| abstract |
[57] [Summary] [Problem] Adhesion performance equivalent to that of a solvent-based adhesive using water-based urethane resin containing only nonionic hydrophilic groups as an essential component and containing little or no organic solvent Provided is an aqueous dry laminate adhesive composition for synthetic leather. Furthermore, the manufacturing method of the synthetic leather using this adhesive composition and this synthetic leather are provided. In an adhesive composition comprising an aqueous urethane resin (A), a crosslinking agent (B), a thickener (C), and an aqueous pigment (D), (A) is a nonionic type as a hydrophilic group. Contains only hydrophilic groups as essential hydrophilic groups, The nonionic hydrophilic group-containing compound bonded in the molecule of (A) is contained in an amount of 1 to 30 parts by weight per 100 parts by weight of the urethane resin solid content, and the outflow start temperature of the urethane resin solid content is 8 The outflow start temperature after the urethane resin reacts with the crosslinking agent (B) and is cured is 120 ° C. or higher. |