US 12,240,803 B2
Diamine compound, and polyimide precursor and polyimide film using same
Jeeseon Kim, Daejeon (KR); Kyunghwan Kim, Daejeon (KR); Hoyong Lee, Daejeon (KR); and Cheol Jun Song, Daejeon (KR)
Assigned to LG CHEM, LTD., Seoul (KR)
Appl. No. 17/312,629
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Feb. 14, 2020, PCT No. PCT/KR2020/002138
§ 371(c)(1), (2) Date Jun. 10, 2021,
PCT Pub. No. WO2020/175838, PCT Pub. Date Sep. 3, 2020.
Claims priority of application No. 10-2019-0023818 (KR), filed on Feb. 28, 2019; and application No. 10-2020-0006133 (KR), filed on Jan. 16, 2020.
Prior Publication US 2022/0017461 A1, Jan. 20, 2022
Int. Cl. C07C 323/42 (2006.01); C08G 73/10 (2006.01); C08J 5/18 (2006.01)
CPC C07C 323/42 (2013.01) [C08G 73/10 (2013.01); C08J 5/18 (2013.01); C08J 2379/08 (2013.01)] 4 Claims
 
1. A diamine compound of the following formula 1:

OG Complex Work Unit Chemistry
In the formula 1,
Z is —NH—,
R1 to R4 are each independently hydrogen, deuterium, a halogen atom, a cyano 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 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, an azide 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,
a, b, c and d are each an integer of 0 to 4, and when a, b, c and d are each an integer of 2 to 4, each of a, b, c and d is the same or different, and
each of the two amino group substituents is substituted at a meta-position or para-position of each of the benzene rings with respect to the carbonyl group in each of the benzene rings.