30 μm or less, and (iii) has an average circularity of 0.90 or more, wherein, when the number-average particle diameter of the fine particle A is represented by DA, and a number-average particle diameter of the plurality of fine particles B is represented by DB, DB/DA is 0.10 or more and 0.63 or less.
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公开(公告)号：USRE49985E1
公开(公告)日：2024-05-28
申请号：US17400758
申请日：2021-08-12
Applicant: Verdant Technologies, LLC
Inventor： Willard E. Wood , Joseph S. Keute
IPC: A61K9/70 , A61K9/00 , A61K47/40 , A61K47/69 , B05D1/18 , B32B3/10 , B41J2/41 , G03G9/00 , G03G9/08 , G03G9/087 , G03G9/093 , G03G9/097
CPC classification number: A61K9/703 , A61K9/0014 , A61K9/006 , A61K47/40 , A61K47/6951 , B05D1/18 , B32B3/10 , B41J2/41 , G03G9/00 , G03G9/08 , G03G9/087 , G03G9/08775 , G03G9/08777 , G03G9/09335 , G03G9/09758 , G03G9/09775 , Y10T428/24802
Abstract: Disclosed herein are methods of electrostatically printing a cyclodextrin composition on a substrate, the method including forming an electrostatically printable composition comprising a polymer and one or more cyclodextrins, one or more cyclodextrin inclusion complexes, or a combination thereof, and electrostatically printing the composition on a substrate. Also described are electrostatically printable compositions, methods of making the compositions, printing systems employing the compositions, substrates having the composition electrostatically printed thereon, laminates thereof, and uses of the printed substrates and laminates.
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公开(公告)号：US11934147B2
公开(公告)日：2024-03-19
申请号：US17195716
申请日：2021-03-09
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yasuhiro Hashimoto , Koji Nishikawa , Yuujirou Nagashima , Tomoya Nagaoka
CPC classification number: G03G9/09775 , G03G9/0819 , G03G9/08711 , G03G9/08755 , G03G9/08757
Abstract: A toner comprising a toner particle comprising a binder resin and organosilicon polymer particles on a surface of the toner particle, wherein the binder resin comprising an amorphous resin and a crystalline polyester resin, an absolute value |SPcpes−SPsi| of a difference between an SP value (SPsi) of the organosilicon polymer particles and an SP value (SPcpes) of the crystalline polyester resin is not more than 2.00 (cal/cm3)1/2, and an amount of adsorbed water in the organosilicon polymer particles at a temperature of 30° C. and a humidity of 80% RH is not more than 20 mg/g.
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公开(公告)号：US20230257526A1
公开(公告)日：2023-08-17
申请号：US18169053
申请日：2023-02-14
Applicant: CANON KABUSHIKI KAISHA
Inventor： ICHIRO KANNO , HAYATO IDA , HIROKI WATANABE , MARI KABURAGI
CPC classification number: C08G77/045 , C08J3/03 , C08J7/065 , C08J7/12 , G03G9/09775 , G03G9/0819 , C08J2383/04
Abstract: The present disclosure provides a fine particle containing silicon, wherein the fine particle has a number-average particle diameter of a primary particle of 0.05 μm or more and 0.20 μm or less, wherein the fine particle contains a silicon atom at a ratio of 20% or more with respect to all elements in measurement by X-ray fluorescence.
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公开(公告)号：US20180329329A1
公开(公告)日：2018-11-15
申请号：US15975064
申请日：2018-05-09
Applicant: CANON KABUSHIKI KAISHA
Inventor： KUNIHIKO NAKAMURA , Kenta Kamikura , Maho Tanaka , Fumiya Hatakeyama
CPC classification number: G03G9/09335 , G03G9/0819 , G03G9/0821 , G03G9/0825 , G03G9/08711 , G03G9/08728 , G03G9/08755 , G03G9/09364 , G03G9/09371 , G03G9/09385 , G03G9/09708 , G03G9/09716 , G03G9/09725 , G03G9/09775
Abstract: Provided is a toner comprising a toner particle including a toner base particle and fine particles present on a surface of the toner base particle, wherein each of the fine particles includes a core fine particle and a condensate of at least one organosilicon compound selected from the group consisting of organosilicon compounds represented by specific structural formulas, the condensate coating the surface of the core fine particle, and in a wettability test of the toner with respect to a methanol/water mixed solvent, a methanol concentration, when a transmittance of light having a wavelength of 780 nm is 50%, is 5.0 to 20.0% by volume: in above Formulas, each of Ra, Rb and Rc independently represents an alkyl group, an alkenyl group, an acetoxy group, an acyl group, an aryl group, or a methacryloxyalkyl group, R1 to R5 each independently represents a halogen atom or an alkoxy group.
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Patent Agency Ranking
公开(公告)号：US20180329324A1
公开(公告)日：2018-11-15
申请号：US15973661
申请日：2018-05-08
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kenta Kamikura , Kunihiko Nakamura , Maho Tanaka , Fumiya Hatakeyama
CPC classification number: G03G9/0825 , G03G9/0821 , G03G9/0823 , G03G9/08711 , G03G9/08773 , G03G9/09775
Abstract: A toner including: a toner particle including a toner base particle containing a binder resin, and an organosilicon condensate present on a surface of the toner base particle, wherein a charge attenuation constant of the toner is 3.5×10−3 or more to 1.0×100 or less.
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公开(公告)号：US20180329322A1
公开(公告)日：2018-11-15
申请号：US15974936
申请日：2018-05-09
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kenta Kamikura , Kunihiko Nakamura , Maho Tanaka , Fumiya Hatakeyama
CPC classification number: G03G9/0806 , G03G9/0804 , G03G9/0812 , G03G9/0825 , G03G9/0827 , G03G9/087 , G03G9/08773 , G03G9/09775
Abstract: A first aspect is a toner production method in which an organosilicon compound is condensed in a surfactant-containing aqueous medium with a specific surface tension, in which a resin particle is dispersed, to produce a toner having the condensate of the organosilicon compound on the surface of the resin particle, and a second aspect is a toner production method in which an organosilicon compound is condensed in an aqueous medium which has a surfactant and a specific metal salt and in which a resin particle is dispersed, to produce a toner having the condensate of the organosilicon compound on the surface of the resin particle.
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公开(公告)号：US20180307149A1
公开(公告)日：2018-10-25
申请号：US16021270
申请日：2018-06-28
Applicant: ZEON CORPORATION
Inventor： Takeru Chiba , Hiroshi Nakatani
CPC classification number: G03G9/08 , C08J3/005 , C08L2205/00 , G03G9/0802 , G03G9/081 , G03G9/0839 , G03G9/087 , G03G9/08711 , G03G9/08782 , G03G9/08797 , G03G9/0904 , G03G9/09314 , G03G9/09733 , G03G9/09741 , G03G9/09775
Abstract: Disclosed is a method for producing a toner comprising combining a binder resin, a wax, a negatively-chargeable charge control resin and a colorant to form the toner, prior to said combining, the negatively-chargeable charge control resin is obtained by drying treatment conducted for 2 to 24 hours under conditions of a drying temperature of 45 to 80° C. and a pressure of 0.5 to 20 kPa, wherein the negatively-chargeable charge control resin comprises a monomer unit having a functional group that imparts a negative charging property, a vinyl aromatic hydrocarbon monomer unit, and a (meth)acrylate monomer unit.
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公开(公告)号：US20180292765A1
公开(公告)日：2018-10-11
申请号：US15942785
申请日：2018-04-02
Applicant: KYOCERA Document Solutions Inc.
Inventor： Akinori KOYAMA
CPC classification number: G03G11/00 , G03G9/0821 , G03G9/0825 , G03G9/08755 , G03G9/08782 , G03G9/09733 , G03G9/09758 , G03G9/09775
Abstract: An electrostatic latent image developing toner has positive chargeability and includes a plurality of toner particles. The toner particles each include primary domains made from a primary mixture. The primary mixture contains a wax and an antioxidant. The antioxidant is contained in an amount of at least 1.8 parts by mass and no greater than 15.8 parts by mass relative to 100 parts by mass of the primary mixture.
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公开(公告)号：US09989873B1
公开(公告)日：2018-06-05
申请号：US15499217
申请日：2017-04-27
Applicant: Xerox Corporation
Inventor： Valerie M. Farrugia , Richard Philip Nelson Veregin
CPC classification number: G03G9/09378 , G03G9/0819 , G03G9/0821 , G03G9/0825 , G03G9/0827 , G03G9/08711 , G03G9/08755 , G03G9/0918 , G03G9/09321 , G03G9/09335 , G03G9/09364 , G03G9/09371 , G03G9/09392 , G03G9/09758 , G03G9/09775
Abstract: Disclosed herein include styrene-acrylic-based compositions containing a purine derivative antiplasticizer with particles having a core-shell type structure and methods for their preparation.
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