US 12,115,234 B2
Method of preparing a cosmetic component
Anton Eugene Smit, Montague Gardens (ZA); Haydn Kriel, Montague Gardens (ZA); Megan Patricia Coates, Montague Gardens (XK); and Justin Stone, Montague Gardens (ZA)
Assigned to THE STELLENBOSCH NANOFIBER COMPANY (PTY) LTD, Montague Gardens (ZA)
Appl. No. 17/767,194
Filed by THE STELLENBOSCH NANOFIBER COMPANY (PTY) LTD, Montague Gardens (ZA)
PCT Filed Oct. 7, 2019, PCT No. PCT/IB2019/058519
§ 371(c)(1), (2) Date Apr. 7, 2022,
PCT Pub. No. WO2021/069952, PCT Pub. Date Apr. 15, 2021.
Prior Publication US 2022/0370304 A1, Nov. 24, 2022
Int. Cl. A61K 8/02 (2006.01); A61K 8/73 (2006.01); A61K 8/81 (2006.01); A61Q 19/10 (2006.01)
CPC A61K 8/0212 (2013.01) [A61K 8/73 (2013.01); A61K 8/735 (2013.01); A61K 8/8111 (2013.01); A61Q 19/10 (2013.01); A61K 2800/28 (2013.01)] 15 Claims
 
1. A method for preparing a cosmetic component which includes the steps of applying a layer of a dry cosmetic ingredient between a pair of fibrous sheets obtained by electrospinning one or more polymeric materials at least one of which is capable of cold flow under pressure, and characterised in that the layers of fibrous sheets are subjected to sufficient pressure over their surfaces to cause cold flow of at least some of the polymeric material such that at least parts of the fibrous sheets bond with each other and entrap the cosmetic ingredient in position between them.