Method of producing composite, and composite

Patent metadata

Field	Value
Publication number	US-10173180-B2
Application number	US-201615145889-A
Country	US
Kind code	B2
Filing date	May 4, 2016
Priority date	Dec 27, 2013
Publication date	Jan 8, 2019
Grant date	Jan 8, 2019

Abstract

There is provided a method of producing a composite which is capable of suitably forming a silicone resin layer for preventing the facilitated transport film from entering the porous support in an acidic gas separation film formed by forming a facilitated transport film on a porous support, and the composite. The problem is solved by the method of producing a composite including hydrophilizing the surface of the porous support using a roll-to-roll system; and coating the hydrophilized surface of the porous support with a silicone coating solution that becomes the silicone resin layer using the roll-to-roll system.

First claim

What is claimed is:

1. A composite comprising:
a porous support of which at least one surface is hydrophilized by having a hydrophilic polymer layer on the at least one surface;
a silicone resin layer which is formed on one surface that is the hydrophilic surface of the porous support; and
a facilitated transport film formed on the silicone resin layer and contains a carrier at least reacting with acidic gas and a hydrophilic compound for carrying the carrier,
wherein the porous support is covered by the hydrophilic polymer layer at a coverage in a range of 20% to 90%.

2. The composite according to claim 1 , wherein the porous support has a maximum pore size of 5 μm or less and an average pore size in a range of 0.001 μm to 1 μm.

3. The composite according to claim 1 , wherein the porous support has a porous film and an auxiliary support film, and the hydrophilic polymer layer is provided on a surface of the porous film, and
wherein a film thickness of the porous film is in a range of 5 μm to 100 μm and a film thickness of the auxiliary support film is in a range of 50 μm to 300 μm.

Assignees

• Fujifilm Corp

Inventors

• Hiraki Daisuke
• Aburaya Yoshihiro
• Sawada Makoto
• Yoneyama Satoshi

Classifications

• B01D71/70 Primary

  Polymers having silicon in the main chain, with or without sulfur, nitrogen, oxygen or carbon only · CPC title

• B01D69/12

  Composite membranes; Ultra-thin membranes · CPC title

• B05D3/067

  Curing or cross-linking the coating · CPC title

• B05D2201/04

  Laminate · CPC title

• B05D3/0413

  Heating with air · CPC title