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51.
公开(公告)号:US20060069225A1
公开(公告)日:2006-03-30
申请号:US11219396
申请日:2005-09-02
IPC分类号: C08G18/00
CPC分类号: C09J175/12 , C08G18/10 , C08G18/8093 , C09J175/04 , C08G18/3271
摘要: The present invention relates to reactive compositions containing A) one or more blocked polyurethane prepolymers which have a content of blocked isocyanate groups (calculated as NCO) of 0.1 to 20 wt. % and are prepared from i) at least one aromatic, aliphatic, araliphatic and/or cycloaliphatic diisocyanate having a content of free NCO groups of 5 to 60 wt. %, ii) a polyol component containing at least one polyester polyol, and/or at least one polyether polyol and/or at least one polycarbonate polyol, iii) CH-acidic cyclic ketones corresponding to formula (I) as blocking agents wherein X represents an electron-attracting group, R1 and R2 independently of one another represent the radicals H, C1-C20 (cyclo)alkyl, C6-C24 aryl, C1-C20 (cyclo)alkyl ester or amide, C6-C24 aryl ester or amide, mixed aliphatic/aromatic radicals with 1 to 24 carbon atoms that can also be part of a 4- to 8-membered ring, n is an integer from 0 to 5, and B) one or more OH-functional compounds in which the OH component undergoes activation by a deposition amine component. The present invention also relates to a composite system containing two adherends bonded together with the reactive composition according to the invention.
摘要翻译: 本发明涉及含有A)一种或多种封端聚氨酯预聚物的反应性组合物,其中封端异氰酸酯基团(以NCO计算)为0.1-20wt。 %,并且由i)至少一种芳族,脂族,芳脂族和/或脂环族二异氰酸酯制备,其中游离NCO基团含量为5-60wt。 %,ii)含有至少一种聚酯多元醇的多元醇组分和/或至少一种聚醚多元醇和/或至少一种聚碳酸酯聚