公开(公告)号：US20240391905A1

公开(公告)日：2024-11-28

申请号：US18689199

申请日：2022-07-15

Applicant: DIC Corporation

Inventor： Yasuhiro Kuwana ,  Xia Yang ,  Guohong Sui ,  Shumei Ji ,  Wei Zhao

IPC: C07D403/14 ,  C08K5/3417 ,  C09B23/01 ,  C09D5/33 ,  C09D175/14

Abstract: An object is to provide bipyrrolinone compound that has a low absorption for wavelengths in the infrared region and exhibits a high degree of blackness when used as a black colorant. Another object is to provide articles including the compound, and examples of the articles include inks, printed matter, coating compositions, coated articles, plastics, fibers, films, cosmetics, and molded articles and further include articles in which any of the foregoing articles is used, such as near-infrared-transparent articles, wavelength-controlled devices, filters for infrared sensors, filters for solid-state image sensing devices, covers for LiDAR, coatings for vehicles equipped with an autonomous driving system, and black matrices for image display devices. A bipyrrolinone compound having a specific structure has been discovered, and the compound has been discovered to have a low absorption for wavelengths in the infrared region and have a high degree of blackness. Accordingly, the objects have been achieved.

公开(公告)号：US20240240039A1

公开(公告)日：2024-07-18

申请号：US18288329

申请日：2022-07-28

Applicant: DIC Corporation

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

IPC: C09D11/322 ,  C08K5/3437

CPC classification number: C09D11/322 ,  C08K5/3437

Abstract: 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：US20230312948A1

公开(公告)日：2023-10-05

申请号：US18009403

申请日：2020-06-28

Applicant: DIC Corporation

Inventor： Shumei Ji ,  Issei Masuko ,  Masaki Hosaka ,  Kyoichi Okada ,  Nagatoshi Kobayashi ,  Xiyang Liao ,  Wei Zhao

IPC: C09D11/037 ,  C09D17/00 ,  C09D11/102 ,  C09D171/02 ,  C09B67/20 ,  C09B67/46

CPC classification number: C09D11/037 ,  C09D17/003 ,  C09D11/102 ,  C09D171/02 ,  C09B67/0066 ,  C09B67/009

Abstract: The issue of the present invention is to provide a disazo pigment in which the polychlorinated biphenyl (PCB) content in addition to the primary aromatic amine (PAA) content is reduced. The present invention provides a pigment composition containing a disazo pigment, an alkylamine that has an alkyl group having a carbon number of 8 or more, and a poly(oxyethylene) alkyl ester that has an alkyl group having a carbon number of 8 or more. Preferably, the disazo pigment includes at least one disazo pigment selected from a group consisting of C.I. Pigment Yellow 83, C.I. Pigment Yellow 13, and C.I. Pigment Yellow 14.

公开(公告)号：US20230102456A1

公开(公告)日：2023-03-30

申请号：US17766298

申请日：2019-10-09

Applicant: DIC Corporation

Inventor： Meng Li ,  Shingo Takada ,  Tomoki Dohi ,  Masamichi Hayashi ,  Jianjun Yuan ,  Taro Morimitsu ,  Shaowei Yang ,  Cheng Liu ,  Wei Zhao

IPC: C09C1/40 ,  C09C3/06 ,  C09C3/04 ,  C09C3/00

Abstract: The present invention provides an alumina particle containing molybdenum (Mo) and an inorganic coating part provided on the surface of the alumina particle.

公开(公告)号：US12264108B2

公开(公告)日：2025-04-01

申请号：US18254296

申请日：2020-12-16

Applicant: DIC Corporation

Inventor： Shaowei Yang ,  Minoru Tabuchi ,  Jianjun Yuan ,  Cheng Liu ,  Meng Li ,  Wei Zhao ,  Jian Guo

IPC: C04B35/488 ,  C04B35/64

Abstract: It relates to zirconia particles containing molybdenum and each having a polyhedron shape. The molybdenum is preferably unevenly distributed in surface layers of the zirconia particles. It also relates to a method for producing the zirconia particles. The method includes mixing a zirconium compound and a molybdenum compound to form a mixture and firing the mixture.

公开(公告)号：US20230131773A1

公开(公告)日：2023-04-27

申请号：US17766306

申请日：2019-10-09

Applicant: DIC Corporation

Inventor： Meng Li ,  Shingo Takada ,  Tomoki Dohi ,  Jianjun Yuan ,  Cheng Liu ,  Wei Zhao ,  Shaowei Yang

IPC: C01F7/442 ,  C01F7/30

Abstract: The composite particle of the present invention includes an alumina particle having a card-house structure which is formed of three or more pieces of plate-like alumina and in which the pieces of plate-like alumina are fixed to each other; and an inorganic coating part provided on a surface of the plate-like alumina.

公开(公告)号：US20240101829A1

公开(公告)日：2024-03-28

申请号：US18271565

申请日：2021-12-31

Applicant: DIC Corporation

Inventor： Meng Li ,  Takanori Watanabe ,  Jianjun Yuan ,  Shaowei Yang ,  Xuan Li ,  Wei Zhao ,  Jian Guo

IPC: C09C1/00 ,  C08K9/02 ,  C09D5/36 ,  C09D7/40 ,  C09D7/62 ,  C09D11/037

CPC classification number: C09C1/0051 ,  C08K9/02 ,  C09C1/0021 ,  C09C1/0024 ,  C09D5/36 ,  C09D7/62 ,  C09D7/70 ,  C09D11/037 ,  C01P2002/52 ,  C01P2004/03 ,  C01P2004/24 ,  C01P2004/84 ,  C09C2200/1016 ,  C09C2200/308 ,  C09C2220/103 ,  C09C2220/106

Abstract: Composite particles of the present invention include alumina particles and an inorganic coating disposed on a surface of the alumina particles, the alumina particles containing molybdenum (Mo), the inorganic coating including a composite metal oxide.

公开(公告)号：US20240059899A1

公开(公告)日：2024-02-22

申请号：US18271681

申请日：2021-01-13

Applicant: DIC Corporation

Inventor： Meng Li ,  Takanori Watanabe ,  Jianjun Yuan ,  Shaowei Yang ,  Xuan Li ,  Wei Zhao ,  Jian Guo

IPC: C09C1/40 ,  C09C3/06

CPC classification number: C09C1/407 ,  C09C3/063 ,  C01P2002/52 ,  C01P2004/01 ,  C01P2004/20 ,  C01P2004/50 ,  C01P2004/61 ,  C01P2004/84

Abstract: The composite particles contain alumina particles with a card-house structure formed of three or more plate-like alumina particles that adhere to each other and an inorganic covering portion located on a surface of the plate-like alumina particles and containing a composite metal oxide.

公开(公告)号：US20230257588A1

公开(公告)日：2023-08-17

申请号：US18009427

申请日：2020-06-28

Applicant: DIC Corporation

Inventor： Shumei Ji ,  Issei Masuko ,  Masaki Hosaka ,  Kyoichi Okada ,  Nagatoshi Kobayashi ,  Xiyang Liao ,  Wei Zhao

IPC: C09B35/039 ,  C09D11/037

CPC classification number: C09B35/039 ,  C09D11/037

Abstract: The issue of the present invention is to provide a disazo pigment with high safety in which the content of chemical substances that may be harmful, in particular, in the food packaging field and the like and that may be regulated substances is reduced. A disazo pigment according to the present invention has a polychlorinated biphenyl content of less than 15 ppm and a primary aromatic amine content of less than 700 ppm. Preferably, the disazo pigment is at least one selected from a group consisting of C.I. Pigment Yellow 83, C.I. Pigment Yellow 13, and Cl. Pigment Yellow 14.