US 11,926,706 B2
Diamine compound, and polyimide precursor and polyimide film using same
Minju Kim, Daejeon (KR); Jinyoung Park, Daejeon (KR); Hoyong Lee, Daejeon (KR); and Cheol Jun Song, Daejeon (KR)
Assigned to LG CHEM, LTD., Seoul (KR)
Appl. No. 17/276,526
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Jan. 22, 2020, PCT No. PCT/KR2020/001137
§ 371(c)(1), (2) Date Mar. 16, 2021,
PCT Pub. No. WO2020/153771, PCT Pub. Date Jul. 30, 2020.
Claims priority of application No. 10-2019-0009547 (KR), filed on Jan. 25, 2019; and application No. 10-2020-0005487 (KR), filed on Jan. 15, 2020.
Prior Publication US 2022/0041809 A1, Feb. 10, 2022
Int. Cl. C08G 73/10 (2006.01); C07D 209/48 (2006.01); C08J 5/18 (2006.01)
CPC C08G 73/1067 (2013.01) [C07D 209/48 (2013.01); C08G 73/1032 (2013.01); C08G 73/1064 (2013.01); C08J 5/18 (2013.01); C08J 2379/08 (2013.01)] 20 Claims
 
1. A diamine compound represented by the following formula 1:

OG Complex Work Unit Chemistry
In the formula 1,
L is a linker selected from

OG Complex Work Unit Chemistry
Ar1 and Ar2 are each independently a divalent organic group selected from

OG Complex Work Unit Chemistry
R1 to R11 are each independently hydrogen, deuterium, a halogen atom, a cyano group, a hydroxy group, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted haloalkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted alkylsilyl group having 1 to 30 carbon atoms, a substituted or unsubstituted arylsilyl group having 6 to 30 carbon atoms, a substituted or unsubstituted alkylamino group having 1 to 30 carbon atoms, a substituted or unsubstituted arylamino group having 6 to 30 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 30 carbon atoms, a substituted or unsubstituted alkylthio group having 1 to 30 carbon atoms, a substituted or unsubstituted arylthiol group having 6 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, a substituted or unsubstituted aralkyl group having 6 to 30 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 30 carbon atoms, a —COOH group, a substituted or unsubstituted cycloalkyl group having 3 to 30 carbon atoms, an amide group, a substituted or unsubstituted cycloalkyloxy group having 3 to 30 carbon atoms, a substituted or unsubstituted cycloalkylthio group having 1 to 30 carbon atoms, an ester group, —CD3, an azide group, a nitro group, or a substituted or unsubstituted (3-30 membered) heteroaryl group comprising at least one selected from B, N, O, S, P (═O), Si and P,
Y is selected from

OG Complex Work Unit Chemistry
l, m, n, o, p, q, r, s, t, u and v are each an integer of 0 to 4, and when l, m, n, o, p, q, r, s, t, u and v are integers of 2 to 4, each of R1 to R11 is the same or different.