The present invention discloses a production process for high-temperature resistant matte hot melt adhesive, comprising the following steps: S1. First, react isocyanates and polyols to generate low molecular weight prepolymers; Under the action of chain extenders and catalysts, polyurethane precursors are generated, and antioxidants are added to optimize performance. Through twin-screw extrusion and underwater granulation, polyurethane hot melt adhesive particles are obtained; S2、 The polyurethane hot melt adhesive particles, polyolefin polymer, and matte agent obtained in S1 are introduced into a twin-screw extruder for mixing to obtain a molten mixed colloid, which is then cast into shape to obtain a high-temperature resistant matte hot melt adhesive. The high-temperature resistant matte hot melt adhesive produced by the present invention still has a matte effect after hot pressing with the substrate, and can be applied to the surface of special shoe materials, achieving the aesthetic effect of matte non reflection. At the same time, it has good elasticity, strength, good adhesion strength, high and low temperature stability, and excellent environmental resistance.
Country Code: CN
Application Number: CN202311747238.6
