Residue-minimized antiperspirant composition with improved skin feel

Patent metadata

Field	Value
Publication number	US-11045399-B2
Application number	US-201816224285-A
Country	US
Kind code	B2
Filing date	Dec 18, 2018
Priority date	Dec 19, 2017
Publication date	Jun 29, 2021
Grant date	Jun 29, 2021

Abstract

The present disclosure relates to substantially anhydrous sweat-suppressing compositions which leave minimal residues on textiles and at the same time result in an improved skin feel after application, containing combinations of rice starch and cornstarch or maize amylopectin, volatile and non-volatile oils, and at least one sweat-suppressing active agent.

First claim

What is claimed is:

1. Antiperspirant composition for personal body care, comprising
a) at least one sweat suppressing agent which is present in suspended, non-dissolved form and is selected from aluminum salts and aluminum-zirconium salts,
b) from about 0 to about 7% w/w free water,
c) at least one non-volatile oil that is liquid at a temperature of about 20° C. and a pressure of about 1013.25 mbar in a total quantity from about 28 to about 61% w/w,
d) at least one volatile oil that is liquid at a temperature of about 20° C. and a pressure of about 1013.25 mbar in a total quantity from about 5 to about 35% w/w,
e) rice starch, and
f) cornstarch,
wherein all percentages by weight relate to the weight of the composition, disregarding any propellants present,
wherein the at least one volatile oil is selected from volatile silicone oils and volatile non-silicone oils and mixtures thereof;
wherein the rice starch is present in an amount of from about 0.3 to about 1% w/w,
wherein the cornstarch is esterified with 1-octadecenyl succinic acid and is present in an amount of from about 0.4 to about 1.5% w/w, wherein all percentages by weight relate to the weight of the composition, disregarding any propellants present,
wherein the at least one volatile silicone oil comprises decamethylcyclopentasiloxane,
wherein the at least one non-volatile oil is chosen from dimethicone, isopropyl myristate, 2-ethylhexyl palmitate, isopropyl palmitate, and combinations thereof,
wherein at least one sweat suppressing agent is included in a total quantity from about 23 to about 27% w/w, relative to the total weight of the active substance without water of crystallization (United States Pharmacopoeia (USP)) in the composition disregarding any propellants present, and
wherein the composition further comprises disteardimonium hectorite and propylene carbonate.

2. Composition according to claim 1 , wherein the rice starch is present as a powder treated with cationic surfactants, wherein the percentage of cationic surfactants is from about 0.01 to about 0.3% w/w relative to the weight of the rice starch.

3. Composition according to claim 1 , wherein the cornstarch is included in the form of a capsule materials for active agents.

4. Composition according to claim 1 , wherein the at least one volatile silicone oil further comprises octamethyl cyclotetrasiloxane, dodecamethyl cyclohexasiloxane, hexamethyl disiloxane, octamethyl trisiloxane and decamethyl tetrasiloxane and mixtures thereof.

5. Composition according to claim 1 , wherein the at least one non-volatile oil further comprises esters of linear or branched saturated or unsaturated fatty alcohols having from about 2 to about 30 carbon atoms with linear or branched saturated or unsaturated fatty acids having from about 2 to about 30 carbon atoms, which is optionally hydroxylated.

6. Composition according to claim 1 , wherein the at least one non-volatile oil further comprises non-volatile silicone oils.

7. Composition according to claim 1 , wherein at least one thickening agent, selected from hydrophobized clay minerals, is included in a total quantity from about 0.5 to about 10% w/w, relative to the total weight of the composition without propellant.

8. The composition of claim 1 wherein the cornstarch is present in the form of one or more capsules wherein each capsule comprises one or more active agents chosen from fragrances, perfume oils, skin cooling agents, vitamins and/or antioxidants or combinations thereof.

9. The composition of claim 1 wherein the at least one volatile non-silicone oil further comprises isodecane, isoundecane, isododecane, isotridecane, isotetradecane, isopentadecane, and isohexadecane, and mixtures thereof.

10. The composition of claim 1 wherein the
at least one sweat suppressing agent is present in an amount of about 23.5% w/w;
rice starch is present in an amount of about 1% w/w,
the cornstarch that is esterified with 1-octadecenyl succinic acid is present in an amount of about 1% w/w, wherein all percentages by weight relate to the weight of the composition in each case, disregarding any propellants present,
the decamethylcyclopentasiloxane is present in an amount of about 21% w/w;
the isopropyl myristate is present in an amount of about 30% w/w; and
the 2-ethylhexy palmitate is present in an amount of about 6% w/w.

11. The composition of claim 1 wherein the
at least one sweat suppressing agent is present in an amount of about 23.5% w/w;
rice starch is present in an amount of about 0.5% w/w,
the cornstarch that is esterified with 1-octadecenyl succinic acid is present in an amount of about 0.5% w/w, wherein all percentages by weight relate to the weight of the composition in each case, disregarding any propellants present,
the decamethylcyclopentasiloxane is present in an amount of about 21% w/w;
the isopropyl palmitate is present in an amount of about 30% w/w; and
the 2-ethylhexy palmitate is present in an amount of about 6% w/w.

12. The composition of claim 1 wherein the
at least one sweat suppressing agent is present in an amount of about 23.5% w/w;
rice starch is present in an amount of about 0.9% w/w,
the cornstarch that is esterified with 1-octadecenyl succinic acid is present in an amount of about 1.5% w/w, wherein all percentages by weight relate to the weight of the composition in each case, disregarding any propellants present,
the decamethylcyclopentasiloxane is present in an amount of about 20% w/w;
the isopropyl palmitate is present in an amount of about 30% w/w; and
the 2-ethylhexy palmitate is present in an amount of about 6% w/w.

13. The composition of claim 1 wherein the
at least one sweat suppressing agent is present in an amount of about 23.5% w/w;
rice starch is present in an amount of about 0.3% w/w,
the cornstarch that is esterified with 1-octadecenyl succinic acid is present in an amount of about 0.7% w/w, wherein all percentages by weight relate to the weight of the composition in each case, disregarding any propellants present,
the decamethylcyclopentasiloxane is present in an amount of about 21% w/w;
the isopropyl palmitate is present in an amount of about 30% w/w; and
the 2-ethylhexy palmitate is present in an amount of about 6% w/w.

14. The composition of claim 1 having about 0% w/w of free water.

15. A non-therapeutic, cosmetic method for reducing and/or regulating sweat production and/or body odor of a subject, in which a composition according to claim 1 is applied in an effective quantity to the skin of the subject.

16. Sprayable antiperspirant comprising a composition according to claim 1 , wherein the composition is present in an aerosol container together with a compressed, gas-phase propellant.

Assignees

• Henkel Ag & Co Kgaa

Inventors

• Doering Thomas
• Solich Daniel

Classifications

• A61K8/044

  Suspensions · CPC title

• A61K8/37

  Esters of carboxylic acids · CPC title

• A61K8/31

  Hydrocarbons · CPC title

• A61K8/28

  Zirconium; Compounds thereof · CPC title

• A61K8/046

  Aerosols; Foams · CPC title