	US 12,278,032 B2
	Photosensitive resin composition, cured film, inductor and antenna
Tatsuo Ishikawa, Haibara-gun (JP); and Tatsuo Mikami, Odawara (JP)
Assigned to FUJIFILM Corporation, Tokyo (JP)
Filed by FUJIFILM Corporation, Tokyo (JP)
Filed on Sep. 28, 2021, as Appl. No. 17/487,269.
Application 17/487,269 is a continuation of application No. PCT/JP2020/011861, filed on Mar. 18, 2020.
Claims priority of application No. 2019-067590 (JP), filed on Mar. 29, 2019.
Prior Publication US 2022/0013264 A1, Jan. 13, 2022
Int. Cl. H01F 1/153 (2006.01); B82Y 25/00 (2011.01); B82Y 30/00 (2011.01); B82Y 40/00 (2011.01); C08F 2/50 (2006.01); C08K 3/11 (2018.01); C08L 101/00 (2006.01); G03F 7/004 (2006.01); H01F 1/28 (2006.01)

CPC H01F 1/15308 (2013.01) [C08F 2/50 (2013.01); C08K 3/11 (2018.01); C08L 101/00 (2013.01); G03F 7/004 (2013.01); H01F 1/15375 (2013.01); H01F 1/28 (2013.01); B82Y 25/00 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01)]

17 Claims

1. A photosensitive resin composition comprising:

a resin that has an ethylenic unsaturated group and a graft chain, or a compound having an ethylenic unsaturated group and a resin having a graft chain;

an iron-containing particle of which an iron atom content is 10% by mass or more; and

a polymerization initiator,

wherein a case where the photosensitive resin composition is cured to form a cured film, the cured film has a magnetic permeability real part μ′ of 1.5 or more at a frequency of 5 GHz and a magnetic loss tan δ of 0.05 or less at a frequency of 5 GHz.