Transparent antiperspirant gels

Patent metadata

Field	Value
Publication number	US-9320922-B2
Application number	US-82327210-A
Country	US
Kind code	B2
Filing date	Jun 25, 2010
Priority date	Dec 28, 2007
Publication date	Apr 26, 2016
Grant date	Apr 26, 2016

Abstract

Transparent antiperspirant compositions in the form of a water-in-oil emulsion containing a balanced mixture of selected oil components and emulsifiers, thereby improving the antiperspirant effect of the compositions.

First claim

We claim:

1. Transparent perspiration-inhibiting composition in the form of a water-in-oil emulsion, comprising:
a) an external oil phase in an amount of 10 to 20 wt % and having
a.i) at least one symmetrical, asymmetrical, or cyclic ester of carbonic acid with linear or branched C6 to C22 alkanols,
a.ii) at least one addition product of 1 to 14 propylene oxide units with univalent or polyvalent C3-16 alkanols, and
a.iii) 0 to a maximum of 3 wt % cyclomethicone,
b) a dispersed aqueous phase in an amount of 75 to 90 wt % and having at least one perspiration-inhibiting active substance chosen from aluminum-zirconium compounds, and at least one compound chosen from water-soluble polyvalent Ca to C9 alkanols having 2 to 6 hydroxyl groups and water-soluble polyethylene glycols having 3 to 20 ethylene oxide units, wherein the water-soluble polyvalent C2 to C9 alkanols having 2 to 6 hydroxyl groups and water-soluble polyethylene glycols having 3 to 20 ethylene oxide units are present in an amount of 20 to 60 wt. %,
c) at least one silicone-based water-in-oil emulsifier having at least one alkyl substituent R having 4 to 20 carbon atoms present in an amount of 2 to 3 wt. %,
d) at least one polyethylene glycol ether of a linear or branched C12 to C22 alkanol with 35 to 150 ethylene oxide units present in an amount of 2 to 3 wt. % and selected from the group consisting of Laureth-35, Laureth-40, Laureth-45, Laureth-50, Laureth-55, Laureth-60, Laureth-65, Laureth-70, Laureth-75, Laureth-80, Laureth-85, Laureth-90, Laureth-95, Laureth-100, Myristeth-35, Myristeth-40, Myristeth-45, Myristeth-50, Myristeth-55, Myristeth-60, Myristeth-65, Myristeth-70, Myristeth-75, Myristeth-80, Myristeth-85, Myristeth-90, Myristeth-95, Myristeth-100, Ceteth-35, Ceteth-40, Ceteth-45, Ceteth-50, Ceteth-55, Ceteth-60, Ceteth-65, Ceteth-70, Ceteth-75, Ceteth-80, Ceteth-85, Ceteth-90, Ceteth-95, Ceteth-100, Ceteth-110, Ceteth-120, Ceteth-130, Ceteth-140, Ceteth-150, Isoceteth-35, Isoceteth-40, Isoceteth-45, Isoceteth-50, Isoceteth-55, Isoceteth-60, Isoceteth-65, Isoceteth-70, Isoceteth-75, Isoceteth-80, Isoceteth-85, Isoceteth-90, Isoceteth-95, Isoceteth-100, Isoceteth-110, Isoceteth-120, Isoceteth-130, Isoceteth-140, Isoceteth-150, Steareth-35, Steareth-40, Steareth-45, Steareth-50, Steareth-55, Steareth-60, Steareth-65, Steareth-70, Steareth-75, Steareth-80, Steareth-85, Steareth-90, Steareth-95, Steareth-100, Steareth-110, Steareth-120, Steareth-130, Steareth-140, Steareth-150, Isosteareth-35, Isosteareth-40, Isosteareth-45, Isosteareth-50, Isosteareth-55, Isosteareth-60, Isosteareth-65, Isosteareth-70, Isosteareth-75, Isosteareth-80, Isosteareth-85, Isosteareth-90, Isosteareth-95, Isosteareth-100, Isosteareth-110, Isosteareth-120, Isosteareth-130, Isosteareth-140, Isosteareth-150, Arachideth-35, Arachideth-40, Arachideth-45, Arachideth-50, Arachideth-55, Arachideth-60, Arachideth-65, Arachideth-70, Arachideth-75, Arachideth-80, Araehideth-85, Arachideth-90, Arachideth-95, Arachideth-100, Arachideth-110, Arachideth-120, Arachideth-130, Arachideth-140, Arachideth-150, Beheneth-35, Beheneth-40, Beheneth-45, Beheneth-50, Beheneth-55, Beheneth-60, Beheneth-65, Beheneth-70, Beheneth-75, Beheneth-80, Beheneth-85, Beheneth-90, Beheneth-95, Beheneth-100, Beheneth-110, Beheneth-120, Beheneth-130, Beheneth-140, Beheneth-150, and mixtures thereof,
e) no silicone-free water-in-oil emulsifier,
all wt % referring to total weight of the emulsion;
wherein the at least one perspiration-inhibiting active substance is present in an amount of from 10 to 22 wt %, based on active-substance content per total weight of the emulsion and wherein the composition has a viscosity of from 30,000 to 150,000 mPas at 21° C.

2. Composition according to claim 1 , wherein oil components a.i) and a.ii) are present at a weight ratio from 4 to 19.

3. Composition according to claim 1 further comprising 1 to 10 wt % ethanol, based on total weight of the emulsion.

4. Composition according to claim 1 , wherein the at least one polyethylene glycol ether is Steareth-100.

Assignees

• Banowski Bernhard
• Claas Marcus
• Buse Nadine
• Henkel Ag & Co Kgaa

Inventors

• Banowski Bernhard
• Claas Marcus
• Buse Nadine

Classifications

• A61K8/064

  Water-in-oil emulsions, e.g. Water-in-silicone emulsions · CPC title

• A61K8/86

  Polyethers · CPC title

• A61K8/39

  Derivatives containing from 2 to 10 oxyalkylene groups · CPC title

• A61Q15/00 Primary

  Anti-perspirants or body deodorants (deodorisation of air A61L9/00) · CPC title

• A61K8/345

  containing more than one hydroxy group · CPC title