公开(公告)号：US20220002550A1

公开(公告)日：2022-01-06

申请号：US17289024

申请日：2020-04-28

Applicant: DIC Corporation

Inventor： Keisuke Sakamoto ,  Kentaro Oishi ,  Ryousuke Asami ,  Mayumi Tokuoka ,  Katsunori Shimada ,  Keisuke Fujisawa

IPC: C09B47/10 ,  C09B67/20

Abstract: There is provided a novel halogenated zinc phthalocyanine pigment for a color filter, which can form a green color filter having excellent contrast and high luminance. A halogenated zinc phthalocyanine pigment for a color filter shows, in a Raman spectrum, a peak intensity of 3.0% or more at 716±2.2 cm−1 when a peak intensity at 650±10 cm−1 is regarded as 100%.

公开(公告)号：US20230101363A1

公开(公告)日：2023-03-30

申请号：US17798660

申请日：2021-06-10

Applicant: DIC Corporation

Inventor： Kazushi Suzuki ,  Ryousuke Asami

IPC: C08F265/06 ,  C08K3/22 ,  C08K5/3437 ,  C08K5/42 ,  C09D17/00

Abstract: A problem to be solved by the present invention is providing a coloring composition containing a perylene-based compound such as C.I. Pigment Violet 29 while achieving high dispersion into a glycol-based solvent, the coloring composition being usable in a display production process without causing insufficient resist curing or a drop in spectral purity. The coloring composition of the present invention contains a sulfonate compound represented by the following formula (1) and C.I. Pigment Violet 29. A-SO3M.nH2O Formula (1) [In the formula (1), A represents a hydrocarbon group having 1 to 20 carbon atoms, optionally having within the structure a halogen, a boron, a nitrogen, a sulfur, a phosphorus, or an oxygen, M represents one equivalent of a cation having a valence of 1 to 3 excluding H, and n represents an integer of 0 to 5]

公开(公告)号：US12139615B2

公开(公告)日：2024-11-12

申请号：US17296656

申请日：2020-04-30

Applicant: DIC Corporation

Inventor： Keisuke Sakamoto ,  Kentaro Oishi ,  Ryousuke Asami ,  Mayumi Tokuoka ,  Katsunori Shimada

IPC: C07D487/22 ,  C09B47/10 ,  C09B67/20

Abstract: A method for producing a halogenated zinc phthalocyanine pigment includes a step of forming a halogenated zinc phthalocyanine crude pigment into a pigment. The halogenated zinc phthalocyanine crude pigment is obtained by deposition of a halogenated zinc phthalocyanine, which is synthesized by using a compound that generates an acid by reacting with water, and the step includes a pretreatment step of heating the halogenated zinc phthalocyanine crude pigment in water to obtain a halogenated zinc phthalocyanine prepigment having a pH of 5.0 or more.

公开(公告)号：US20230144572A1

公开(公告)日：2023-05-11

申请号：US17296656

申请日：2020-04-30

Applicant: DIC Corporation

Inventor： Keisuke Sakamoto ,  Kentaro Oishi ,  Ryousuke Asami ,  Mayumi Tokuoka ,  Katsunori Shimada

IPC: C09B47/10 ,  C09B67/20 ,  C07D487/22

CPC classification number: C09B47/10 ,  C09B67/0066 ,  C07D487/22

Abstract: A method for producing a halogenated zinc phthalocyanine pigment includes a step of forming a halogenated zinc phthalocyanine crude pigment into a pigment. The halogenated zinc phthalocyanine crude pigment is obtained by deposition of a halogenated zinc phthalocyanine, which is synthesized by using a compound that generates an acid by reacting with water, and the step includes a pretreatment step of heating the halogenated zinc phthalocyanine crude pigment in water to obtain a halogenated zinc phthalocyanine prepigment having a pH of 5.0 or more.

公开(公告)号：US11976199B2

公开(公告)日：2024-05-07

申请号：US17289024

申请日：2020-04-28

Applicant: DIC Corporation

Inventor： Keisuke Sakamoto ,  Kentaro Oishi ,  Ryousuke Asami ,  Mayumi Tokuoka ,  Katsunori Shimada ,  Keisuke Fujisawa

IPC: C09B47/10 ,  C09B67/20 ,  G02B5/20

CPC classification number: C09B47/10 ,  C09B67/0067 ,  G02B5/20

Abstract: There is provided a novel halogenated zinc phthalocyanine pigment for a color filter, which can form a green color filter having excellent contrast and high luminance. A halogenated zinc phthalocyanine pigment for a color filter shows, in a Raman spectrum, a peak intensity of 3.0% or more at 716±2.2 cm−1 when a peak intensity at 650±10 cm−1 is regarded as 100%.

公开(公告)号：US20230287218A1

公开(公告)日：2023-09-14

申请号：US18013406

申请日：2021-06-03

Applicant: DIC Corporation

Inventor： Keisuke Sakamoto ,  Yuji Tamura ,  Kentaro Oishi ,  Yuta Hidaka ,  Takeshi Yamada ,  Ryousuke Asami ,  Kengo Yasui ,  Mayumi Tokuoka ,  Katsunori Shimada

IPC: C09B47/10 ,  C09B67/20 ,  C09B67/50

CPC classification number: C09B47/10 ,  C09B67/006 ,  C09B67/0026

Abstract: The halogenated zinc phthalocyanine pigment is for use as a green pigment for color filters and capable of achieving high brightness. In the halogenated zinc phthalocyanine pigment, when a coating film containing 1.00 part by mass of the pigment, 0.95 parts by mass of a benzyl methacrylate-methacrylic acid copolymer, and 0.30 parts by mass of a dimethylaminoethyl methacrylate copolymer is heated at 230° C. for one hour to form an evaluation coating film having a thickness of 4 μm, an average scattering intensity at scattering angles 2θ in a range of 17° to 21° is determined from a two-dimensional scattering image obtained by GI-WAXS measurement of the evaluation coating film, and a normalized average scattering intensity is determined such that the average scattering intensity at an azimuth of 45° is 1, the normalized average scattering intensity at azimuths of 5° to 89° is 0.70 to 1.15.