A safe and stable production method of a hydrogenated polymer having high transparency, which is a production method of a hydrogenated polymer by hydrogenating aromatic rings of an aromatic vinyl compound- (meth) acrylate copolymer, in which (1) a solvent solution of the copolymer is added to a reactor, which has a solvent and a supported palladium catalyst charged therein, under a hydrogen atmosphere at a rate of from 0.01 to 15 g/hour in terms of the copolymer per unit mass (g) of the supported palladium catalyst, thereby performing hydrogenation reaction, and then such an operation is performed repeatedly that (2) a hydrogenated polymer is obtained from 30 to 90% by mass of the resulting reaction mixed solution, and a fresh solvent solution of the copolymer is added to the reactor, in which the residual reaction mixed solution is left, or to which the residual reaction mixed solution is returned, at a rate of from 0.01 to 15 g/hour in terms of the copolymer per unit mass (g) of the supported palladium catalyst, thereby performing hydrogenation reaction.
一种安全稳定地生产具有高透明度的氢化聚合物的方法,它是通过氢化芳香族
乙烯基化合物-(甲基)
丙烯酸酯共聚物的芳香环来生产氢化聚合物的方法,其中(1)在
氢气气氛下,将共聚物的溶剂溶液加入反应器中,该反应器中装有溶剂和支撑
钯催化剂,以每单位质量(克)共聚物0.01至15克/小时(以每单位质量(克)的共聚物计),从而进行氢化反应,然后重复进行这样的操作,即(2)得到氢化聚合物,其质量占所得到的反应混合溶液的30%至90%,然后向反应器中加入新的共聚物溶剂溶液,在反应器中留下残余的反应混合溶液,或将残余的反应混合溶液返回到反应器中,以0.01至15克/小时(以每单位质量(克)支撑
钯催化剂的共聚物计),从而进行氢化反应。