US 11,981,970 B2
Leather odor removal composition and method of manufacturing leather with reduced odor using the same
Sung Hoon Lee, Gyeonggi-do (KR); Ha Young Yoon, Incheon (KR); Myoung Ryoul Lee, Seoul (KR); Seung Jin Lee, Seoul (KR); and Eun Ju Noh, Gyeonggi-do (KR)
Assigned to Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed on Oct. 5, 2021, as Appl. No. 17/494,580.
Claims priority of application No. 10-2020-0155082 (KR), filed on Nov. 19, 2020.
Prior Publication US 2022/0154298 A1, May 19, 2022
Int. Cl. C14C 9/02 (2006.01); C14C 1/04 (2006.01); C14C 1/06 (2006.01); C14C 3/06 (2006.01); C14C 3/10 (2006.01); C14C 11/00 (2006.01)
CPC C14C 9/02 (2013.01) [C14C 1/04 (2013.01); C14C 1/06 (2013.01); C14C 3/06 (2013.01); C14C 3/10 (2013.01); C14C 11/00 (2013.01)] 13 Claims
 
1. A leather odor removal composition comprising:
a filler comprising diphenyl ether; and
a softening mixture,
wherein the softening mixture comprises
a first softener comprising fatty acid, glycerol, and glyceride,
a second softener comprising fatty acid, glycerol, and glyceride,
a third softener comprising fatty acid, sterol, and glyceride, and
an auxiliary filler comprising sulfur dioxide,
wherein the first softener comprises oleic acid,
wherein the second softener comprises butyl carbitol,
wherein the third softener comprises benzenepropanoic acid,
wherein the leather odor removal composition comprises the auxiliary filler in an amount of about 80 to 150 parts by weight based on 100 parts by weight of the filler,
wherein the leather odor removal composition comprises the first softener in an amount of about 200 to 300 parts by weight based on 100 parts by weight of the filler,
wherein the leather odor removal composition comprises the second softener in an amount of about 250 to 350 parts by weight based on 100 parts by weight of the filler,
wherein the leather odor removal composition comprises the third softener in an amount of about 80 to 150 parts by weight based on 100 parts by weight of the filler.