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公开(公告)号：US20230147454A1
公开(公告)日：2023-05-11
申请号：US17296647
申请日：2020-04-30
Applicant: DIC Corporation
Inventor： Keisuke Sakamoto , Ayaka Yamaji , Nozomi Shimizu , Mayumi Tokuoka , Katsunori Shimada
IPC: C09B47/10 , C09B67/20 , C07D487/22
CPC classification number: C09B47/10 , C09B67/0061 , 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 depositing a halogenated zinc phthalocyanine, which is synthesized by using a compound that generates an acid by reacting with water, and the aforementioned step includes a pretreatment step of dry-crushing the halogenated zinc phthalocyanine crude pigment by using an attritor and then washing the dry-crushed halogenated zinc phthalocyanine crude pigment with water.
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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
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%.
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公开(公告)号：US12221546B2
公开(公告)日：2025-02-11
申请号：US17296647
申请日：2020-04-30
Applicant: DIC Corporation
Inventor： Keisuke Sakamoto , Ayaka Yamaji , Nozomi Shimizu , Mayumi Tokuoka , Katsunori Shimada
IPC: C09B47/10 , C07D487/22 , 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 depositing a halogenated zinc phthalocyanine, which is synthesized by using a compound that generates an acid by reacting with water, and the aforementioned step includes a pretreatment step of dry-crushing the halogenated zinc phthalocyanine crude pigment by using an attritor and then washing the dry-crushed halogenated zinc phthalocyanine crude pigment with water.
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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.
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公开(公告)号：US09904166B2
公开(公告)日：2018-02-27
申请号：US15512952
申请日：2016-02-16
Applicant: DIC Corporation
Inventor： Keisuke Sakamoto , Akira Kimura , Katsunori Shimada
CPC classification number: G03F7/0007 , C09B47/10 , C09B47/16 , G02B5/20 , G02B5/223 , G03F7/004 , G03F7/027 , G03F7/105
Abstract: Provided is a green pigment composition which includes a halogenated zinc phthalocyanine pigment and a brominated chlorinated zinc phthalocyanine derivative having a phthalimide skeleton bonded by an alkylene group, and which enables a great enhancement in contrast without decreasing luminance and coloring power, and a color filter including the green pigment composition. The green pigment composition for color filters includes from 0.1 to 10 parts of a halogenated zinc phthalocyanine pigment derivative substituted with a functional group having a phthalimide skeleton bonded by an alkylene group per 100 parts of a halogenated zinc phthalocyanine pigment, in terms of a mass, and a color filter includes the green pigment composition for color filters.
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Patent Agency Ranking
公开(公告)号：US20170299961A1
公开(公告)日：2017-10-19
申请号：US15512952
申请日：2016-02-16
Applicant: DIC Corporation
Inventor： Keisuke Sakamoto , Akira Kimura , Katsunori Shimada
CPC classification number: G03F7/0007 , C09B47/10 , C09B47/16 , G02B5/20 , G02B5/223 , G03F7/004 , G03F7/027 , G03F7/105
Abstract: Provided is a green pigment composition which includes a halogenated zinc phthalocyanine pigment and a brominated chlorinated zinc phthalocyanine derivative having a phthalimide skeleton bonded by an alkylene group, and which enables a great enhancement in contrast without decreasing luminance and coloring power, and a color filter including the green pigment composition. The green pigment composition for color filters includes from 0.1 to 10 parts of a halogenated zinc phthalocyanine pigment derivative substituted with a functional group having a phthalimide skeleton bonded by an alkylene group per 100 parts of a halogenated zinc phthalocyanine pigment, in terms of a mass, and a color filter includes the green pigment composition for color filters.
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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.
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公开(公告)号：US20230147608A1
公开(公告)日：2023-05-11
申请号：US17296665
申请日：2020-04-30
Applicant: DIC Corporation
Inventor： Keisuke Sakamoto , Ayaka Yamaji , Kazushi Suzuki , Mayumi Tokuoka , Katsunori Shimada
IPC: C09B47/10 , C09B67/20 , C07D487/22
CPC classification number: C09B47/10 , C09B67/0067 , C07D487/22
Abstract: A method for producing a halogenated zinc phthalocyanine pigment according to one embodiment includes a first step of obtaining a halogenated zinc phthalocyanine crude pigment by deposition by extracting a halogenated zinc phthalocyanine, which is synthesized by using a compound that generates an acid by reacting with water; and a second step of forming the halogenated zinc phthalocyanine crude pigment into a pigment.
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公开(公告)号：US20230141091A1
公开(公告)日：2023-05-11
申请号：US17296639
申请日：2020-04-30
Applicant: DIC Corporation
Inventor： Keisuke Sakamoto , Ayaka Yamaji , Kazushi Suzuki , Mayumi Tokuoka , Katsunori Shimada
IPC: C09B47/10
CPC classification number: C09B47/10
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 depositing a halogenated zinc phthalocyanine, which is synthesized by using an acidic compound or a compound that generates an acid by reacting with water, and the step includes a pretreatment step of kneading the halogenated zinc phthalocyanine crude pigment along with water.
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公开(公告)号：US09873796B2
公开(公告)日：2018-01-23
申请号：US15116344
申请日：2014-09-30
Applicant: DIC Corporation
Inventor： Keisuke Sakamoto , Akira Kimura , Katsunori Shimada
IPC: C09B47/10 , G02B5/20 , G02B5/22 , G02F1/1335
CPC classification number: C09B47/10 , G02B5/201 , G02B5/223 , G02F1/133514
Abstract: Provided are a green pigment composition for a color filter having high brightness and wide color reproduction range in a liquid crystal display, and a color filter formed including the same. A halogenated zinc phthalocyanine containing an average of 10 to 14 halogen atoms per molecule in which an average of 8 to 12 are bromine atoms and an average of 2 to 5 are chlorine atoms is used. As a result, film thickness is less than when using Pigment Green 7 and, thus, a color filter with high brightness and wide color reproduction range can be provided.
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