30-05-2019 дата публикации
Номер: US20190161631A1
Принадлежит:
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. 197-. (canceled)98. A method of making a polymer comprising , [{'sub': 2', '1', '12', '5', '20', '6', '20, 'sup': 1', '2', '1', '2', '1', '2, '(i) at least one polymer 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, wherein the ethylenically unsaturated hydrophobic monomers comprise the formula CH═CRR, where Rand Rare independently selected from H, C-Calkyl, C-Caryl, and C-Calkaryl, and the carbon atoms of Rand Rcan be optionally substituted with at least one heteroatom selected from O, N, and S, and'}, '(ii) at least one crosslinking agent selected from epoxy-containing compounds; and, '(a) combining(b) forming the polymer.99. The method of claim 98 , wherein the at least one crosslinking agent further comprises boric acid.100. The method of claim 98 , wherein prior to or simultaneous with the combining the at least one polymer with at least one crosslinking agent claim 98 , the method further comprises hydrolyzing the at least one polymer.101. The method of claim 98 , wherein the second monomers are selected from maleic ...
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