US 12,466,021 B2
Exterior material for home appliance
Minkyung Lee, Suwon-si (KR); Dosoo Sung, Suwon-si (KR); Kyunghwan Lee, Suwon-si (KR); Youngdeog Koh, Suwon-si (KR); and Kwangjoo Kim, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on May 3, 2023, as Appl. No. 18/142,961.
Application 18/142,961 is a continuation of application No. PCT/KR2023/004982, filed on Apr. 13, 2023.
Claims priority of application No. 10-2022-0090595 (KR), filed on Jul. 21, 2022; and application No. 10-2022-0111042 (KR), filed on Sep. 1, 2022.
Prior Publication US 2024/0025002 A1, Jan. 25, 2024
Int. Cl. B32B 3/30 (2006.01); A46B 9/00 (2006.01); A46D 1/00 (2006.01); B24B 7/19 (2006.01); B32B 15/04 (2006.01); B32B 15/08 (2006.01); B32B 15/18 (2006.01); D06F 39/12 (2006.01); F25D 23/06 (2006.01)
CPC B24B 7/19 (2013.01) [A46B 9/005 (2013.01); A46D 1/0207 (2013.01); D06F 39/12 (2013.01); A46B 2200/3086 (2013.01); A46B 2200/3093 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An exterior material to form an exterior of a home appliance, the exterior material comprising:
a base material having a surface with at least one hierarchical circular structure pattern on the surface, the at least one hierarchical circular structure pattern having a diameter of 500 mm or less, and including:
a plurality of concentric circular structures, concentric circular structures of the plurality of concentric circular structures having different diameters, and
a pattern density, in percentage of area of the surface, of about 20% to about 90%,
wherein the exterior material has an average surface roughness (Ra) of 0.05 μm to 0.28 μm.