	US 12,371,520 B2
	Copolymer dispersant and dispersion using same
Kwang-In Kim, Jeollabuk-do (KR); Jin-Ju Eom, Jeollabuk-do (KR); Chang-Beom Kim, Jeollabuk-do (KR); Se-Man Kwon, Jeollabuk-do (KR); Si-Jin Song, Jeollabuk-do (KR); Jae-Hee Han, Jeollabuk-do (KR); Seung-Heon Kim, Jeollabuk-do (KR); and Chan-Su Park, Jeollabuk-do (KR)
Assigned to HANSOL CHEMICAL CO., LTD, Seoul (KR)
Appl. No. 18/568,229
Filed by HANSOL CHEMICAL CO., LTD, Seoul (KR)
PCT Filed Feb. 21, 2022, PCT No. PCT/KR2022/002503 § 371(c)(1), (2) Date Dec. 7, 2023, PCT Pub. No. WO2023/277297, PCT Pub. Date Jan. 5, 2023.
Claims priority of application No. 10-2021-0084505 (KR), filed on Jun. 29, 2021.
Prior Publication US 2024/0287230 A1, Aug. 29, 2024
Int. Cl. C08F 220/18 (2006.01); C08F 220/30 (2006.01); C08K 3/04 (2006.01); H01G 11/36 (2013.01); H01M 4/62 (2006.01)

CPC C08F 220/1818 (2020.02) [C08F 220/301 (2020.02); C08K 3/041 (2017.05); H01G 11/36 (2013.01); H01M 4/62 (2013.01); C08K 2201/001 (2013.01); C08K 2201/005 (2013.01)]

16 Claims

1. A copolymer represented by Formula 1,

wherein in Formula 1,

R₁to R₉are each independently hydrogen or a straight-chain or branched-chain hydrocarbon having 1 to 4 carbon atoms,

R′₁is a straight-chain or branched-chain aliphatic hydrocarbon having 5 to 22 carbon atoms,

R′₂comprises two or more substituted or unsubstituted aromatic rings,

R′₃comprises any one or more selected from the group consisting of cyano (CN), pyrrolidone (NC4H6O), and carboxylic acid (COOH),

m and n are each independently integers of 0 to 4,000,

wherein when either m or n is 0, the remainder is not 0, and

l is an integer of 1 to 7,000.