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Anhydrous antiperspirant cream compositions having improved perfume longevity

A composition and anti-perspiration technology, which can be applied in the direction of medical preparations containing active ingredients, household utensils, and toiletry containers, etc., and can solve the problems of reducing the fragrance, and the persistence of fragrance fragrance is not enough to help hide or mask the odor of sweat

Inactive Publication Date: 2004-10-20
THE PROCTER & GAMBLE COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After application of the product and during use of the product, the rate at which the fragrance diffuses and emits fragrance in the surrounding atmosphere is generally reduced, with the result that little or no consumer perceivable fragrance is present after several hours, and sometimes these Fragrance does not have long-lasting fragrance to help hide or mask sweat odor

Method used

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  • Anhydrous antiperspirant cream compositions having improved perfume longevity
  • Anhydrous antiperspirant cream compositions having improved perfume longevity

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0109] Methods of preparing anhydrous antiperspirant cream compositions of the present invention include those methods known in the art for formulating compositions containing small particles of suspending or thickening agents. These methods include the use of nucleating agents, formulation with selected carriers or suspending or thickening agents or carrier / suspension or thickening agent mixtures, control of formulation and processing temperatures, and the like.

[0110] A preferred method of preparing the composition comprises a formulation step followed by a controlled curing step. The preparation step comprises 1) mixing the following ingredients: about 0.5% to about 35% by weight of particulate antiperspirant actives; about 0.1% to about 20% by weight of suspending or thickening agents; about 10% to about 90% by weight of Anhydrous liquid carrier, wherein the solubility parameter of the anhydrous liquid carrier is about 3 (cal / cm 3 ) 0.5 to about 13 (cal / cm 3 ) 0.5 . ...

Embodiment I-VI

[0122] The following Examples I-VI describe the perfume / cyclodextrin complexes of the present invention. Examples I-V were prepared by complexing the fragrance with β-cyclodextrin. Example VI was prepared by complexing the fragrance with gamma-cyclodextrin. The complex was prepared by mixing cyclodextrin and water in a round bottom flask and heating the mixture to about 65°C. Continue to stir while slowly adding the spices, at which point a slurry is usually observed. Heating of the mixture was then discontinued and stirring continued until the mixture cooled to ambient temperature. The resulting slurry at this point had the appearance of a milky precipitate, indicative of complex formation. The complex is then dried in a convection oven at a temperature of about 100°C or less. The complex may be washed to remove any uncomplexed perfume prior to drying. The resulting complexes are incorporated into the anhydrous antiperspirant cream compositions of the present invention t...

Embodiment VII-XII

[0126] The following Examples VII-XII describe anhydrous antiperspirant cream compositions of the present invention. Each of the exemplified compositions was prepared by combining all of the enumerated ingredients except the fragrance / cyclodextrin complex and optional free fragrance and then heating the mixture to 100 °C to form a hot liquid. The fragrance / cyclodextrin complex and optional free fragrance are then added to the hot liquid. The heated liquid is stirred and cooled until the solidification point will be reached, at this temperature, the cooled liquid composition is filled into a tank or a paste applicator, cooled without stirring or other shearing force, and applied in the corresponding A hard paste forms in the package. Each packaged composition was then provided with the above-described perforated cap through which the composition was extruded and topically applied to the skin.

[0127] components

Example

VII

Example

VIII

Exam...

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Abstract

Disclosed are anhydrous antiperspirant cream compositions that have improved fragrance longevity. These compositions have a penetration force value of from about 75 gram-force to about 500 gram-force and comprise (a) antiperspirant active, and (b) a perfume / cyclodextrin inclusion complex. Also disclosed are packaged anhydrous antiperspirant cream compositions which comprise (a) antiperspirant active; (b) a perfume / cyclodextrin inclusion complex; and (c) a dispensing package containing the composition, wherein the dispensing package comprises (i) a container body having an interior chamber and a dispensing end, and (ii) a perforated dome attached to the dispensing end of the container body and having a plurality of openings extending through the thickness of the perforated dome and covering from about 15% to about 80% of the total surface area of the perforated dome.

Description

field of invention [0001] The present invention relates to anhydrous antiperspirant cream compositions having improved perfume longevity. In particular, the present invention relates to anhydrous antiperspirant cream compositions containing perfume encapsulated by cyclodextrins to provide sustained release of perfume. Background of the invention [0002] There are many types of topical antiperspirant products commercially available or known in the antiperspirant art. Most products are formulated as roll-on liquids, creams, lotions, gels, gel-solids or other solid sticks and include antiperspirant ingredients added to a suitable liquid carrier Active substances and suspending or thickening agents. These products are designed to provide effective antiperspirant and odor control benefits, and to be aesthetically acceptable when or after application to the armpits or other skin areas. The vast majority of these antiperspirant products contain fragr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A45D40/00A61K8/00A61K8/31A61K8/34A61K8/37A61K8/60A61K8/73A61K8/89A61K8/891A61K8/92A61K31/74A61L9/01A61Q13/00A61Q15/00
CPCA61K2800/31A61K8/738A61Q15/00A61K2800/56A61Q13/00
Inventor 丹尼斯·R·培根朱迪思·A·霍林斯黑德乔治·P·里齐查尔斯·R·特伦布莱蒂莫西·J·韦尔奇
Owner THE PROCTER & GAMBLE COMPANY
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