US 11,718,758 B2
Aqueous dispersion of colored particles
Hisato Haga, Tokyo (JP); Tetsuji Murase, Kawagoe (JP); Sho Shibusawa, Kawagoe (JP); and Tomoaki Horie, Kawagoe (JP)
Assigned to MITSUBISHI PENCIL COMPANY, LIMITED, Tokyo (JP)
Appl. No. 16/772,285
Filed by MITSUBISHI PENCIL COMPANY, LIMITED, Tokyo (JP)
PCT Filed Dec. 11, 2018, PCT No. PCT/JP2018/045477
§ 371(c)(1), (2) Date Jun. 12, 2020,
PCT Pub. No. WO2019/117134, PCT Pub. Date Jun. 20, 2019.
Claims priority of application No. 2017-239852 (JP), filed on Dec. 14, 2017.
Prior Publication US 2021/0071006 A1, Mar. 11, 2021
Int. Cl. C09B 69/10 (2006.01); C09D 11/328 (2014.01); B41J 2/01 (2006.01); C09D 11/17 (2014.01); C09D 11/107 (2014.01); C09D 133/14 (2006.01); C09D 133/16 (2006.01); C09B 67/20 (2006.01); C09B 67/46 (2006.01); C09D 7/41 (2018.01); C09D 17/00 (2006.01); C09D 11/322 (2014.01); C09D 201/02 (2006.01)
CPC C09B 69/10 (2013.01) [C09B 67/009 (2013.01); C09B 67/0066 (2013.01); C09B 69/103 (2013.01); C09B 69/105 (2013.01); C09B 69/109 (2013.01); C09D 7/41 (2018.01); C09D 11/107 (2013.01); C09D 11/17 (2013.01); C09D 11/328 (2013.01); C09D 17/001 (2013.01); C09D 133/14 (2013.01); C09D 133/16 (2013.01); B41J 2/01 (2013.01); C09D 11/322 (2013.01); C09D 201/02 (2013.01)] 12 Claims
 
1. An aqueous dispersion of colored particles comprising a polymer having at least a unit of a monomer derived from a dye having a polymerizable unsaturated group, wherein a weight average molecular weight of the colored particles is from 300,000 to 3,000,000, and
wherein the monomer is a compound represented by General Formula (2) below:

OG Complex Work Unit Chemistry
where R1 represents a hydrogen atom or a methyl group,
R601 represents an alkyl group having 1 to 6 carbon atoms,
R602 and R603 each independently represent an alkyl group having 1 to 30 carbon atoms,
Y2 represents —O— or —NR10—, where R10 represents a hydrogen atom or an alkyl group having 1 to 12 carbon atoms,
An− represents an anion,
A1 represents an alkylene group having 1 to 21 carbon atoms which has in the chain thereof and/or at the terminal thereof at least one group selected from —O—, —OCO—, —COO—, —NHCO—, —CONH—, —NHCONH—, an arylene group, and a group represented by General Formula (2-1) below:

OG Complex Work Unit Chemistry
where Y1 represents a nitrogen atom or a group represented by General Formula (2-2) below:

OG Complex Work Unit Chemistry
n1 represents an integer from 0 to 2, and n2 represents an integer from 2 to 4, where n1+n2 is 3 or 4;
an alkylene group having 1 to 21 carbon atoms which has in the chain thereof and/or at the terminal thereof at least one group selected from —O—, —OCO—, —COO—, —NHCO—,—CONH—, —NHCONH—, an arylene group, and the group represented by General Formula (2-1), and also has a hydroxy group as a substituent;
an alkylene group having 1 to 21 carbon atoms which has a hydroxy group as a substituent; or an alkylene group having 1 to 21 carbon atoms.
 
7. An aqueous dispersion of colored particles comprising a polymer having at least a unit of a monomer derived from a dye having a polymerizable unsaturated group, wherein a weight average molecular weight of the colored particles is from 300,000 to 3,000,000, and
wherein the monomer is a compound represented by General Formula (3) below:

OG Complex Work Unit Chemistry
where R1 represents a hydrogen atom or a methyl group,
R701 represents an alkyl group having 1 to 30 carbon atoms,
Y2 represents —O— or —NR10—, where R10 represents a hydrogen atom or an alkyl group having 1 to 12 carbon atoms,
A1 represents an alkylene group having 1 to 21 carbon atoms which has in the chain thereof and/or at the terminal thereof at least one group selected from —O—, —OCO—, —COO—, —NHCO—, —CONH—, —NHCONH—, an arylene group, and a group represented by General Formula (2-1) below:

OG Complex Work Unit Chemistry
where Y1 represents a nitrogen atom or a group represented by General Formula (2-2) below:

OG Complex Work Unit Chemistry
n1 represents an integer from 0 to 2, and n2 represents an integer from 2 to 4, where n1+n2 is 3 or 4;
an alkylene group having 1 to 21 carbon atoms which has in the chain thereof and/or at the terminal thereof at least one group selected from —O—, —OCO—, —COO—, —NHCO—, —CONH—, —NHCONH—, an arylene group, and the group represented by General Formula (2-1), and also has a hydroxy group as a substituent;
an alkylene group having 1 to 21 carbon atoms which has a hydroxy group as a substituent; or an alkylene group having 1 to 21 carbon atoms.