US 12,486,467 B2
O-alkylated sterically hindered antioxidants
Jun Dong, Friendswood, TX (US); Jeonkyu Lee, Ulsan (KR); Gerard Mulqueen, Frauenfeld (CH); and Shinhyun Kim, Ulsan (KR)
Assigned to SONGWON INDUSTRIAL CO., LTD., Ulsan (KR)
Appl. No. 18/569,488
Filed by SONGWON INDUSTRIAL CO., LTD., Ulsan (KR)
PCT Filed Jun. 22, 2022, PCT No. PCT/KR2022/008901
§ 371(c)(1), (2) Date Dec. 12, 2023,
PCT Pub. No. WO2022/270925, PCT Pub. Date Dec. 29, 2022.
Claims priority of provisional application 63/214,888, filed on Jun. 25, 2021.
Prior Publication US 2024/0279565 A1, Aug. 22, 2024
Int. Cl. C10M 129/70 (2006.01); C07C 69/734 (2006.01); C08K 5/134 (2006.01); C10M 129/76 (2006.01); C10M 169/04 (2006.01); C10N 30/02 (2006.01); C10N 30/10 (2006.01); C10N 30/20 (2006.01); C10N 40/25 (2006.01)
CPC C10M 129/70 (2013.01) [C07C 69/734 (2013.01); C08K 5/1345 (2013.01); C10M 129/76 (2013.01); C10M 169/04 (2013.01); C10M 2207/282 (2013.01); C10M 2207/284 (2013.01); C10N 2030/02 (2013.01); C10N 2030/10 (2013.01); C10N 2030/20 (2013.01); C10N 2040/25 (2013.01)] 24 Claims
 
1. A composition comprising
i) a compound of the general formula (I)

OG Complex Work Unit Chemistry
in which
R1 is a C7-C9 alkyl group;
R2 is a methyl group; and
R3 is a tert-butyl group.