US 12,441,836 B2
Polycarbonate resin and preparation method thereof
Il Hwan Choi, Daejeon (KR); Kyeongmun Kim, Daejeon (KR); Hye Jin Yim, Daejeon (KR); Jaesoon Bae, Daejeon (KR); Jonghwa Baek, Daejeon (KR); Hyeonah Shin, Daejeon (KR); and Min Suk Jung, Daejeon (KR)
Assigned to LG Chem, Ltd., Seoul (KR)
Appl. No. 18/035,572
Filed by LG Chem, Ltd., Seoul (KR)
PCT Filed Aug. 12, 2022, PCT No. PCT/KR2022/012136
§ 371(c)(1), (2) Date May 5, 2023,
PCT Pub. No. WO2023/182589, PCT Pub. Date Sep. 28, 2023.
Claims priority of application No. 10-2022-0035981 (KR), filed on Mar. 23, 2022.
Prior Publication US 2024/0384028 A1, Nov. 21, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. C08G 64/16 (2006.01); C08G 64/30 (2006.01)
CPC C08G 64/1691 (2013.01) [C08G 64/307 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A polycarbonate resin, comprising:
a unit of the following Chemical Formula 1; and
a unit of the following Chemical Formula 2:

OG Complex Work Unit Chemistry
wherein, in Chemical Formulae 1 and 2,
Ar1 and Ar2 are the same as or different from each other, and are each independently a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group,
R1 is hydrogen, deuterium, a halogen group, a cyano group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted silyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group,
R2 and R3 are different from each other, and are each independently hydrogen, deuterium, a halogen group, a cyano group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted silyl group, an aryl group which is unsubstituted or substituted with deuterium, a halogen group, a hydroxyl group, a cyano group, an alkyl group, a cycloalkyl group, an alkoxy group, an alkenyl group, an aryloxy group, an arylthio group, an alkylthio group, an aryl group, or a heteroaryl group, or a substituted or unsubstituted heteroaryl group,
r1 is 1 or 2, and when r1 is 2, each R1 is the same as or different from each other,
r2 and r3 are each an integer from 1 to 4, and when r2 is 2 to 4, two or more R2 are the same as or different from each other, and when r3 is 2 to 4, two or more R3 are the same as or different from each other,
L1 and L2 are the same as or different from each other, and are each independently a substituted or unsubstituted arylene group,
X1 to X8 are the same as or different from each other, and are each independently O or S,
Z1 to Z4 are the same as or different from each other, and are each independently a substituted or unsubstituted alkylene group, or a substituted or unsubstituted cycloalkylene group, and
a, b, c and d are the same as or different from each other, and are each independently an integer from 1 to 10, and when a and b are each 2 to 10, each of Z1-X1 and X2-Z2 are the same as or different from each other.