发明名称 |
WASHING APPARATUS, AND PROCESS FOR PRODUCING POROUS MEMBRANE |
摘要 |
The present invention relates to a method of producing a porous membrane, including a coagulation step of coagulating a membrane-forming raw material solution to form a porous membrane; a washing step of washing the porous membrane to remove material remaining in the porous membrane; a removal step of removing a hydrophilic polymer remaining in the porous membrane, in which the washing step includes transporting a porous membrane so as to contact with a falling washing solution. According to the present invention, it is possible to provide a method of producing a porous membrane capable of efficiently removing a solvent from a porous membrane within a short period of time at a low cost without large facilities; and a washing apparatus used for the production process. |
申请公布号 |
US2013292867(A1) |
申请公布日期 |
2013.11.07 |
申请号 |
US201113881232 |
申请日期 |
2011.10.28 |
申请人 |
HIRAOKA KOTARO;SUMI TOSHINORI;FUJIKI HIROYUKI;MITSUBISHI RAYON CO., LTD. |
发明人 |
HIRAOKA KOTARO;SUMI TOSHINORI;FUJIKI HIROYUKI |
分类号 |
B01D67/00 |
主分类号 |
B01D67/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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