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    • 5. 发明公开
    • METHOD FOR PRODUCING POLYMER
    • 生产聚合物的方法
    • EP2842973A1
    • 2015-03-04
    • EP13782285.4
    • 2013-04-24
    • Asahi Kasei Chemicals Corporation
    • SHIMIZU, DaisukeSHIBUYA, Kenta
    • C08F6/08C08C2/04C08F8/04
    • C08F293/00C08C2/04C08C19/02C08F6/02C08F8/04C08F2800/20C08F297/04
    • It is an object of the present invention to provide a method for producing a polymer, which can efficiently remove metal residues of at least lithium and/or titanium from a polymer solution comprising the at least lithium and/or titanium to thereby obtain a refined polymer solution having little metal residue. The method for producing a polymer comprises step 1 of preparing a polymer solution comprising at least lithium and/or titanium; step 2 of adding and mixing water in a volume 0.1 to 20 times the volume of the polymer solution and an acid compound selected from compounds represented by the following formula (1) to the polymer solution to thereby obtain a mixed liquid; and step 3 of removing a water phase from the mixed liquid to thereby obtain a refined polymer solution:

      wherein R 1 , R 2 and R 3 are each independently a substituent constituted of an element selected from C, H, O and N, and wherein the acid compound comprises 4 or more oxygen atoms in the molecule.
    • 本发明的一个目的是提供一种生产聚合物的方法,该方法可以从包含至少锂和/或钛的聚合物溶液中有效地除去至少锂和/或钛的金属残余物,从而获得精制聚合物 有少量金属残留物的溶液。 制备聚合物的方法包括步骤1:制备至少包含锂和/或钛的聚合物溶液; 向聚合物溶液中加入并混合聚合物溶液体积的0.1至20倍体积的水和选自下式(1)所示化合物的酸化合物的步骤2以获得混合液; 和从混合液体中除去水相以获得精制聚合物溶液的步骤3:其中R 1,R 2和R 3各自独立地为选自C,H,O和N的元素构成的取代基,并且其中酸化合物 在分子中包含4个或更多个氧原子。