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    TONER FOR ELECTROSTATIC IMAGE DEVELOPMENT
    22.
    发明申请
    TONER FOR ELECTROSTATIC IMAGE DEVELOPMENT 有权
    静电图像发展的调色剂

    公开(公告)号：US20150227069A1

    公开(公告)日：2015-08-13

    申请号：US14616185

    申请日：2015-02-06

    Applicant: Konica Minolta, Inc.

    Inventor： Kouji SUGAMA ,  Hiroshi NAGASAWA ,  Anju HORI ,  Junya ONISHI ,  Noboru UEDA

    IPC: G03G9/087 ,  G03G9/08

    CPC classification number: G03G9/08733 ,  G03G9/0804 ,  G03G9/0819 ,  G03G9/0825 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/08797

    Abstract: Disclosed is a toner for electrostatic image development having excellent low-temperature fixability and high-temperature off-set resistance, attaining good image density, and having excellent homogeneity in image density. The toner comprises toner particles containing a binder resin which contains an amorphous resin (A) and an amorphous polyester resin (B) different from the resin (A) and a colorant, wherein the toner particles have a domain-matrix structure having the resin (B) as a domain phase dispersed in a matrix phase comprising the resin (A), and in a cross-sectional image of the toner particles, the number average domain diameter of the domain phase of the resin (B) having a domain diameter of 100 nm or more is 100 to 200 nm and an area ratio of the domain phase having a domain diameter of 500 nm or more relative to the total area of the domain phase is 0 to 10%.

    Abstract translation: 公开了一种用于静电图像显影的调色剂，其具有优异的低温定影性和高温脱模性，获得良好的图像密度，并且具有优异的图像浓度均匀性。 调色剂包括含有粘合剂树脂的调色剂颗粒，其含有不同于树脂（A）的无定形树脂（A）和无定形聚酯树脂（B）和着色剂，其中调色剂颗粒具有具有树脂的畴 - 基质结构（ B）作为分散在包含树脂（A）的基质相中的畴相，并且在调色剂颗粒的横截面图像中，具有畴直径的树脂（B）的畴相的数均域直径 100nm以上的范围为100〜200nm，相域相位域的总面积为500nm以上的畴相的面积比为0〜10％。

    PHOTORESPONSIVE COMPOUND
    23.
    发明申请
    PHOTORESPONSIVE COMPOUND 有权

    公开(公告)号：US20220390824A1

    公开(公告)日：2022-12-08

    申请号：US17664179

    申请日：2022-05-19

    Applicant: Konica Minolta, Inc.

    Inventor： Yukiko NAKAI ,  Toyoko SHIBATA ,  Kazuaki NAKAMURA ,  Kouji SUGAMA

    IPC: G03C1/73 ,  G03G9/08 ,  C08F220/18

    Abstract: Provided is a compound which is fluidized by light irradiation and is less colored. The compound is a compound represented by the following general formula (1), which is fluidized by light irradiation: R1—CH═N—R2  General Formula (1) wherein R1 is a substituted or unsubstituted cyclic hydrocarbon group or a substituted or unsubstituted heterocyclic group; and R2 is a substituted or unsubstituted heterocyclic group containing a nitrogen atom bonded to the nitrogen atom in the general formula (1).

    ELECTROSTATIC IMAGE DEVELOPING TONER
    27.
    发明申请
    ELECTROSTATIC IMAGE DEVELOPING TONER 审中-公开

    公开(公告)号：US20190018329A1

    公开(公告)日：2019-01-17

    申请号：US16133027

    申请日：2018-09-17

    Applicant: Konica Minolta, Inc.

    Inventor： Kouji SUGAMA ,  Hiroshi Nagasawa ,  Anju Hori ,  Noboru Ueda

    IPC: G03G9/087

    CPC classification number: G03G9/08728 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797

    Abstract: Provided is an electrostatic image developing toner comprising a toner base particle containing a binder resin and a releasing agent, wherein the binder resin comprises an amorphous vinyl resin and a crystalline polyester resin; a weight-average molecular weight of the electrostatic image developing toner is in the range of 50000 to 90000, when calculated from a chromatogram which represents a molecular weight distribution and is measured by gel permeation chromatography; a ratio of content of a resin component having a molecular weight of 100000 or more is in the range of 10 to 20% by area, in the chromatogram which represents the molecular weight distribution; the crystalline polyester resin has a melting point in the range of 65 to 85° C.; and, a ratio of content of the crystalline polyester resin in the binder resin is in the range of 5 to 20% by mass.

    PROCESS FOR PRODUCING A TONER
    28.
    发明申请
    PROCESS FOR PRODUCING A TONER 有权

    公开(公告)号：US20170168407A1

    公开(公告)日：2017-06-15

    申请号：US15370134

    申请日：2016-12-06

    Applicant: Konica Minolta, Inc.

    Inventor： Junya ONISHI ,  Shiro HIRANO ,  Noboru UEDA ,  Kouji SUGAMA ,  Aya SHIRAI

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

    CPC classification number: G03G9/0804 ,  G03G9/0819 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/08797 ,  G03G9/09328 ,  G03G9/09364 ,  G03G9/09392

    Abstract: The production process of the present invention includes: a first step of heating a dispersion containing an aqueous medium and a binder resin containing a crystalline resin to a temperature higher than or equal to the melting point of the crystalline resin in a step of aggregating and fusing a fine particle of the binder resin containing the crystalline resin to produce a toner base particle; a second step of cooling the dispersion having been heated in the first step and having a temperature higher than the recrystallization temperature Rc of the crystalline resin to a temperature lower than Rc at a temperature-lowering rate of 1° C./min or higher; and a third step of maintaining the dispersion having been cooled in the second step at a temperature higher than or equal to Rc−25° C. and lower than or equal to Rc−5° C. for 30 minutes or longer.

    ELECTROSTATIC IMAGE DEVELOPING TONER
    29.
    发明申请
    ELECTROSTATIC IMAGE DEVELOPING TONER 有权
    静电图像显影剂

    公开(公告)号：US20160370722A1

    公开(公告)日：2016-12-22

    申请号：US15092213

    申请日：2016-04-06

    Applicant: Konica Minolta, Inc.

    Inventor： Kouji SUGAMA ,  Yohei OHNO ,  Keisuke ASANO ,  Noboru UEDA

    IPC: G03G9/087

    CPC classification number: G03G9/08755 ,  G03G9/08713

    Abstract: Provided is an electrostatic image developing toner having toner mother particles containing a binder resin and a releasing agent, wherein the binder resin contains an amorphous vinyl resin and a crystalline polyester resin; the releasing agent contains a first releasing agent component containing an ester wax and a second releasing agent component containing a microcrystalline wax; a content of the first releasing agent component in the releasing agent is in the range of 40 to 98 mass %; a content of the second releasing agent component in the releasing agent is in the range of 2 to 60 mass %; and a content of the crystalline polyester resin in the binder resin is in the range of 5 to 20 mass %.

    Abstract translation: 提供一种静电图像显影调色剂，其具有含有粘合剂树脂和脱模剂的调色剂母粒，其中粘合剂树脂含有无定形乙烯基树脂和结晶聚酯树脂; 脱模剂含有含有酯蜡的第一脱模剂成分和含有微晶蜡的第二脱模剂成分; 脱模剂中的第一脱模剂成分的含量在40〜98质量％的范围内。 脱模剂中的第二脱模剂成分的含量为2〜60质量％的范围。 粘结剂树脂中的结晶性聚酯树脂的含量为5〜20质量％的范围。

    TONER FOR ELECTROSTATIC IMAGE DEVELOPMENT
    30.
    发明申请
    TONER FOR ELECTROSTATIC IMAGE DEVELOPMENT 有权
    静电图像发展的调色剂

    公开(公告)号：US20130280649A1

    公开(公告)日：2013-10-24

    申请号：US13864547

    申请日：2013-04-17

    Applicant: KONICA MINOLTA, INC.

    Inventor： Hiroshi NAGASAWA ,  Kouji SUGAMA ,  Hiroyuki KONNO ,  Takaki KAWAMURA

    IPC: G03G9/097

    CPC classification number: G03G9/09733 ,  G03G9/08711 ,  G03G9/08728 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797

    Abstract: There is provided a toner for electrostatic-image development that can obtain heat-resistant storability, fixed image strength and long-term stability of charging while having excellent low-temperature fixing property. The toner is formed with toner particles containing a binder resin and a crystalline ester compound, and the binder resin contains a styrene-acrylic resin including a structural unit derived from an acrylic ester monomer.

    Abstract translation: 提供了一种用于静电图像显影的调色剂，其可以获得耐热储存性，固定图像强度和长期的充电稳定性，同时具有优异的低温定影性能。 调色剂由含有粘合剂树脂和结晶酯化合物的调色剂颗粒形成，并且粘合剂树脂含有包含衍生自丙烯酸酯单体的结构单元的苯乙烯 - 丙烯酸树脂。

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