According to Patent CN115322730B (Date of Grant Publication: May 30, 2023), a preparation method for a PUR hot-melt edge-banding adhesive utilizes raw materials comprising, in parts by weight: 45–70 parts isocyanate, 5–20 parts polyether polyol, 5–10 parts polycarboxylate, 18–30 parts tackifying resin, 0.5–2.0 parts catalyst, 1.0–2.0 parts chain extender, 2.0–5.0 parts crosslinking agent, 0.5–1.5 parts antioxidant, 3–10 parts filler, and 1.0–3.0 parts mildew inhibitor; wherein the mildew inhibitor includes a nano-silver particle/titanium dioxide dispersion, a copper ammonia complex solution, and an oxalic acid solution.
Hot-melt edge-banding adhesives are widely utilized for edge-banding panel materials within the furniture and construction industries. They are suitable for a diverse range of edge-banding materials-including thin wood veneers, polyester, HPL, PVC, ABS, PP, MDF, particleboard, and melamine-and are applicable to various processing scenarios, such as hot-press molding and linear edge-banding operations performed on medium-to-high-speed automatic edge-banding machines.
