AMBIENT TEMPERATURE-CURABLE WATER-BASED RESIN COMPOSITION CONTAINING WATER-BASED URETHANE GRAFT COPOLYMER AND COATING AGENT OR INK USING THE COMPOSITION

摘要

PURPOSE: To provide an ambient temperature-curable water-based resin composition containing a specific water-based polyurethane graft copolymer, and to provide water-based coating agent or ink using the composition. ;CONSTITUTION: The objective composition comprising (1) a graft copolymer made up of (a) a water-based polyurethane as the skeletal polymer component and (b) as the graft chain component, a polymer made up from polymerizable unsaturated monomer, (2) a polyfunctional hydrazide compound, (c) an organic solvent miscible with water and (d) water. In this case, the skeletal polymer component represents a polyol-isocyanate polyaddition reaction product made up from, as the essential components, (A) hydroxyl-contg. monomer having α,β-ethylenic double bond, (B) a polyhydroxy compound having at least one carboxyl group and at least two hydroxyl groups, (C) a polyhydroxy compound having at least two hydroxyl groups, and (D) an isocyanate compound having at least two isocyanate groups.;COPYRIGHT: (C)1995,JPO