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    • 3. 发明授权
    • Polyisocyanate curing agent for laminate adhesive and process for production thereof
    • 用于层压粘合剂的多异氰酸酯固化剂及其生产方法
    • US06596819B2
    • 2003-07-22
    • US09915256
    • 2001-07-27
    • Yukihiro MorikawaIchiro HigashikuboKouji YoshidaToshiaki Sasahara
    • Yukihiro MorikawaIchiro HigashikuboKouji YoshidaToshiaki Sasahara
    • C08G1800
    • C08G18/718B32B7/12C08G18/022C08G18/225C08G18/289C08G18/3206C08G18/4216C08G18/4277C08G18/4825C08G18/7621C09J175/08
    • A polyisocyanate curing agent for laminate adhesive, comprising: (A) an isocyanate group-terminated prepolymer having isocyanurate group and urethane group, obtained by reacting an organic polyisocyanate containing at least (a1) an aromatic diisocyanate with an active hydrogen group-containing compound containing at least (a2) a diol compound having a number-average molecular weight of 100 to 2,000, and, as an optional component, (B) an isocyanate group-terminated prepolymer having urethane group, and, also as an optional component, (C) a silane coupling agent represented by the following general formula (1): OCN—(CH2)m—Si(OR)3  (1)  (wherein R is a methyl group or an ethyl group, and m is an integer of 1 to 5); and a process for producing the polyisocyanate curing agent. The polyisocyanate curing agent is usable in a laminate adhesive which can be aged in a short time without shortening the pot life, which has good adhesivity, and which can withstand a severe retort treatment.
    • 一种层叠粘合剂用聚异氰酸酯固化剂,其特征在于,含有:(A)具有异氰脲酸酯基和异氰酸酯基的异氰酸酯基封端的预聚物,其通过使至少含有(a1)芳香族二异氰酸酯的有机多异氰酸酯与含有活性氢基的化合物反应得到, 至少(a2)数均分子量为100〜2,000的二醇化合物,作为任意成分,(B)具有氨基甲酸酯基的异氰酸酯基封端的预聚物,作为任意成分,(C )由以下通式(1)表示的硅烷偶联剂:(其中R是甲基或乙基,m是1至5的整数); 以及多异氰酸酯固化剂的制造方法。 多异氰酸酯固化剂可用于能够在短时间内老化而不缩短适用期的粘合剂,并且能够承受严重的蒸煮处理的层压粘合剂中。