US 12,241,182 B2
Leather fiber for the leather spun yarn having improved property
Ji Eon Kim, Seoul (KR); and Bong Jin Choi, Gwangju-si (KR)
Assigned to ATKO PLANNING INC., Paju-si (KR)
Appl. No. 17/619,226
Filed by ATKO PLANNING INC., Paju-si (KR)
PCT Filed Dec. 1, 2021, PCT No. PCT/KR2021/018029
§ 371(c)(1), (2) Date Dec. 14, 2021,
PCT Pub. No. WO2023/027259, PCT Pub. Date Mar. 2, 2023.
Claims priority of application No. 10-2021-0113047 (KR), filed on Aug. 26, 2021.
Prior Publication US 2024/0183084 A1, Jun. 6, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. D02G 3/04 (2006.01); D02G 3/10 (2006.01)
CPC D02G 3/04 (2013.01) [D02G 3/10 (2013.01); D10B 2201/02 (2013.01); D10B 2211/02 (2013.01); D10B 2211/20 (2013.01)] 8 Claims
OG exemplary drawing
 
1. Leather fibers having an average length of 15 mm or more, and an average thickness of 0.05 to 0.15 mm,
wherein 40% or more of the leather fibers have a length of 15 mm or more, and
wherein more than 15% of the leather fibers have a length/thickness ratio of more than 200.