	US 11,987,682 B2
	Photocatalyst transfer film and production method thereof
Masahiro Yuyama, Kamisu (JP); Manabu Furudate, Kamisu (JP); and Tomohiro Inoue, Kamisu (JP)
Assigned to SHIN-ETSU CHEMICAL CO., LTD., Tokyo (JP)
Appl. No. 17/043,517
Filed by SHIN-ETSU CHEMICAL CO., LTD., Tokyo (JP)
PCT Filed Mar. 26, 2019, PCT No. PCT/JP2019/012717 § 371(c)(1), (2) Date Sep. 29, 2020, PCT Pub. No. WO2019/198483, PCT Pub. Date Oct. 17, 2019.
Claims priority of application No. JP2018-076979 (JP), filed on Apr. 12, 2018.
Prior Publication US 2021/0016249 A1, Jan. 21, 2021
Int. Cl. C08J 7/043 (2020.01); B01J 21/06 (2006.01); B01J 31/02 (2006.01); B01J 31/06 (2006.01); B01J 31/38 (2006.01); B01J 35/39 (2024.01); B01J 37/02 (2006.01); C08J 7/056 (2020.01)

CPC C08J 7/043 (2020.01) [B01J 21/063 (2013.01); B01J 31/0275 (2013.01); B01J 31/06 (2013.01); B01J 31/38 (2013.01); B01J 35/39 (2024.01); B01J 37/0219 (2013.01); B01J 37/0236 (2013.01); C08J 7/056 (2020.01); B01J 2231/005 (2013.01); B01J 2531/008 (2013.01)]

12 Claims

1. A photocatalyst transfer film comprising:

a biaxially oriented polypropylene film having an arithmetic average roughness Ra of 0.01 to 1 μm when measured by a 3D laser microscope; and

a photocatalyst layer that is in direct contact with the biaxially oriented polypropylene film and contains a titanium oxide particle-containing photocatalyst, a silicon compound which is a hydrolysis condensate of a tetrafunctional silicon compound and is obtained under the presence of an organic ammonium salt, and a surfactant.