US 11,667,835 B2
Light-emitting composition
Kiran Kamtekar, Godmanchester (GB)
Assigned to Sumitomo Chemical Company Limited, Tokyo (JP)
Appl. No. 16/955,755
Filed by Sumitomo Chemical Company Limited, Tokyo (JP)
PCT Filed Dec. 20, 2018, PCT No. PCT/GB2018/053721
§ 371(c)(1), (2) Date Jun. 18, 2020,
PCT Pub. No. WO2019/122899, PCT Pub. Date Jun. 27, 2019.
Claims priority of application No. 1721674 (GB), filed on Dec. 21, 2017.
Prior Publication US 2021/0079295 A1, Mar. 18, 2021
Int. Cl. C09K 11/06 (2006.01); H01L 51/00 (2006.01); H01L 51/50 (2006.01)
CPC C09K 11/06 (2013.01) [H01L 51/0043 (2013.01); H01L 51/0067 (2013.01); C09K 2211/1466 (2013.01); H01L 51/5056 (2013.01); H01L 51/5072 (2013.01); H01L 51/5092 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A composition comprising a light-emitting material having a photoluminescent spectrum with a peak wavelength of more than 600 nm and non-polymeric material of formula (I):

OG Complex Work Unit Chemistry
wherein:
Ar1, Ar2, Ar3 and Ar4 are each independently a C6-20 aryl group which is unsubstituted or substituted with one or more substituents,
Ar5 independently in each occurrence is

OG Complex Work Unit Chemistry
wherein R1 in each occurrence is independently a substituent; R2 in each occurrence is independently a substituent wherein the R2 groups may be linked to form a ring; p is 0, 1, or 2; q is 0, 1, 2, 3, or 4; and r is 0, 1, 2, or 3;
and m is 1, 2 or 3.