	US 12,201,711 B2
	Wax dispersions having conditioning properties
Claus Nieendick, Düsseldorf-Holthausen (DE); Werner Mauer, Düsseldorf-Holthausen (DE); Anke Becker, Düsseldorf-Holthausen (DE); and Sybille Cornelsen, Monheim (DE)
Assigned to BASF SE, (DE)
Appl. No. 17/057,755
Filed by BASF SE, Ludwigshafen (DE)
PCT Filed May 27, 2019, PCT No. PCT/EP2019/063639 § 371(c)(1), (2) Date Nov. 23, 2020, PCT Pub. No. WO2019/228975, PCT Pub. Date Dec. 5, 2019.
Claims priority of application No. 18174997 (EP), filed on May 30, 2018.
Prior Publication US 2023/0240956 A1, Aug. 3, 2023
Int. Cl. A61K 8/37 (2006.01); A61K 8/04 (2006.01); A61K 8/44 (2006.01); A61K 8/46 (2006.01); A61Q 5/12 (2006.01)

CPC A61K 8/375 (2013.01) [A61K 8/04 (2013.01); A61K 8/44 (2013.01); A61K 8/463 (2013.01); A61Q 5/12 (2013.01)]

18 Claims

1. An aqueous wax dispersion suitable as opacifier and/or conditioner for cosmetic formulations, comprising

a) 20% to 35% by weight, based on the aqueous dispersion, of an ethylene glycol fatty acid ester as wax body and

b) 0.5% to 3.0% by weight, based on the aqueous dispersion, of a fatty acid partial glyceride and

c) 8% to 15% by weight, based on the aqueous dispersion, of an anionic surfactant selected from the group formed by fatty alcohol ether sulfates and

d) an amphoteric surfactant selected from the group formed by betaines,

wherein the ethylene glycol fatty acid ester (a) is formed by stearic acid or a mixture of fatty acids comprising 85-100% by weight, based on fatty acid, of stearic acid;

wherein the average particle diameter of (a) is in the range from 1 to 4 μm; and

wherein the wax dispersion does not result in pearlescence.