着色粒子水分散体

Japanese Patent JP7284895

B2

Provided is an aqueous dispersion of colored particles being excellent in water resistance and light resistance, which is suitable for colorants for writing instrument inks, inkjet inks, painting materials, aqueous coatings, and the like. The aqueous dispersion of colored particls includes a polymer having at least a unit of a monomer derived from a dye having a polymerizable unsaturated group. The monomer derived from the dye is preferably derived from the compound represented by General Formula (1) below:{where Dye represents a dye residue, R₁represents a hydrogen atom or a methyl group,Y₂represents -O- or -NR₁₀-, where R₁₀represents a hydrogen atom or an alkyl group,A₁represents an alkylene group having at least one group selected from -OCO-, -COO-, -NHCONH-, and the like in the chain thereof and/or at the terminal thereof; an alkylene group having at least one group selected from -OCO-, -COO-, and -NHCONH- in the chain thereof and/or at the terminal thereof, and also has a hydroxy group as a substituent; an alkylene group which has a hydroxy group as a substituent; or an alkylene group} .

Hisato Haga
Tetsushi Murase
Sho Shibusawa
Tomoaki Horie

JP2019559653A

June 01, 2023

December 11, 2018

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MITSUBISHI PENCIL CO.,LTD.

C09D17/00; B41J2/01; B41M5/00; C08F120/10; C08F120/56; C09B67/46; C09B69/10; C09D5/06; C09D7/41; C09D11/17; C09D11/328; C09D13/00; C09D201/00

JP2004002529A
JP7304994A
JP2005036039A
JP2017002121A
JP2006525382A

WO2015133578A1

Eisuke Fujimoto
Masayoshi Kanda
Akishige Miyao
Nobuyuki Baba

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