Acrylic polymers for inkjet ink applications

    公开(公告)号:US12018162B2

    公开(公告)日:2024-06-25

    申请号:US17287289

    申请日:2019-10-23

    申请人: Cabot Corporation

    发明人: Tianqi Liu Jinqi Xu

    摘要: Disclosed herein are inkjet ink compositions comprising: at least one pigment having attached at least one organic group having a calcium index value greater than a calcium index value of 1,2,3-benzene tricarboxylic acid; at least one acrylic polymer having an acid number of at least 150 KOH/g and a weight average molecular weight ranging from 1,000 to 15,000, wherein the at least one acrylic polymer is at least partially neutralized with a base having the following structure: wherein: A is a C2-C12 alkyl, R1 is selected from H, C1-C12 alkyl, an amine having the formula —NR3R4, and a guanidine residue having the formula —N(R5)—C(═NH)—N(R6)(R7), wherein R3 to R7 are independently selected from H and C1-C12 alkyl, and R2 is selected from H, C1-C12 alkyl, and an acid group. The inkjet ink composition further comprises an aqueous liquid medium.