公开(公告)号：US11879064B2

公开(公告)日：2024-01-23

申请号：US16962006

申请日：2019-06-20

申请人： DIC Corporation

发明人： Shogo Yamada ,  Hiromasa Kikuchi ,  Yukiko Higuchi ,  Hidehiro Ootake

IPC分类号： C09D11/037 ,  C09B3/14 ,  C09B47/04 ,  C09B48/00 ,  C09D11/322 ,  C09D17/00

CPC分类号： C09D11/037 ,  C09B3/14 ,  C09B47/04 ,  C09B48/00 ,  C09D11/322 ,  C09D17/001 ,  C09D17/003

摘要： A technical problem of the present invention is to provide a condensed polycyclic organic pigment having excellent dispersion properties and dispersion stability. More specifically, the technical problem of the present invention is to provide a condensed polycyclic organic pigment in which a practically sufficient viscosity is achieved in terms of both the initial viscosity of a base ink and the viscosity over time of a base ink when used in the printing ink application. As a result of thorough studies on the surface state of organic pigment particles and interaction among components constituting a printing ink, it has been found that the technical problem can be solved by using a polyvalent metal inorganic salt in a condensed polycyclic organic pigment, thus accomplishing the present invention.

公开(公告)号：US20240240039A1

公开(公告)日：2024-07-18

申请号：US18288329

申请日：2022-07-28

申请人： DIC Corporation

发明人： Shogo Yamada ,  Yukiko Higuchi ,  Akira Kimura ,  Xia Yang ,  Wei Zhao

IPC分类号： C09D11/322 ,  C08K5/3437

CPC分类号： C09D11/322 ,  C08K5/3437

摘要： An object of the present invention is to provide a pigment composition that is suitable as an IJ ink and has high dispersion stability and excellent storage stability, a coloring agent containing the pigment composition, and, in particular, an IJ ink. The pigment composition of the present invention contains a quinacridone pigment and a compound represented by formula (I) below. In formula (I), n represents an integer of 1 to 8. At least C.I. Pigment Red 122 is preferably contained as the quinacridone pigment.

公开(公告)号：US10247863B2

公开(公告)日：2019-04-02

申请号：US15564892

申请日：2016-04-05

申请人： DIC Corporation

发明人： Shogo Yamada ,  Ikuro Kiyoto

IPC分类号： C09B47/04 ,  C09B47/12 ,  C09B67/04 ,  C09B67/16 ,  C09B67/20 ,  C09B67/50 ,  G02B5/20 ,  G02B5/22 ,  C09B67/12 ,  C09B67/00

摘要： Provided is an organic pigment composition for color filters, which can be used preferably for a color filter that allows to produce a liquid crystal display device which has excellent heat resistance, a brighter display screen, and accordingly higher brightness; a method for producing the same; and a color filter which includes the organic pigment composition for color filters. The color filter has higher heat resistance by using the organic pigment composition for color filters which includes a phthalocyanine pigment and a pigment derivative in which the ratio of a multi-substituted phthalimide alkyl group to the whole amount of the pigment derivative is limited.

公开(公告)号：US20210071015A1

公开(公告)日：2021-03-11

申请号：US16962006

申请日：2019-06-20

申请人： DIC Corporation

发明人： Shogo Yamada ,  Hiromasa Kikuchi ,  Yukiko Higuchi ,  Hidehiro Ootake

IPC分类号： C09D11/037 ,  C09B47/04 ,  C09B48/00 ,  C09B3/14 ,  C09D17/00 ,  C09D11/322

摘要： A technical problem of the present invention is to provide a condensed polycyclic organic pigment having excellent dispersion properties and dispersion stability. More specifically, the technical problem of the present invention is to provide a condensed polycyclic organic pigment in which a practically sufficient viscosity is achieved in terms of both the initial viscosity of a base ink and the viscosity over time of a base ink when used in the printing ink application. As a result of thorough studies on the surface state of organic pigment particles and interaction among components constituting a printing ink, it has been found that the technical problem can be solved by using a polyvalent metal inorganic salt in a condensed polycyclic organic pigment, thus accomplishing the present invention.

公开(公告)号：US11965099B2

公开(公告)日：2024-04-23

申请号：US17979240

申请日：2022-11-02

申请人： DIC CORPORATION

发明人： Shogo Yamada ,  Hiromasa Kikuchi ,  Hidehiro Otake

IPC分类号： C09B19/00 ,  C07D498/22 ,  C09D11/037

CPC分类号： C09B19/00 ,  C07D498/22 ,  C09D11/037

摘要： An object of the present invention is to provide a dioxazine pigment having excellent fluidity. More specifically, an object of the present invention is to provide a dioxazine pigment in which practically sufficient fluidity is attained in both (1) initial viscosity and (2) storage stability when the dioxazine pigment is used in a printing ink application. The object is attained by providing a dioxazine pigment having a contact angle with respect to water according to an infiltration rate method in a range of 30° to 75°, and a contact angle with respect to 1-bromonaphthalene according to an infiltration rate method in a range of 30° to 75°.

公开(公告)号：US20240084155A1

公开(公告)日：2024-03-14

申请号：US18274904

申请日：2021-12-09

申请人： DIC Corporation

发明人： Shogo Yamada ,  Takuya Yoshida ,  Akira Kimura

IPC分类号： C09D17/00 ,  C09B67/08 ,  C09D11/037

CPC分类号： C09D17/003 ,  C09B67/0007 ,  C09D11/037

摘要： An object that is to be achieved by the present invention is to provide an azo pigment having excellent transparency, suitable dispersibility, and a low viscosity, an ink, and the like. An azo pigment according to the present invention has a zeta potential of −80 to −30 mV in isopropanol (IPA). The content of a metal element in the azo pigment is preferably 0.05 to 2.00 parts by mass relative to 100 parts by mass of the azo pigment. The metal element is preferably an iron element. The ratio (Fe/C) of the concentration Fe (atomic %) of an iron element in the surfaces of particles of the azo pigment to the concentration C (atomic %) of a carbon element in the surfaces of the particles of the azo pigment which are determined by X-ray photoelectron spectroscopy is preferably 0.20 or less.

公开(公告)号：US20230067213A1

公开(公告)日：2023-03-02

申请号：US17979240

申请日：2022-11-02

申请人： DIC CORPORATION

发明人： Shogo Yamada ,  Hiromasa Kikuchi ,  Hidehiro Otake

IPC分类号： C09B19/00 ,  C07D498/22 ,  C09D11/037

摘要： An object of the present invention is to provide a dioxazine pigment having excellent fluidity. More specifically, an object of the present invention is to provide a dioxazine pigment in which practically sufficient fluidity is attained in both (1) initial viscosity and (2) storage stability when the dioxazine pigment is used in a printing ink application. The object is attained by providing a dioxazine pigment having a contact angle with respect to water according to an infiltration rate method in a range of 30° to 75°, and a contact angle with respect to 1-bromonaphthalene according to an infiltration rate method in a range of 30° to 75°.

公开(公告)号：US20240084146A1

公开(公告)日：2024-03-14

申请号：US18274915

申请日：2021-12-16

申请人： DIC Corporation

发明人： Shogo Yamada ,  Akira Kimura

IPC分类号： C09C1/48 ,  C08K3/08 ,  C09C1/00 ,  C09D11/324

CPC分类号： C09C1/48 ,  C08K3/08 ,  C09C1/0081 ,  C09D11/324 ,  C01P2002/70 ,  C01P2006/90 ,  C08K2003/0856

摘要： An object of the present invention is to provide a carbon black, an ink, and the like having excellent dispersion stability. A carbon black of the present invention includes iron element in an amount of 0.01 to 2.00 parts by mass per 100 parts by mass of the carbon black. Preferably, a ratio of Fe/C is 0.001 to 0.010, where Fe is a concentration in atomic % of the iron element on a surface of particles of the carbon black, and C is a concentration in atomic % of elemental carbon on the surface of the particles of the carbon black, as determined by X-ray photoelectron spectroscopy.

公开(公告)号：US20210189136A1

公开(公告)日：2021-06-24

申请号：US16757541

申请日：2018-11-15

申请人： DIC Corporation

发明人： Shogo Yamada ,  Hiromasa Kikuchi ,  Hidehiro Otake

IPC分类号： C09B19/00 ,  C09D11/037 ,  C07D498/22

摘要： An object of the present invention is to provide a dioxazine pigment having excellent fluidity. More specifically, an object of the present invention is to provide a dioxazine pigment in which practically sufficient fluidity is attained in both (1) initial viscosity and (2) storage stability when the dioxazine pigment is used in a printing ink application. The object is attained by providing a dioxazine pigment having a contact angle with respect to water according to an infiltration rate method in a range of 30° to 75°, and a contact angle with respect to 1-bromonaphthalene according to an infiltration rate method in a range of 30° to 75°.

公开(公告)号：US20180095205A1

公开(公告)日：2018-04-05

申请号：US15564892

申请日：2016-04-05

申请人： DIC Corporation

发明人： Shogo Yamada ,  Ikuro Kiyoto

IPC分类号： G02B5/22 ,  C09B47/04 ,  C09B67/00 ,  C09B67/12 ,  C09B67/04

CPC分类号： G02B5/223 ,  C09B47/04 ,  C09B67/0002 ,  C09B67/0016 ,  C09B67/0032

摘要： Provided is an organic pigment composition for color filters, which can be used preferably for a color filter that allows to produce a liquid crystal display device which has excellent heat resistance, a brighter display screen, and accordingly higher brightness; a method for producing the same; and a color filter which includes the organic pigment composition for color filters. The color filter has higher heat resistance by using the organic pigment composition for color filters which includes a phthalocyanine pigment and a pigment derivative in which the ratio of a multi-substituted phthalimide alkyl group to the whole amount of the pigment derivative is limited.