CATIONIC EMULSION HAVING POLYMER CORE-SHELL STRUCTURE, AQUEOUS INK, AND RECORDING MEDIUM

摘要

The invention provides a cationic emulsion having a polymer core-shell structure that exhibits excellent substrate adhesiveness, water resistance, alcohol resistance, and high gloss when used in an aqueous ink, and exhibits excellent color developing properties and water resistance when used in a recording medium, specifically, a cationic emulsion having a polymer core-shell structure comprising component (A) and component (B) and having a mass ratio of component (A):component (B) of 25:75-75:25.;(A) Emulsion polymer core component obtained by polymerizing a monomer having a vinyl chloride monomer as a constituent.;(B) Emulsion polymer shell component, having a structure obtained by polymerizing a monomer mixture having, as constituents: styrenes and a compound of formula (1); or styrenes, a compound of formula (1), and a (meth)acrylic ester having 1-22 carbon atoms in the ester part as a compound (2); in which the compound of formula (1) is 20-45 mass % in the monomer mixture.;

主权项

1. A cationic emulsion comprising a core-shell structure polymer consisting of components (A) and (B) in a weight ratio (A)/(B) of 25/75 to 75/25,
(A) a core component of the emulsion polymer obtained by polymerizing a monomer comprising a vinyl chloride monomer as a constituent, (B) a shell component of the emulsion polymer having a structure obtained by polymerizing a monomer mixture comprising a styrene and a compound of the general formula (1), or a styrene, a compound of formula (1), and a compound (2) which is a (meth)acrylate having 1 to 22 carbon atoms in its ester moiety as constituents wherein the compound of formula (1) is 20 to 45% by weight of the monomer mixture, the general formula (1):wherein R1 is hydrogen or methyl, R2 and R3 are each independently alkyl, n and m are each independently an integer of at least 1, and X is halogen, methyl or hydrogen.