US 11,999,818 B2
High molecular weight triarylamine compound comprising terphenyl structure in molecular main chain and organic electroluminescent element comprising said high molecular weight compound
Kazunori Togashi, Tokyo (JP); Hideyoshi Kitahara, Tokyo (JP); Junichi Izumida, Tokyo (JP); Hiroki Hirai, Tokyo (JP); and Mika Shinoda, Tokyo (JP)
Assigned to HODOGAYA CHEMICAL CO., LTD., Tokyo (JP)
Appl. No. 16/972,672
Filed by HODOGAYA CHEMICAL CO., LTD., Tokyo (JP)
PCT Filed Jul. 1, 2019, PCT No. PCT/JP2019/026149
§ 371(c)(1), (2) Date Dec. 7, 2020,
PCT Pub. No. WO2020/009069, PCT Pub. Date Jan. 9, 2020.
Claims priority of application No. 2018-126980 (JP), filed on Jul. 3, 2018.
Prior Publication US 2021/0253785 A1, Aug. 19, 2021
Int. Cl. H01L 51/50 (2006.01); C08G 61/12 (2006.01); H10K 85/60 (2023.01); H10K 50/11 (2023.01); H10K 50/15 (2023.01); H10K 50/17 (2023.01); H10K 50/18 (2023.01)
CPC C08G 61/12 (2013.01) [H10K 85/631 (2023.02); H10K 50/11 (2023.02); H10K 50/15 (2023.02); H10K 50/17 (2023.02); H10K 50/18 (2023.02)] 12 Claims
OG exemplary drawing
 
1. A high molecular weight compound comprising a repeating unit represented by a general formula (3) below, that is constituted by a triarylamine structural unit represented by a general formula (1) below and a bonding structural unit represented by a general formula (2) below, and having a weight average molecular weight of 10,000 or more and less than 1,000,000 on a polystyrene basis,

OG Complex Work Unit Chemistry
where R1 each independently represents a hydrogen atom, a heavy hydrogen atom, a cyano group, a nitro group, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, an alkyl group or an alkyloxy group with 1 to 8 carbon atoms, a cycloalkyl group or a cycloalkyloxy group with 5 to 10 carbon atoms, an alkenyl group with 2 to 6 carbon atoms, or an aryloxy group,
R2 each independently represents an alkyl group or an alkyloxy group with 1 to 8 carbon atoms, or a cycloalkyl group or a cycloalkyloxy group with 5 to 10 carbon atoms,
X represents a hydrogen atom, an amino group, a monovalent aryl group, or a monovalent heteroaryl group,
L represents a divalent phenyl group, and n represents an integer of 0 to 3, and
a represents an integer of 0 to 3, and b represents an integer of 0 to 4; and
further comprising a repeating unit which is constituted by a thermal crosslinkable structural unit and the bonding structural unit represented by the general formula (2) above.