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    • 36. 发明授权
    • Toughened epoxy adhesive composition
    • 增韧环氧胶粘剂组合物
    • US08404787B2
    • 2013-03-26
    • US11446037
    • 2006-06-02
    • Andreas LutzDaniel Schneider
    • Andreas LutzDaniel Schneider
    • C08F283/04C08F283/10
    • C08L63/00C08G18/10C08G18/3876C08G18/288C08G18/2865C08L2666/20C08L75/04
    • The invention is an epoxy resin based adhesive composition comprising an epoxy resin and a compound comprising an elastomeric prepolymer residue selected from the group of a polyurethane, a polyurea and a polyurea polyurethane having isocyanate end groups, the isocyanate end groups of said prepolymer residue being capped by a capping compound selected from the group consisting of a primary aliphatic, cycloaliphatic, heteroaromatic and araliphatic amine, a secondary aliphatic, cycloaliphatic, aromatic, heteroaromatic and araliphatic amine, a thiol and an alkyl amide, said capping compound being bound to the end of the polymer chain of the elastomeric prepolymer in a manner such that the end to which it is bonded no longer has a reactive group.In addition to the capping compound defined above above, a capping compound selected from the group consisting of a phenol and a polyphenol can be used for capping the isocyanate end groups of the prepolymer residue.
    • 本发明是一种环氧树脂基粘合剂组合物,其包含环氧树脂和包含选自聚氨酯,聚脲和具有异氰酸酯端基的聚脲聚氨酯的弹性体预聚物残余物的化合物,所述预聚物残基的异氰酸酯端基被封端 通过选自伯脂族,脂环族,杂芳族和芳脂族胺,仲脂族,脂环族,芳族,杂芳族和芳脂族胺,硫醇和烷基酰胺的封端化合物,所述封端化合物结合到 弹性体预聚物的聚合物链,使得其键合的末端不再具有反应性基团。 除了上述定义的封端化合物之外,可以使用选自苯酚和多酚的封端化合物来封端预聚物残基的异氰酸酯端基。