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2. 发明授权

US4401499A Crosslinked resin of epoxy compound and isocyanate and process for producing same 失效
标题翻译：环氧化合物和异氰酸酯的交联树脂及其制备方法
公开(公告)号：US4401499A
公开(公告)日：1983-08-30
申请号：US326306
申请日：1981-12-01
申请人： Shoroku Kaneko , Sigenori Yamaoka , Masuo Mizuno , Yukihiro Okabe
发明人： Shoroku Kaneko , Sigenori Yamaoka , Masuo Mizuno , Yukihiro Okabe
IPC分类号： C08G18/58 , C08G59/14 , C08G59/40 , B32B31/00
CPC分类号： C08G18/58 , C08G59/1477 , C08G59/4028
摘要： A crosslinked resin excellent in heat resistance, toughness, moisture resistance and adhesiveness can be obtained by the use of an epoxy compound having both alcoholic hydroxyl groups and epoxy groups in its molecule and an isocyanate compound having isocyanate groups in its molecule by first reacting the alcoholic hydroxyl groups of said epoxy compound and the isocyanate groups of said isocyanate compound to produce an epoxy prepolymer having urethane linkages stable at room temperature, followed by dissociating the urethane linkages of the prepolymer to regenerate the isocyanate groups and reacting said isocyanate groups with the epoxy groups of said epoxy compound. By carrying out the above-mentioned reaction between the isocyante groups and the epoxy groups in the presence of at least one member selected from the group consisting of amine compounds, carboxylic acid anhydrides, phenol novolac compounds and polyvinyl-phenol compounds and/or a bisimide compound, a crosslinked resin having higher heat resistance can be produced. Said prepolymer is excellent in storage stability and suitable for use in the production of laminates.
摘要翻译：通过在其分子中使用具有醇羟基和环氧基的环氧化合物和分子中具有异氰酸酯基的异氰酸酯化合物，可以通过首先使酒精反应来获得耐热性，韧性，耐湿性和粘合性优异的交联树脂所述环氧化合物的羟基和所述异氰酸酯化合物的异氰酸酯基，以产生具有在室温下具有氨基甲酸酯键稳定的环氧预聚物，随后将预聚物的氨基甲酸酯键解离以再生异氰酸酯基团并使所述异氰酸酯基与环氧基反应的所述环氧化合物。通过在选自胺化合物，羧酸酐，苯酚酚醛清漆化合物和聚乙烯基苯酚化合物和/或双酰亚胺中的至少一种的存在下进行异氰基和环氧基之间的上述反应化合物，可以制备具有较高耐热性的交联树脂。所述预聚物的储存稳定性优异，适用于层压制品的生产。

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