Method of producing composite

Patent metadata

Field	Value
Publication number	US-2016339394-A1
Application number	US-201615225175-A
Country	US
Kind code	A1
Filing date	Aug 1, 2016
Priority date	Feb 4, 2014
Publication date	Nov 24, 2016
Grant date	—

Abstract

Provided is a method of producing a composite, which is capable of preventing a silicone coating solution, which becomes a silicone resin layer that prevents an acidic gas separation layer from entering a porous support, from entering the porous support, preventing a porous film and an auxiliary support film from being peeled off, and suitably forming a dense silicone resin layer on the surface of the porous support. The method thereof includes a coating process of coating the surface of the porous film side of the porous support with the silicone coating solution which becomes a silicone resin layer according to a roll-to-roll system. In the coating process, the conveying speed of the porous support is in a range of 0.5 m/min to 200 m/min, the viscosity of the silicone coating solution is in a range of 100 cP to 1000000 cP, and the peel force between the porous film and the auxiliary support film is 10 mN/min or greater.

First claim

What is claimed is:

1 . A method of producing a composite formed by forming a silicone resin layer on a surface of a porous support and having a surface on which an acidic gas separation layer is formed in an acidic gas separation film having the acidic gas separation layer, the method comprising:
coating a surface of a porous film side of the porous support with a silicone coating solution which becomes the silicone resin layer according to a roll-to-roll system using, as the porous support, a support formed by laminating an auxiliary support film on the porous film, wherein, in the coating of the surface thereof, the conveying speed of the porous support is in a range of 0.5 m/min to 200 m/min, the viscosity of the silicone coating solution is in a range of 100 cP to 1000000 cP, and the peel force between the porous film and the auxiliary support film is 10 mN/mm or greater.

2 . The method of producing a composite according to claim 1 , further comprising coating the surface of the silicone resin layer with a coating composition which becomes the acidic gas separation layer using a roll-to-roll system.

3 . The method of producing a composite according to claim 1 , wherein the acidic gas separation layer is a facilitated transport film which contains a carrier at least reacting with acidic gas and a hydrophilic compound for carrying the carrier.

4 . The method of producing a composite according to claim 2 , wherein the acidic gas separation layer is a facilitated transport film which contains a carrier at least reacting with acidic gas and a hydrophilic compound for carrying the carrier.

5 . The method of producing a composite according to any one of claim 1 , wherein the porous film includes one or more materials selected from the group consisting of a fluorine-containing polymer, an olefin polymer, and a sulfone polymer.

6 . The method of producing a composite according to any one of claim 1 , wherein the porous film includes one or more materials selected from the group consisting of PTFE, polypropylene, polysulfone, and polyether sulfone.

7 . The method of producing a composite according to any one of claim 2 , wherein the porous film includes one or more materials selected from the group consisting of PTFE, polypropylene, polysulfone, and polyether sulfone.

8 . The method of producing a composite according to any one of claim 4 , wherein the porous film includes one or more materials selected from the group consisting of PTFE, polypropylene, polysulfone, and polyether sulfone.

9 . The method of producing a composite according to any one of claim 1 , wherein the auxiliary support film is non-woven fabric which includes one or more materials selected from the group consisting of polypropylene, modified polyamide, and a fluorine-containing resin.

10 . The method of producing a composite according to any one of claim 2 , wherein the auxiliary support film is non-woven fabric which includes one or more materials selected from the group consisting of polypropylene, modified polyamide, and a fluorine-containing resin.

11 . The method of producing a composite according to any one of claim 4 , wherein the auxiliary support film is non-woven fabric which includes one or more materials selected from the group consisting of polypropylene, modified polyamide, and a fluorine-containing resin.

12 . The method of producing a composite according to any one of claim 8 , wherein the auxiliary support film is non-woven fabric which includes one or more materials selected from the group consisting of polypropylene, modified polyamide, and a fluorine-containing resin.

13 . The method of producing a composite according to any one of claim 1 , further comprising curing the silicone coating solution to form the silicone resin layer within seven seconds after the surface of the porous film is coated with silicone coating solution.

14 . The method of producing a composite according to any one of claim 2 , further comprising curing the silicone coating solution to form the silicone resin layer within seven seconds after the surface of the porous film is coated with silicone coating solution.

15 . The method of producing a composite according to any one of claim 4 , further comprising curing the silicone coating solution to form the silicone resin layer within seven seconds after the surface of the porous film is coated with silicone coating solution.

16 . The method of producing a composite according to any one of claim 12 , further comprising curing the silicone coating solution to form the silicone resin layer within seven seconds after the surface of the porous film is coated with silicone coating solution.

Assignees

• Fujifilm Corp

Inventors

• Aburaya Yoshihiro

Classifications

• B01D71/56

  Polyamides, e.g. polyester-amides · CPC title

• B01D67/0083 Primary

  Thermal after-treatment · CPC title

• B01D67/0079

  Manufacture of membranes comprising organic and inorganic components · CPC title

• B32B2255/26

  Polymeric coating · CPC title

• B32B2255/10

  on synthetic resin layer or on natural or synthetic rubber layer · CPC title