申请人:Asahi Kasei E-materials Corporation
公开号:EP2264085A1
公开(公告)日:2010-12-22
Problems to be Solved
There is provided a dispersion composition of fluorine-containing ion exchange resin, which has an extremely low solution viscosity even in a case in which the concentration of a fluorine-containing ion exchange resin is increased by a concentration operation in a liquid composition in which the fluorine-containing ion exchange resin is dispersed.
Solution
A dispersion composition of fluorine-containing ion exchange resin, which comprises a fluorine-containing ion exchange resin having a repeating unit represented by the following formulae (1) and (2) and having an equivalent weight of 400 to 1000 g/eq, and a solvent containing water,
-(CFZCFZ)- (1)
wherein Z represents H, Cl, F, or a perfluoroalkyl group containing 1 to 3 carbon atoms; m represents an integer of 0 to 12; and n represents an integer of 0 to 2, and wherein
an abundance ratio of a resin having a particle size of 10 µm or more in the fluorine-containing ion exchange resin is 0.1% to 80% by volume.
有待解决的问题
本发明提供了一种含氟离子交换树脂的分散组合物,即使在含氟离子交换树脂分散于其中的液体组合物中通过浓缩操作提高含氟离子交换树脂浓度的情况下,该组合物的溶液粘度也极低。
解决方案
一种含氟离子交换树脂的分散组合物,它由具有下式(1)和(2)所代表的重复单元且当量重量为 400 至 1000 克/当量的含氟离子交换树脂和含水的溶剂组成、
-(CFZCFZ)- (1)
其中 Z 代表 H、Cl、F 或含有 1 至 3 个碳原子的全氟烷基;m 代表 0 至 12 的整数;n 代表 0 至 2 的整数,以及
含氟离子交换树脂中粒径大于或等于 10 微米的树脂的丰度比为 0.1%至 80%(体积比)。