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    • 1. 发明授权
    • Rubber derivatives and method for their preparation
    • 橡胶衍生物及其制备方法
    • US06743866B2
    • 2004-06-01
    • US10004861
    • 2001-12-07
    • Mas Rosemal Hakim b Mas Haris
    • Mas Rosemal Hakim b Mas Haris
    • C08F804
    • C08C19/00C02F1/56C02F2209/06C08C19/40
    • A rubber derivative comprises a coordination compound of a natural or syntheticrubber containing double bonds and/or epoxy or other groups containing an electronegative atom or atoms and preferably having a weight average molecular weight of from 20,000 to 90,000, more preferably, 20,000 to 85,000, especially about 80,000, with an alkali or alkaline earth metal. The derivatives may be made by dissolving a rubber containing double bonds and/or epoxy or other groups containing an electronegative atom or atoms and having at least a component with a weight average molecular weight in the range of from 20,000 to 90,000, more preferably, 20,000 to 85,000, especially about 80,000, in a polar solvent, adding to the solution an at least equivalent amount of powdered alkali metal and/or alkaline earth metal hydroxide and/or carbonate, optionally together with a desiccant, if the solvent is not water-free, stirring the mixture until a coordination compound between the rubber and the metal atoms had formed and separating the coordination compound from the solvent.
    • 橡胶衍生物包含含有双键和/或环氧基的天然或合成橡胶的配位化合物或含有负电原子或原子的其它基团,优选重均分子量为20,000至90,000,更优选为20,000至85,000,特别是 约80,000,用碱金属或碱土金属。 衍生物可以通过将含有双键和/或环氧基的橡胶或其它含有电负性原子或原子的基团溶解并且具有至少一种重均分子量在20,000至90,000,更优选20,000 至85,000,特别是约80,000,在极性溶剂中,如果溶剂不是水溶性的,则向溶液中加入至少等量的粉末状碱金属和/或碱土金属氢氧化物和/或碳酸盐,任选地与干燥剂一起, 自由地搅拌混合物,直到形成了橡胶和金属原子之间的配位化合物,并将配位化合物与溶剂分离。