Gas separation membrane, gas separation module, gas separation device, and gas separation method
申请人:FUJIFILM Corporation
公开号:US10040035B2
公开(公告)日:2018-08-07
Provided are a gas separation membrane which includes a gas separation layer formed to include a polyimide compound and in which the polyimide compound includes a repeating unit represented by the following Formula (I), a gas separation module, a gas separation device, and a gas separation method using the same.
In Formula (I), R represents a group having a specific structure. R3 represents a specific substituent group. A1 to A3 represent a hydrogen atom or a specific substituent group, but all of A1 to A3 do not represent a hydrogen atom at the same time.
In this case, at least one of R3, A1, A2, and A3 represents a specific polar group.
Gas separation composite membrane, gas separation module, gas separation device, gas separation method, and method of producing gas separation composite membrane
申请人:FUJIFILM Corporation
公开号:US10226743B2
公开(公告)日:2019-03-12
Provided are a gas separation composite membrane including a gas separation layer which is formed to include a polyimide compound on the upper side of a gas permeating support, in which the solubility of the polyimide compound in dimethylacetamide at 20° C. is 20 mg/100 g or less, and the thickness of the gas separation layer is 0.1 μm or greater and less than 5.0 μm, a method of producing the same, a gas separation module using the gas separation composite membrane, a gas separation device, and a gas separation method.
本发明提供了一种气体分离复合膜,包括气体分离层,该气体分离层是在气体渗透支架的上侧形成的,其中包括聚酰亚胺化合物,聚酰亚胺化合物在 20° C 时在二甲基乙酰胺中的溶解度为 20 mg/100 g 或以下,气体分离层的厚度为 0.1 μm 或以上且小于 5.0 μm;本发明还提供了一种生产方法、一种使用该气体分离复合膜的气体分离组件、一种气体分离装置和一种气体分离方法。
Gas separation membrane, gas separation module, gas separation device, gas separation method, and polyimide compound
申请人:FUJIFILM Corporation
公开号:US10537859B2
公开(公告)日:2020-01-21
A gas separation membrane includes a gas separation layer containing a polyimide compound having a repeating unit represented by Formula (I),
in Formula (I), RI represents a hydrogen atom, an alkyl group, or a halogen atom, Xa represents a sulfamoyl group, an alkoxysulfonyl group, a carboxy group, a hydroxy group, an acyloxy group, or a halogen atom, and R represents a mother nucleus having a specific structure.
Method for producing gas separation composite membrane, liquid composition, gas separation composite membrane, gas separation module, gas separation apparatus, and gas separation method
申请人:FUJIFILM Corporation
公开号:US10654005B2
公开(公告)日:2020-05-19
The method for producing a gas separation composite membrane includes applying a mixed liquid containing compounds (a) and (b) below onto a porous support to form a coating film and curing the coating film to form a crosslinked polysiloxane compound layer:
(a) a particular crosslinkable polysiloxane compound having a structural unit (a1), a structural unit (a2), and a structural unit (a3) or (a4), and
(b) a particular crosslinkable polysiloxane compound having a structural unit (b1), a structural unit (b2), and a structural unit (b3) or (b4),
where R1a to R1f and R2a to R2f represent a particular group and * represents a particular linking site.