US 12,116,506 B2
Adhesive composition
Min Jin Ko, Daejeon (KR); Jae Ho Jung, Daejeon (KR); Min A Yu, Daejeon (KR); Min Kyoun Kim, Daejeon (KR); Byung Kyu Cho, Daejeon (KR); Taek Yong Lee, Daejeon (KR); and Dong Yong Kim, Daejeon (KR)
Assigned to LG Chem, Ltd., Seoul (KR)
Appl. No. 17/262,501
Filed by LG Chem, Ltd., Seoul (KR)
PCT Filed Jul. 25, 2019, PCT No. PCT/KR2019/009232
§ 371(c)(1), (2) Date Jan. 22, 2021,
PCT Pub. No. WO2020/022797, PCT Pub. Date Jan. 30, 2020.
Claims priority of application No. 10-2018-0086341 (KR), filed on Jul. 25, 2018.
Prior Publication US 2021/0284885 A1, Sep. 16, 2021
Int. Cl. C09J 163/04 (2006.01); C08F 212/08 (2006.01); C08F 220/14 (2006.01); C08F 236/06 (2006.01); C08G 18/10 (2006.01); C08G 18/24 (2006.01); C08G 18/48 (2006.01); C08G 18/67 (2006.01); C08G 18/75 (2006.01); C08G 59/14 (2006.01); C08G 59/24 (2006.01); C08G 59/40 (2006.01); C08L 51/04 (2006.01); C09J 11/08 (2006.01); C09J 151/04 (2006.01); C09J 175/08 (2006.01)
CPC C09J 163/04 (2013.01) [C08F 212/08 (2013.01); C08F 220/14 (2013.01); C08F 236/06 (2013.01); C08G 18/10 (2013.01); C08G 18/24 (2013.01); C08G 18/4825 (2013.01); C08G 18/6715 (2013.01); C08G 18/755 (2013.01); C08G 59/14 (2013.01); C08G 59/245 (2013.01); C08G 59/4021 (2013.01); C08L 51/04 (2013.01); C09J 11/08 (2013.01); C09J 151/04 (2013.01); C09J 175/08 (2013.01); C08L 2201/08 (2013.01); C08L 2205/025 (2013.01); C08L 2205/035 (2013.01); C08L 2205/18 (2013.01); C08L 2207/53 (2013.01); C09J 2301/30 (2020.08); C09J 2301/414 (2020.08); C09J 2451/00 (2013.01); C09J 2463/00 (2013.01); C09J 2475/00 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An adhesive composition comprising:
(a) one or more epoxy resins;
(b) a modified epoxy resin having a polyether structure, wherein the modified epoxy resin having the polyether structure is a reactant of an amine-terminated polyether and an epoxy resin;
(c) a core-shell rubber in the form of primary particles and a core-shell rubber in the form of secondary particles, wherein the secondary particles comprise two or more core-shell rubbers in the form of primary particles which are aggregated, and a weight ratio of the core-shell rubber in the form of primary particles is 20 wt % or less; and
(d) one or more epoxy curing agents,
wherein the modified epoxy resin (b) having the polyether structure comprises an amine-terminated polyalkylene glycol having an amine equivalent in a range of 300 to 2,000 and the epoxy resin having an epoxy equivalent in a range of 150 to 300.