	US 11,987,027 B2
	Recycled thermoplastic polyurethane mixed leather and manufacturing method thereof
Chih-Yi Lin, Kaohsiung (TW); Kuo-Kuang Cheng, Kaohsiung (TW); Li-Yuan Chen, Kaohsiung (TW); and Yung-Yu Fu, Kaohsiung (TW)
Assigned to SAN FANG CHEMICAL INDUSTRY CO., LTD., Kaohsiung (TW)
Filed by SAN FANG CHEMICAL INDUSTRY CO., LTD., Kaohsiung (TW)
Filed on Jun. 22, 2022, as Appl. No. 17/846,122.
Claims priority of application No. 110124179 (TW), filed on Jun. 30, 2021.
Prior Publication US 2023/0001681 A1, Jan. 5, 2023
Int. Cl. B32B 27/40 (2006.01); B29D 7/01 (2006.01); B29K 75/00 (2006.01); B29K 105/26 (2006.01); B32B 5/02 (2006.01); B32B 27/08 (2006.01); B32B 27/12 (2006.01)

CPC B32B 27/40 (2013.01) [B29D 7/01 (2013.01); B32B 5/028 (2013.01); B32B 27/08 (2013.01); B32B 27/12 (2013.01); B29K 2075/00 (2013.01); B29K 2105/26 (2013.01); B32B 2262/0292 (2013.01); B32B 2305/70 (2013.01)]

14 Claims

1. An innovative leather, comprising:

a thermoplastic polyurethane (TPU) substrate;

a TPU adhering layer, disposed on the TPU substrate, wherein the TPU adhering layer comprises a first TPU material and a recycled TPU material, the first TPU material and the recycled TPU material are mixed in a weight ratio of 70%:30% to 85%:15%; and

a TPU surface layer, disposed on the TPU adhering layer.