COLD SEAL ADHESIVES BASED ON AQUEOUS POLYURETHANE DISPERSIONS

• Main Authors: WAGNER SARA, STEPHENSON BRIAN W, EISFELD HEIKE, GIMENO GORMAZ NELIDA, PEREZ BRIONES AURORA, ZHAO LIGANG
• Format: Patent
• Language: Chinese; English
• Published: 11.05.2018
• 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 aqueous polyurethane dispersions prepared with no catalyst or very low loading of organic catalyst that can be used as cold sealable adhesives, are surfactant and solvent free and have low VOC emissions, are environmentally friendly, and provide for homogeneous and aging-resistant adhesives that can be used for cosmetic, pharmaceutical and food packaging applications. Also encompassed are processes for their production, compositions containing them and their use as adhesives. 本发明涉及在没有催化剂或极低负载量有机催化剂的情况下制备的含水聚氨酯分散体，其可以用作可冷封粘合剂，不含表面活性剂和溶剂，具有低VOC排放，对环境友好，并且提供可用于化妆品、药物和食品包装应用的均质且耐老化的粘合剂。本发明还包括其制备方法、含有其的组合物和其用作粘合剂的用途。