申请人:Kuraray Co., Ltd.
公开号:EP1217011A1
公开(公告)日:2002-06-26
According to the present invention, provided is an industrially advantageous process for producing an epoxidized polymer, with safety and efficiency, wherein the epoxidation of a polymer having an olefinic carbon-carbon double bond is effected under the presence of substantially no alkali metal ion by adding an aqueous solution containing (i) ammonium tungstate and/or tungstophosphoric acid and (ii) phosphoric acid, in which the amount of (ii) phosphoric acid is not less than 0.25 moles relative to 1 gram atom of tungsten atom contained in the (i) ammonium tungstate and/or tungstophosphoric acid, and an aqueous hydrogen peroxide, separately to a solution of said polymer and a quaternary ammonium salt in an organic solvent immiscible with water.
根据本发明,提供了一种安全高效地生产环氧化聚合物的工业上有利的工艺,其中具有烯烃碳-碳双键的聚合物的环氧化是在基本上没有碱金属离子存在的情况下进行的,方法是将含有(i)钨酸铵和/或钨磷酸和(ii)磷酸的水溶液,其中(ii)磷酸的量相对于(i)钨酸铵和/或钨磷酸中含有的1克钨原子不小于0.25摩尔(相对于(i)钨酸铵和/或钨磷酸铵中所含的1克钨原子)和过氧化氢水溶液,分别加入上述聚合物和季铵盐在与水不相溶的有机溶剂中的溶液中。