Cabot Corporation

Jinqi Xu

Paul S Palumbo

Tianqi Liu

Heather E Clarke

Jodi A Bates

Andrea Lebed

Alexander I Shaknovich

Alexander I Shakhnovich

Robert J Anderson

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 C-Calkyl, Ris selected from H, C-Calkyl, an amine having the formula —NRR, and a guanidine residue having the formula —N(R)—C(═NH)—N(R)(R), wherein Rto Rare independently selected from H and C-Calkyl, and Ris selected from H, C-Calkyl, and an acid group. The inkjet ink composition further comprises an aqueous liquid medium.

Acrylic polymers for inkjet ink applications

Disclosed herein are inkjet ink compositions comprising: at least one pigment and at least one polyurethane comprising: at least one polypropylene glycol, and at least one diisocyanate. The at least one polyurethane contains at least 70 wt % polypropylene glycol relative to the at least one polyurethane and has a weight average molecular weight (M) of no more than 80,000.

Inkjet ink compositions

Disclosed herein are inkjet ink compositions comprising a polymer comprising the repeat units (A), (B), and (C), wherein: (A) is selected from &#x2014;N(R)(R)&#x2014; and &#x2014;N(R)&#x2014;; (B) is selected from C-Calkylene; C-Ccycloalkylene; C-Cheterocycloalkylene; arylene; heteroarylene; C-Cether; C-Cthioether; C-Cester; C-Cacetal; C-Camide; bisphenols; and oligomer and polymer moieties selected from polyether, polyester, polyamines, polycarbonate, polyacetal, polythioether, polyester amide, polyurethane, polyacrylate, polyolefin, and polyalkylsiloxane, and (C) comprises at least one group selected from: (i) &#x2014;C(R) (R)&#x2014;C(R)(OH)&#x2014;(C(R)(R))m-, (ii) &#x2014;C(R)(R)&#x2014;C(R)(H)&#x2014;C(O)&#x2014;, and (iii) &#x2014;C(R)(R)&#x2014;C(R)(H)&#x2014;S(O)(O); and (A) is bonded to the &#x2014;C(R)(R)&#x2014; group of (C), and (B) is bonded to (C).

Amphoteric polymers and use in inkjet ink compositions

Disclosed herein are polymers, which can be incorporated in pigment dispersions and inkjet ink compositions, comprising first monomers selected from ethylenically unsaturated hydrophobic monomers, and second monomers selected from maleic anhydride, maleic acid, and salts, esters, imides, and amides thereof. The polymers can have a portion of the second monomers functionalized with at least one organic group having a calcium index value greater than or equal to a calcium index value of phenylphosphonic acid. Additionally and/or alternatively, the at least one polymer can be crosslinked via the second monomers. Dispersions and inkjet ink compositions comprising such polymers can also further comprise at least one pigment and a liquid vehicle. Also disclosed are methods of making such polymers.

Polymers for inkjet ink compositions

Disclosed herein inkjet ink compositions comprising: (a) a carbon black having the following properties: OAN&#x2265;170 mL/100 g; and STSA ranging from 160 to 220 m/g; (b) at least one polymeric dispersant selected from polyoxyethylene/polyoxypropylene block copolymers, styrene-acrylic resins, styrene-methacrylic resins, styrene-maleic acid copolymers, and styrene-maleic anhydride copolymers; (c) at least one surfactant selected from ethoxylated siloxanes, succinic acid esters, and succinic acid salts; and (d) at least one polyurethane.

Disclosed herein are composite particles comprising; a pigment; at least one ionic synergist adsorbed to the pigment surface; and at least one ionic polymer coating the pigment surface comprising the at least one synergist, wherein the at least one synergist and the at least one polymer have opposing charges, and wherein in the composite, a total charge of the at least one polymer is greater than a total charge of the at least one synergist. Also disclosed are dispersions and inkjet ink compositions comprising composite particles.

Pigment composites comprising synergists and polymer coatings

Disclosed herein are particulate core-shell materials, comprising a core comprising a polyurethane; and a shell comprising a polyacrylate, wherein the shell coats the core. Also disclosed are methods of making particulate core-shell materials, and aqueous dispersions and inkjet ink compositions comprising the same.

Core-shell polymeric materials

Polyurethanes containing at least one bisphosphonate group, as well as related compositions, articles, and methods, are disclosed.

Growing community of inventors

Westford, MA, United States of America

Jinqi Xu