WATERBORNE DISPERSION OF POLYURETHANE RESIN AND WATERBORNE ADHESIVE AGENT

摘要

The invention wet lamination, dry lamination is possible, dry (water removal) and then, for example, facilitates the reactivation at a low temperature of 50~70 ℃ degree, and applying workability upon coating, adhesive strength, heat resistance, excellent adhesion It provides an aqueous polyurethane resin dispersion. Further, polyurethane resins having a permeability and good coating properties with respect to the porous substrate as well as a smooth surface substrate, such as worked on the heels of the contact adhesive is excellent, plastics, metal, fibers, paper, and buff processed leather of the aqueous dispersion and provides a water-based adhesive and the application of water formed by using the aqueous dispersion. Aqueous polyurethane resin dispersion is a sulfonate group and / or carboxylate group contained, and the average particle diameter of 0.05~0.30 ㎛ of the polyurethane resin, the surface tension is below 40 mN / m of the aqueous dispersion. ; Polyurethane resin, aqueous dispersion, the adhesive, adhesive strength, heat resistance, coating properties, permeability