Enhancing the deposition of benefit agents from a surfactant system onto hair and skin
Publication Date: 2004-Dec-14
The IP.com Prior Art Database
Deposition of benefit agents from a surfactant system onto hair and skin often provides consumer perceivable performance benefits such as conditioning, moisturization, and protection from damage. One potential goal of a formulator is to enhance the deposition of these benefit agents in order to maximize the benefit while minimizing cost. This invention relates to liquid surfactant systems containing one or more benefit agents whose deposition will be enhanced by the addition of a deposition aid polymer. This technology would be useful for many personal care applications including shampoos, body wash, facial wash, liquid soaps, etc.
Today’s consumers are expecting much more than ever before from their personal care cleansing products. These products need to not only clean their hair or skin, but these products must also now deliver additional consumer perceivable benefits, such as conditioning or moisturization. It is already well know that benefit agents can be added to such formulations to deliver these consumer benefits. However, a considerable amount of these benefit agents are not delivered to the hair or skin and are subsequently washed away.
This paper describes a way to enhance the deposition of these benefit agents onto the skin and hair by incorporating a deposition aid into the personal care formulations. These deposition aids can increase the level of benefit agent deposition and thereby improving the consumer benefit. In addition, it is now possible to reduce the use levels of these benefit agents in the formulation and achieve acceptable performance; thereby potentially reducing formulation costs.
According to this invention, the deposition aid polymers that can enhance the deposition of benefit agents include CELQUAT® SC-240C polymer, CELQUAT SC-230M polymer, CELQUAT L-200 polymer, CELQUAT H-100 polymer, CELQUAT LS-50 polymer, STRUCTURE® Plus polymer, STRUCTURE 3001 polymer, STRUCTURE 2001 polymer, AMAZE™XT gum, STRUCTURE XL polymer, STRUCTURE ZEA polymer, FLEXAN® II polymer, DynamX® polymer, DERMACRYL® AQF polymer, and DERMACRYL 79 polymer.
Preferably, the personal care composition is a surfactant based formulation where the surfactants can be nonionic, amphoteric, cationic and/or anionic surfactants in any combination in the range of 1% to 50%. More preferably, these surfactants will be found in the range of 10% to 25%.
The present invention also comprises of an amount of a benefit agent where the benefit agents include, but are not limited to, hydrophobic materials such as mineral oil, sunflower oil, petrolatum,, dimethicone, dimethiconol; humectants, such as glycerin, hydroxyethyl urea; cationic conditioning agents; such as Polyquaternium-10 and Cationic Guar Gum; vitamins; fragrances; botanical extracts and UV absorbers. These benefit agents will generally comprise 0.01% to 35% of the composition, preferably 3% to 25%.
In addition, the compositions of the inventions may include optional ingredients including, but not limited to: Fatty acids and alcohols (stearyl alcohol, cetyl alcohol, behenyl alcohol, stearic acid, palmitic acid, lauric acid, etc.); additional thickeners such as hydroxyethylcellulose, carbomers, sodium chloride; chelating agents such as EDTA; preservatives such as DMDM Hydantoin; and coloring agents, opacifiers and pearlizers such as TiO2, EGDS (ethylene glycol distearate); all of which are enhance the overall performance and appearance of the product.
Personal care compositions include, but are not limited to shampoos, bar soaps, body wash, facial wash, liquid soaps and various liquid cleansers.