US 12,410,380 B2
Method using an organic solvent emulsion process for manufacturing oilgel capsules and method for manufacturing contact parts for a vehicle including the oilgel capsules
Hu Yeon Choi, Suwon-si (KR); In Woong Lyo, Suwon-si (KR); Myoung Hwan Park, Guri-si (KR); Yu Ri Park, Seoul (KR); Geon Woo Lim, Seoul (KR); and Chan Hyun Cho, Seoul (KR)
Assigned to HYUNDAI MOTOR COMPANY, Seoul (KR); KIA CORPORATION, Seoul (KR); and Sahmyook University Industry-Academic Cooperation Foundation, Seoul (KR)
Filed by HYUNDAI MOTOR COMPANY, Seoul (KR); KIA CORPORATION, Seoul (KR); and Sahmyook University Industry-Academic Cooperation Foundation, Seoul (KR)
Filed on Dec. 8, 2022, as Appl. No. 18/077,870.
Claims priority of application No. 10-2022-0037209 (KR), filed on Mar. 25, 2022.
Prior Publication US 2023/0303946 A1, Sep. 28, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C10M 171/06 (2006.01); C10M 145/04 (2006.01); C10M 169/04 (2006.01); C10N 20/06 (2006.01); C10N 50/10 (2006.01)
CPC C10M 171/06 (2013.01) [C10M 145/04 (2013.01); C10M 169/044 (2013.01); C10M 2217/024 (2013.01); C10M 2217/044 (2013.01); C10N 2020/06 (2013.01); C10N 2050/10 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for preparing an emulsion composition comprising oilgel capsules, the method comprising:
mixing an oil and a gelator to produce an oilgel; and
mixing the oilgel and an organic solvent containing a nonionic surfactant to produce at least one oilgel capsule having the oilgel encapsulated by the nonionic surfactant
wherein the at least one oilgel capsule is dispersed in the organic solvent,
wherein the organic solvent is not emulsified with the oil,
wherein the organic solvent comprises dimethylacetamide, N-methyl-2-pyrrolidone, N-octyl pyrrolidone, N-phenyl pyrrolidone, dimethylformamide, dimethyl sulfoxide, methanol, ethanol, propanol, butanol, isopropanol, trifluoroacetic acid, 1,1,2,2-tetrachlorethane, m-Cresol, 2-chlorophenol, butyrolactone, γ-butyrolactone, diglycolamine, tetrahydrofuran, methyl ethyl ketone, sulfolane, derivatives thereof, and combinations thereof, and
wherein the oilgel and the organic solvent containing the nonionic surfactant are mixed at a weight ratio in a range of 1:1 to 1:10.