	US 12,453,705 B2
	Composition for promoting wound healing
Lie-Sian Yap, Taoyuan (TW)
Assigned to BenQ Materials Corporation, Taoyuan (TW)
Filed by BenQ Materials Corporation, Taoyuan (TW)
Filed on Jan. 6, 2023, as Appl. No. 18/151,402.
Application 18/151,402 is a division of application No. 17/204,914, filed on Mar. 17, 2021, granted, now 11,583,503.
Claims priority of application No. 109134458 (TW), filed on Oct. 5, 2020.
Prior Publication US 2023/0149317 A1, May 18, 2023
Int. Cl. A61K 9/50 (2006.01); A61K 33/04 (2006.01); A61K 47/26 (2006.01); A61K 47/44 (2017.01); A61P 17/02 (2006.01)

CPC A61K 9/5031 (2013.01) [A61K 9/5089 (2013.01); A61K 33/04 (2013.01); A61K 47/26 (2013.01); A61K 47/44 (2013.01); A61P 17/02 (2018.01)]

5 Claims

1. A composition for promoting wound healing comprising:

a carrier; and

a plurality of hydrogen sulfide sustained-releasing microspheres encapsulated by the carrier, comprising:

a hydrophobic polymer selected from the group consisting of polycaprolactone (PCL), ethylcellulose, polyglycolide, and combinations thereof;

a surfactant; and

a sodium hydrosulfide, wherein the carrier is present in an amount of 300 weight parts to 400 weight parts based on per hundred weight parts of the plurality of the hydrogen sulfide sustained-releasing microspheres, and in each of the plurality of the hydrogen sulfide sustained-releasing microspheres, a weight ratio of the hydrophobic polymer to the surfactant to of the sodium hydrosulfide is 15-25:0.5-1.5:0.5-1.5.