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    • 2. 发明授权
    • Halogenated epoxy resins
    • 卤化环氧树脂
    • US4727119A
    • 1988-02-23
    • US907706
    • 1986-09-15
    • Jody R. BermanChun S. WangLouis L. WalkerAbel Mendoza
    • Jody R. BermanChun S. WangLouis L. WalkerAbel Mendoza
    • C08G59/14C07C37/62C07D303/24C08G59/06C08G59/30C08G59/32C08L63/00H05K1/03
    • C07D303/24C07C37/62C08G59/066C08G59/30C08G59/3218H05K1/0326
    • Halogenated aromatic epoxy resins are disclosed wherein the halogen atoms are in the meta position with respect to a glycidyl ether group attached to an aromatic ring.Advanced epoxy resins are disclosed which result from the reaction of a relatively low molecular weight epoxy resin and a polyhydric phenol wherein at least one of the reactants contains at least one halogen atom which is meta with respect to a glycidyl ether group or a hydroxyl group attached to an aromatic ring. These advanced epoxy resins, when cured with a suitable curing agent, possess an improvement as compared to an advanced epoxy resin containing halogen atoms which are ortho with respect to a glycidyl ether group in at least one of thermal stability, glass transition temperature, relationship of viscosity to molecular weight and resistance to forming hydrolyzed halides in the presence of a refluxing solution of an alkali metal hydroxide.
    • 公开了卤化芳族环氧树脂,其中卤素原子相对于连接到芳族环上的缩水甘油醚基团处于间位。 公开了先进的环氧树脂,其由相对低分子量的环氧树脂和多元酚的反应产生,其中至少一种反应物含有至少一个相对于缩水甘油醚基团或羟基的元素的卤素原子 到一个芳香环。 这些先进的环氧树脂在用适当的固化剂固化时具有改进,与在热稳定性,玻璃化转变温度,玻璃化转变温度的关系中,相对于缩水甘油基醚基相邻的卤素原子的先进环氧树脂相比, 在碱金属氢氧化物的回流溶液存在下,粘度对分子量和耐水解卤化物的抗性。