US 12,274,770 B2
Stabilizer concentrates for wax dispersions
Claus Nieendick, Düsseldorf-Holthausen (DE); Werner Mauer, Düsseldorf-Holthausen (DE); Kathrin Tapp, Düsseldorf-Holthausen (DE); and Sybille Cornelsen, Monheim (DE)
Assigned to BASF SE, Ludwigshafen (DE)
Appl. No. 17/434,776
Filed by BASF SE, Ludwigshafen (DE)
PCT Filed Mar. 10, 2020, PCT No. PCT/EP2020/056291
§ 371(c)(1), (2) Date Aug. 30, 2021,
PCT Pub. No. WO2020/182784, PCT Pub. Date Sep. 17, 2020.
Claims priority of application No. 19162423 (EP), filed on Mar. 13, 2019.
Prior Publication US 2022/0160592 A1, May 26, 2022
Int. Cl. A61K 8/04 (2006.01); A61K 8/41 (2006.01); A61K 8/92 (2006.01); C09K 23/02 (2022.01); C09K 23/18 (2022.01); C09K 23/34 (2022.01); C09K 23/56 (2022.01)
CPC A61K 8/04 (2013.01) [A61K 8/416 (2013.01); A61K 8/922 (2013.01); C09K 23/02 (2022.01); C09K 23/18 (2022.01); C09K 23/34 (2022.01); C09K 23/56 (2022.01); A61K 2800/436 (2013.01); A61K 2800/52 (2013.01)] 20 Claims
 
1. A concentrate for stabilizing a wax dispersion comprising waxes selected from the group consisting of a mono-and/or diester of mono-and/or diethylene glycol consisting of
(a) hydrogenated castor oil, in an amount of 0.5 to 7% by weight based on the concentrate,
(b) one or more amphoteric or zwitterionic surfactants selected from the group consisting of betaines in an amount of 30.0 to 40.0% by weight based on the concentrate,
(c) 5.0 to 10.0% by weight of other auxiliaries or additives, and
(d) add up to 100% by weight water.