Patent ID: 11877506
Assignee: SK MATERIALS JNC CO., LTD.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC H  C  G  Y | IPC C  H

Claim 4:
5. The polycyclic aromatic compound according to claim 3,
wherein:
Ra11, Ra12, Ra13, Ra21, Ra22, Ra23, Ra31, Ra32, Ra33, Rb11, Rb12, Rb21, Rb22, Rb23, Rb24, Rc11, Rc12, Rc31, Rc32, Rc33, Rc34 are each independently hydrogen, an aryl having 6 to 16 carbons, a heteroaryl having 2 to 20 carbons, a diarylamino (provided that the aryl is an aryl having 6 to 10 carbons), an alkyl having 1 to 12 carbons or a cycloalkyl having 3 to 16 carbons, wherein the aryl or the heteroaryl may have an alkyl having 1 to 6 carbons or a cycloalkyl having 3 to 14 carbons as a substituent;
Y11, Y21, Y31 are each independently B, P, P═O, or P═S; and
X11, X12, X21, X22, X31, X32 are each independently O, N—R, or C(—R)2, wherein R in the above N—R is an aryl having 6 to 10 carbons, an alkyl having 1 to 4 carbons, or a cycloalkyl having 5 to 10 carbons, and the above aryl may have an alkyl having 1 to 4 carbons or a cycloalkyl having 5 to 10 carbons as a substituent, R in the above C(—R)2 is hydrogen, an aryl having 6 to 10 carbons, an alkyl having 1 to 4 carbons, or a cycloalkyl having 5 to 10 carbons and the above aryl may have an alkyl having 1 to 4 carbons or a cycloalkyl having 5 to 10 carbons as a substituent.