US 12,479,976 B2
Cured product, optical element, optical apparatus, and imaging apparatus
Kei Tagami, Kanagawa (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Jan. 6, 2023, as Appl. No. 18/151,247.
Claims priority of application No. 2022-002279 (JP), filed on Jan. 11, 2022.
Prior Publication US 2023/0220183 A1, Jul. 13, 2023
Int. Cl. G02B 1/04 (2006.01); C07C 219/32 (2006.01); C08F 220/20 (2006.01); C08F 222/10 (2006.01); C08K 5/18 (2006.01)
CPC C08K 5/18 (2013.01) [C08F 220/20 (2013.01); C08F 222/102 (2020.02); G02B 1/041 (2013.01)] 13 Claims
 
1. A cured product of a resin composition, the resin composition comprising: a compound represented by the following formula (1)

OG Complex Work Unit Chemistry
wherein R1 to R5 are each independently selected from the group consisting of a polymerizable functional group, a substituted or unsubstituted alkyl group having 1 to 8 carbon atoms, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms and having a polymerizable functional group at a terminal thereof, and a substituted or unsubstituted alkyl group having 2 to 6 carbon atoms and having a polymerizable functional group at a terminal thereof, in which one CH2 in a main chain is replaced by an oxygen atom or a sulfur atom,
R5 to R9 are each independently selected from a hydrogen atom and a trifluoromethyl group, and
at least one of R1 to R4 is a polymerizable functional group or a substituent having a polymerizable functional group, and at least one of R5 to R9 is a trifluoromethyl group.