US 12,214,425 B2
Method for manufacturing composite material, and composite material
Yeon Soo Lee, Daejeon (KR); Dong Woo Yoo, Daejeon (KR); and Jin Kyu Lee, Daejeon (KR)
Assigned to LG CHEM, LTD., Seoul (KR)
Appl. No. 17/617,328
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Jun. 17, 2020, PCT No. PCT/KR2020/007823
§ 371(c)(1), (2) Date Dec. 8, 2021,
PCT Pub. No. WO2020/256394, PCT Pub. Date Dec. 24, 2020.
Claims priority of application No. 10-2019-0071483 (KR), filed on Jun. 17, 2019.
Prior Publication US 2022/0219233 A1, Jul. 14, 2022
Int. Cl. B22F 3/26 (2006.01); B22F 3/11 (2006.01)
CPC B22F 3/26 (2013.01) [B22F 3/1103 (2013.01); B22F 3/1146 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method for manufacturing a composite material, the method comprising steps of:
(a) providing a metal foam;
(b) preparing a mixture comprising the metal foam and a curable polymer;
(c) curing the curable polymer of the mixture to obtain the composite material; and
(d) performing a planarization treatment on at least one of the metal foam before preparing the mixture, the mixture before curing the curable polymer, or the composite material,
wherein the step (d) is performed on the metal foam before the step (b), and
wherein after the step (d) is performed, a porosity of the metal foam is in a range of 30% to 60%.