Cleansing composition incorporating a biocide, heating agent and thermochromic substance

• US 8,318,654 B2
• Filed: 11/30/2006
• Issued: 11/27/2012
• Est. Priority Date: 11/30/2006
• Status: Active Grant

• Current Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Original Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Inventors: Hoffman, Douglas Robert, Koenig, David William, Wenzel, Scott W., Kieffer, Philip E.
• Primary Examiner(s): Choi, Ling
• Assistant Examiner(s): Nguyen, Thuy-Ai
• Application Number:
  US11/606,630
• Publication Number:
  US 20080132438A1
• Time in Patent Office: 2,189 Days
• Field of Search: 510/349, 510/441, 510/443, 510/186, 510/196, 510/252, 510/297, 510/298
• US Class Current: 510/380
• CPC Class Codes: A01N 2300/00 Combinations or mixtures of active ingredients covered by classes A01N27/00 - A01N65/48 with other active or formulation relevant ingredients, e.g. specific carrier materials or surfactants, covered by classes A01N25/00 - A01N65/48
• CPC Class Codes: A01N 25/34 Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
• CPC Class Codes: A01N 31/02 Acyclic compounds
• CPC Class Codes: A01N 33/12 Quaternary ammonium compounds
• CPC Class Codes: A61K 2800/242 Exothermic; Self-heating; Heating sensation
• CPC Class Codes: A61K 2800/438 Thermochromatic; Photochromic; Phototropic
• CPC Class Codes: A61K 8/0208 Tissues; Wipes; Patches
• CPC Class Codes: A61Q 17/005 Antimicrobial preparations
• CPC Class Codes: C11D 1/62 Quaternary ammonium compounds
• CPC Class Codes: C11D 17/0039 Coated compositions or coated components in the compositions, (micro)capsules
• CPC Class Codes: C11D 17/041 Compositions releasably affixed on a substrate or incorporated into a dispensing means
• CPC Class Codes: C11D 17/049 Cleaning or scouring pads; Wipes
• CPC Class Codes: C11D 3/0052 Gas evolving or heat producing compositions
• CPC Class Codes: C11D 3/046 Salts
• CPC Class Codes: C11D 3/201 linear
• CPC Class Codes: C11D 3/40 Dyes ; Pigments
• CPC Class Codes: C11D 3/48 Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions

Abstract

A cleansing composition is described. The cleansing composition generally contains an antimicrobial agent, a heating agent, and a thermochromic agent. During use, the heating agent heats the composition so that the antimicrobial agent becomes more effective. The thermochromic agent, on the other hand, changes the color of the composition as it is heated in order to indicate to a user that the composition is at a desired temperature. In an alternative embodiment, instead of containing a heating agent, a heating source can be used to heat the composition. The heating source can be, for instance, an electrical resistance heater.

Claims

1. A cleansing composition comprising:

an antimicrobial agent present in an amount of at least 50 percent by weight but not more than 70 percent by weight, wherein the antimicrobial agent selected from a group consisting of an alcohol, an isothiazolone, alkyl dimethyl ammonium chloride, a triazine, 2-thiocyanomethylthio benzothiazol, methylene bis thiocyanate, acrolein, dodecylguanidine hydrochloride, a chlorophenol, gluteraldehyde, a dithiocarbamate, 2-mercatobenzothiazole, para-chloro-meta-xylenol, silver, chlorohexidine, polyhexamthylene biguanide, a n-halamine, triclosan, a phospholipid, an alpha hydroxyl acid, 2,2-dibromo-3-nitrilopropionamide, 2-bromo-2-nitro-1,3-propanediol, farnesol, iodine, bromine, chlorine dioxide, ozone, a botanical oil, a botanical extract, chlorine, sodium hypochlorite, and combinations thereof, and at least 5 percent by weight of a heating agent in an aqueous carrier, the heating agent being configured to activate during use of the cleansing composition causing an increase in temperature of the composition, the cleansing composition further comprising a thermochromic agent, the thermochromic agent being configured to cause a change in color of the cleansing composition during the increase in temperature due to the activation of the heating agent; and

water in an amount greater than 5 percent by weight,

wherein the heating agent increases the temperature of the cleansing composition of from 20°

C. to 25°

C. when activated.

2. A cleansing composition as defined in claim 1, wherein the alcohol comprises ethanol.

3. A cleansing composition as defined in claim 1, wherein the heating agent is an electrolyte salt that undergoes an exothermic reaction when contacted with water.

4. A cleansing composition as defined in claim 3, wherein the electrolyte salt is encapsulated with a material that degrades during use of the cleansing composition.

5. A cleansing composition as defined in claim 1, wherein the heating agent is encapsulated with a material that degrades during use of the cleansing composition.

6. A cleansing composition as defined in claim 5, wherein the material used to encapsulated the heating agent comprises a wax.

7. A cleansing composition as defined in claim 1, wherein the heating agent comprises calcium chloride, magnesium chloride, a zeolite, aluminum chloride, calcium sulfate, magnesium sulfate, sodium carbonate, sodium sulfate, sodium acetate, a metal, slaked lime, quick lime, a glycol, polyvinyl amine, polyalkyleneamine, polyalkyleneimine, a metal oxide, an electrolyte salt or combinations thereof.

8. A cleansing composition as defined in claim 3, wherein the electrolyte salt is magnesium chloride.

9. A cleansing composition as defined in claim 1, wherein the thermochromic agent comprises a leuco dye.

10. A cleansing composition as defined in claim 1, wherein the cleansing composition is a liquid.

11. A cleansing composition as defined in claim 1, wherein the cleansing composition is a solid.

12. A cleansing composition as defined in claim 1, wherein the heating agent is present in the cleansing composition in an amount sufficient to cause the cleansing composition to increase in temperature from 20°

C. to about 40°

C. when activated.

13. A wiper product comprising a substrate containing the cleansing composition defined in claim 1.

14. A wiper product as defined in claim 13, wherein the substrate comprises a nonwoven fibrous sheet material selected from the group consisting of meltblown, coform, air-laid, bonded carded web materials, hydroentangled materials and combinations thereof.

15. A cleansing composition as defined in claim 1, wherein the cleansing composition comprises at least one surfactant.

16. A cleansing composition as defined in claim 1, wherein the thermochromic agent is configured to change color at a temperature of at least about 25°

C.

17. A cleansing composition as defined in claim 1, wherein the thermochromic agent is configured to change color at a temperature of at least about 30°

C.

18. A cleaning composition as defined by claim 1, wherein the heating agent is present in an amount of at least 5 percent but not more than 40 percent by weight.

19. A cleaning composition as defined by claim 1 wherein the heating agent is present in an amount of at least 5 percent but not more than 30 percent by weight.

20. A cleaning composition as defined by claim 1 wherein the heating agent is present in an amount of at least 10 percent but not more than 25 percent by weight.

21. A cleaning composition as defined by claim 1 wherein the cleaning composition includes heat sink particles.

22. A cleaning composition as defined by claim 1 wherein the temperature increase is at least 10 degrees Celsius.

23. A cleaning composition as defined by claim 1 wherein the temperature increase is at least 15 degrees Celsius.

24. A cleaning composition as defined by claim 1 wherein the temperature increase is at least 20 degrees Celsius.