Patent ID: 7112619
Filing Date: 2006-09-26
Classification: C09D

Abstract:
1. A water-based ink comprising an aqueous dispersion of water-insoluble vinyl polymer particles containing a pigment, wherein said water-insoluble vinyl polymer is prepared by copolymerizing a monomer mixture comprising: (a) a monomer having a salt-forming group, (b) 10–70 wt. % of a monomer having a long-chain alkyl group having 16 to 30 carbon atoms, (c) a macromer, (d) a monomer having a polyoxyalkylene group, and (e) a monomer copolymerizable with the monomer having a salt-forming group (a), the monomer having a long-chain alkyl group (b), the macromer (c) and the monomer having a polyoxyalkylene group (d).