发明名称 |
METHOD FOR PURIFYING LIQUID, METHOD FOR PRODUCING CHEMICAL SOLUTION OR CLEANING SOLUTION, FILTER MEDIUM, AND FILTER DEVICE |
摘要 |
The present invention addresses the problem of providing: a method for purifying a liquid using a porous polyimide and/or polyamideimide membrane having excellent impurities (e.g., metals) removal performance which is preferably compatible with a flow rate, and also having an excellent stress, an excellent breaking elongation and the like; a method for producing a chemical solution or a cleaning solution employing the purification method; a filter medium comprising the porous membrane; and a filter device equipped with the porous membrane. A method for purifying a liquid, comprising causing a portion or the whole of the liquid to pass through a porous polyimide and/or polyamideimide membrane having communicated pores from one side of the membrane to the other side of the membrane by the action of a differential pressure between the two sides. |
申请公布号 |
WO2016136673(A1) |
申请公布日期 |
2016.09.01 |
申请号 |
WO2016JP55079 |
申请日期 |
2016.02.22 |
申请人 |
TOKYO OHKA KOGYO CO., LTD. |
发明人 |
TAKASHIMA, Hayato;NAKAJIMA, Takao;SUGAWARA, Tsukasa;KOSHIYAMA, Jun |
分类号 |
B01D71/64;B01D69/00 |
主分类号 |
B01D71/64 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|