CROSSLINKING AGENT FOR AQUEOUS RESIN, LIQUID CONTAINING CROSSLINKING AGENT FOR AQUEOUS RESIN, AND AQUEOUS-RESIN COMPOSITION

摘要

Provided is a carbodiimide-based crosslinking agent for aqueous resins which improves the storage stability of an aqueous-resin composition containing both a crosslinking agent and an aqueous resin and which enables the aqueous resin to give cured objects having improved water resistance and improved solvent resistance. The crosslinking agent for aqueous resins comprises a hydrophobic polycarbodiimide compound and one or more water-soluble organic compounds, wherein the water-soluble organic compounds are one or more substances selected from among alkylene glycol compounds, water-soluble polymers other than the alkylene glycol compounds, and surfactants which are none of the alkylene glycol compounds and the water-soluble polymers. The crosslinking agent for aqueous resins is used to prepare both a liquid containing the crosslinking agent for aqueous resins and an aqueous-resin composition.