US 11,944,697 B2
Manufacturing process for 2-phase spray conditioner
Jens Delowsky, Norderstedt (DE)
Assigned to HENKEL AG & CO. KGAA, Duesseldorf, NY (US)
Filed by Henkel AG & Co. KGaA, Duesseldorf (DE)
Filed on Mar. 3, 2021, as Appl. No. 17/190,754.
Prior Publication US 2021/0290500 A1, Sep. 23, 2021
Int. Cl. A61K 8/06 (2006.01); A61K 8/89 (2006.01); A61Q 5/12 (2006.01)
CPC A61K 8/064 (2013.01) [A61K 8/89 (2013.01); A61Q 5/12 (2013.01); A61K 2800/5426 (2013.01); A61K 2800/594 (2013.01); A61K 2800/596 (2013.01); A61K 2800/805 (2013.01); A61K 2800/87 (2013.01)] 18 Claims
 
1. A process for the preparation of a hair treatment composition in the form of a two-phase system having two separate, optically detectable continuous phases with a common horizontal phase boundary, comprising the following process steps:
a) Providing a water phase (Ia) comprising water and optionally other components and heating the water phase to a temperature of from about 70 to about 95° C., wherein the water phase (Ia)—based on its total weight—comprises:
from about 0.01 to about 2% by weight of at least one cationic polymer and/or
from about 0.01 to about 1% by weight of at least one cationic surfactant,
b) Providing an oil phase (Ib) comprising at least one oil and at least one emulsifier, and adding the oil phase to the heated water phase from step a),
c) Homogenizing the mixture from step b),
d) Cooling the emulsion resulting from step c) and optionally adding further active ingredients,
e) Filling the emulsion resulting from step d) into transparent containers, whereby in the resting state after from about 10 to about 90 minutes a separation into a water phase (IIa) and an emulsion phase (IIb) occurs.