US 12,251,914 B2
Stretchable substrate having improved thickness deformation uniformity through control of spatial crosslinking degree and method of manufacturing the same
Seungjun Chung, Seoul (KR); Jun Chan Choi, Seoul (KR); Hoon Yeub Jeong, Seoul (KR); Phillip Lee, Seoul (KR); Jeong Gon Son, Seoul (KR); and Heesuk Kim, Seoul (KR)
Assigned to Korea Institute of Science and Technology, Seoul (KR)
Filed by Korea Institute of Science and Technology, Seoul (KR)
Filed on Sep. 14, 2023, as Appl. No. 18/467,610.
Claims priority of application No. 10-2023-0094973 (KR), filed on Jul. 21, 2023.
Prior Publication US 2025/0026102 A1, Jan. 23, 2025
Int. Cl. B32B 3/12 (2006.01); B32B 7/022 (2019.01); B32B 37/14 (2006.01)
CPC B32B 3/12 (2013.01) [B32B 7/022 (2019.01); B32B 37/146 (2013.01); B32B 2307/51 (2013.01); B32B 2307/54 (2013.01); B32B 2307/7376 (2023.05); B32B 2457/00 (2013.01)] 18 Claims
OG exemplary drawing
 
10. A stretchable substrate having improved thickness deformation uniformity through control of a spatial crosslinking degree, the stretchable substrate comprising:
a substrate part made of an elastic material;
an auxetic including a plurality of unit structures and formed on the substrate part; and
a fixing part configured to fix the auxetic,
wherein the fixing part has a different vertical crosslinking density at each position.