Personal cleansing compositions containing zinc amino acid/trimethylglycine halide

Patent metadata

Field	Value
Publication number	US-10188112-B2
Application number	US-201314650952-A
Country	US
Kind code	B2
Filing date	Nov 20, 2013
Priority date	Dec 19, 2012
Publication date	Jan 29, 2019
Grant date	Jan 29, 2019

Abstract

Provided is a personal cleansing composition for application to the skin which comprises a zinc X halide present in an amount to provide at least 0.36 weight % of the composition of zinc, and a surfactant, wherein X is an amino acid or trimethylglycine. Methods of making and using the compositions are also provided. The zinc X halide is can be used to deliver zinc salts to reduce or prevent sunburn, kill bacteria, or reduce perspiration.

First claim

What is claimed is:

1. A personal cleansing composition comprising
a) a skin cleansing effective amount of a surfactant, and
b) a zinc X halide complex present in an amount to provide at least 0.36 weight % of the composition of zinc,
wherein X is an amino acid or trimethylglycine;
wherein upon rinsing the skin, the composition deposits a zinc precipitate which provides an SPF factor of at least 2 to skin after washing skin with the personal cleansing composition.

2. The personal cleansing composition of claim 1 , wherein the cleansing composition is a liquid cleansing composition.

3. The personal cleansing composition according to claim 1 , wherein the zinc X halide complex is formed from precursors, wherein the precursors are a zinc ion source, an X source, and a halide source, wherein the halide source can be part of the zinc ion source, the X source, or a halogen acid.

4. The personal cleansing composition according to claim 3 , wherein the zinc ion source is at least one of zinc oxide, zinc chloride, tetrabasic zinc chloride, zinc carbonate, zinc nitrate, zinc citrate, and zinc phosphate.

5. The personal cleansing composition according to claim 3 , wherein the X source is at least one of a basic amino acid, lysine, arginine, glycine, and trimethylglycine.

6. The personal cleansing composition according to claim 1 wherein the zinc X halide complex is made by combining zinc oxide with an amino acid hydrohalide.

7. The personal cleansing composition according to claim 1 , wherein the zinc X halide complex is made by combining tetrabasic zinc chloride (TBZC) with an amino acid hydrohalide, an amino acid, or trimethylglycine.

8. The personal cleansing composition according to claim 1 , wherein the zinc X halide complex has the formula ZnX 2 Hal 2 or ZnX 3 Hal 2 , wherein Zn is a divalent zinc ion and Hal is a halide ion.

9. The personal cleansing composition according to claim 1 , wherein a total amount of zinc present in the composition is 0.36 to 10 weight %.

10. The personal cleansing composition according to claim 1 , wherein the zinc X halide complex is present in an amount of 1.5 to 40% by weight of the composition.

11. The personal cleansing composition according to claim 1 , wherein a molar ratio of zinc to X in the zinc X halide complex is 2:1 to 1:4.

12. The personal cleansing composition according to claim 1 wherein the halide is chloride.

13. The personal cleansing composition according to claim 1 wherein the zinc X halide complex is zinc lysine chloride complex.

14. The personal cleansing composition according to claim 1 wherein the zinc X halide complex is ZnLysine 2 Cl 2 or ZnLysine 3 Cl 2 complex.

15. The personal cleansing composition according to claim 1 , wherein the composition provides an SPF factor of 2 to 45 to skin after washing skin with the personal cleansing composition.

16. The personal cleansing composition according to claim 1 wherein the composition is a body wash or shower gel.

17. A method of reducing sun damage to the skin or protecting the skin from sunburn or sun damage, comprising washing the skin with the liquid cleansing composition of claim 1 prior to exposure to the sun.

18. A method of killing bacteria comprising contacting the bacteria with the composition of claim 1 .

19. A method of reducing perspiration comprising washing skin with the composition of claim 1 .

Assignees

• Colgate Palmolive Co

Inventors

• Hardy Eugene
• Pan Long
• Nawrocki Shiri
• Arvanitidou Evangelia
• Du-Thumm Laurence D

Classifications

• A61Q15/00

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

• A61Q19/10

  Washing or bathing preparations · CPC title

• A61K2800/592

  Mixtures of compounds complementing their respective functions · CPC title

• A01N55/02

  containing metal atoms · CPC title

• A61K8/20

  Halogens; Compounds thereof · CPC title