US 12,091,553 B2
Core-shell dye, near-infrared absorbing composition including the same, and near-infrared absorbing film
Insub Shin, Suwon-si (KR); Gyuseok Han, Suwon-si (KR); Euisoo Jeong, Suwon-si (KR); Chaehyuk Ko, Suwon-si (KR); and Baek Soung Park, Suwon-si (KR)
Assigned to SAMSUNG SDI CO., LTD., Yongin-si (KR)
Filed by SAMSUNG SDI CO., LTD., Yongin-si (KR)
Filed on Dec. 19, 2022, as Appl. No. 18/083,652.
Claims priority of application No. 10-2022-0024688 (KR), filed on Feb. 24, 2022.
Prior Publication US 2023/0348724 A1, Nov. 2, 2023
Int. Cl. C09B 23/16 (2006.01); C08J 5/18 (2006.01); C08K 9/04 (2006.01); C09B 67/08 (2006.01); C09B 67/20 (2006.01); G02B 1/04 (2006.01); G02B 5/20 (2006.01); H04N 25/20 (2023.01)
CPC C09B 67/0011 (2013.01) [C08J 5/18 (2013.01); C08K 9/04 (2013.01); C09B 23/16 (2013.01); C09B 67/0063 (2013.01); G02B 1/04 (2013.01); G02B 5/208 (2013.01); C08J 2333/10 (2013.01); H04N 25/20 (2023.01)] 29 Claims
OG exemplary drawing
 
1. A core-shell dye, comprising
a core represented by Chemical Formula 1; and
a shell surrounding the core, the shell being represented by Chemical Formula 2;

OG Complex Work Unit Chemistry
wherein, in Chemical Formula 1;
Y1 and Y3 are each independently ═CH—, or a nitrogen atom;
Y2 and Y4 are each independently —CH2—, a sulfur atom, —NH—, or an oxygen atom; and
R1 to R4 are each independently a substituted or unsubstituted C6 to C30 aryl group;

OG Complex Work Unit Chemistry
wherein, in Chemical Formula 2,
A1 and A2 are each independently a divalent substituted or unsubstituted C6 to C30 aromatic ring group;
L1 and L2 are each independently a single bond or a substituted or unsubstituted C1 to C30 alkylene group; and
a is an integer of 2 to 10.