US 12,437,894 B2
Radiation transmission preventing film, and radiation transmission preventing filter and imaging device each utilizing said radiation transmission preventing film
Shusaku Goto, Ibaraki (JP)
Assigned to NITTO DENKO CORPORATION, Ibaraki (JP)
Appl. No. 17/633,659
Filed by NITTO DENKO CORPORATION, Ibaraki (JP)
PCT Filed Jun. 18, 2020, PCT No. PCT/JP2020/023880
§ 371(c)(1), (2) Date Feb. 8, 2022,
PCT Pub. No. WO2021/033401, PCT Pub. Date Feb. 25, 2021.
Claims priority of application No. 2019-151096 (JP), filed on Aug. 21, 2019.
Prior Publication US 2022/0319726 A1, Oct. 6, 2022
Int. Cl. G21F 1/10 (2006.01); C08K 3/38 (2006.01); C09D 5/32 (2006.01); C09D 101/02 (2006.01); C09D 129/04 (2006.01); C09D 133/08 (2006.01); G21F 1/12 (2006.01); G21F 3/00 (2006.01)
CPC G21F 1/10 (2013.01) [C08K 3/38 (2013.01); C09D 5/32 (2013.01); C09D 101/02 (2013.01); C09D 129/04 (2013.01); C09D 133/08 (2013.01); G21F 1/12 (2013.01); G21F 3/00 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A neutron-radiation-suppressing film that transmits visible light, comprising a polyvinyl alcohol-based resin film containing boric acid, wherein the product of a boric acid content (wt %) in the polyvinyl alcohol-based resin film and a thickness (μm) of the polyvinyl alcohol-based resin film is 500 or more, and the neutron-radiation-suppressing film has a total visible light transmittance of 80% or more.