To provide a polyamide hot-melt adhesive that has excellent viscosity stability and high skinning resistance and provide a hot-melt adhesive for book binding that can manifest excellent performance, for example, printing ink resistance, heat resistance, durability, page-opening properties and waste paper- recycling properties, in no need of remodeling or renewal of the conventional book-making installation.
In a hot-melt type adhesive composition that contains the polyamide resin derived from a dimmer acid, at least a part of the constitution units from the dimmer acid is hydrogenated among the polyamide resin and pentaerythritol tetrakis (β-lauryl thiopropionate) is formulated as an antioxidant. The objective hot-melt adhesive for book binding includes the above-hot-melt type adhesive composition.
NAKAMURA KAZUAKI
TERADA NOBUHITO
MATSUBA YORISHIGE
HARIMA CHEMICALS INC