METHOD FOR PREPARING HIGH TEMPERATURE-RESISTANT POLYURETHANE HOT MELT ADHESIVE

• Main Authors: CHEN, Tianan, XIE, Haihua, JIANG, Guilin, WANG, Jianbin
• Format: Patent
• Language: English; French; German
• Published: 19.08.2020
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS AS ADHESIVES

The present invention relates to a method of preparing polyurethane hot melt adhesive with high temperature resistance. The prepared polyurethane hot melt adhesive is single component moisture cure polyurethane adhesive. The hot melt adhesive made according to the new method has a variety of improved physical and mechanical properties, including improved high temperature resistance, cold and heat shock resistance, drop resistance toughness, high adhesive strength, salt spray resistance and moisture and heat aging resistance, which is of great practical significance to enhance the core competitiveness of domestic polyurethane hot melt adhesive.