SURFACE MODIFIED PIGMENT PARTICLES, METHOD OF PREPARATION AND APPLICATION THEREOF

The present invention relates to surface modified carbon black pigment particles, comprising: a surface on the carbon black pigment particles containing a functional group Q; and a modifying compound M bonded to the surface via hydrogen bonds or via a covalent bond with the functional group Q to form the group -Q-M on the surface; wherein: the modifying compound M comprises a product formed by a full or partial hydrolysis of a compound of Formula (1): wherein: Æ is a linear, branched or dendritic polymeric chain having a molecular weight from about 100 to about 5,000,000; L is -NR 3 C(O)NH-, -OC(O)NH-, -C(O)OCH 2 CH(OH)CH 2 -, -OCH 2 CH(OH)CH 2 -, -NHCH 2 CH(OH)CH 2 -, -alkylene-, -C(O)O-, -C(O)NR 3 -, -SO 2 NR 3 -, -SO 2 -, -NR 3 -, =N-, =N + -, -O- or -S-; each E independently is alkylene, arylene, alkylarylene, arylalkylene, alkyleneamino, alkyleneimino, alkyleneoxyalkylene, aryleneoxy, aryleneoxyalkylene, oxaalkylene, oxyalkylene, dioxyalkylene or oxyarylene; each R 1 independently is H, hydroxyl, oxyalkyl, oxyalkylenearyl, halogen, acetate or amine; each R 2 independently is alkyl, cycloalkyl, cycloheteroalkyl, aryl or alkylenearyl;R 3 is H, alkyl, aryl or alkylaryl; m = 1 to 3; n = 0 to 2; m+n = 3; and x = 1 or 2.