By Sarah E. Morgan, Kathleen O. Havelka, Robert Y. Lochhead
This symposium sequence publication will take on one of many quickest becoming markets within the chemical within the US and all over the world: own care. via advances in nanotechnology there were major possibilities for brand new advancements in fabrics and supply mechanisms for cosmetics and private care items. This booklet will handle the commercially vital elements and supply applied sciences utilized in beauty nanotechnology: polymers and colloids. due to the fact greater than 1/2 the participants are business researchers offering a viewpoint on real-life functions of non-public care elements, the assurance of this subject won't in basic terms be entire, yet completely adopt a lot wanted issues relating to learn and improvement themes in beauty nanotechnology.
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Additional info for Cosmetic Nanotechnology. Polymers and Colloids in Cosmetics
100 2-in-l Cleansing and Moisturizing: The ideal situation to deliver moisturization to the skin is in the shower or bath. However, deposition is challenging in these situations when there is a tendency for the moisturizer to be rinsed away form the skin. There have been several attempts to meet the challenge. For example: • high internal phase emulsions break easily on the skin and, i f they are substantially free of surfactant, satisfactory deposition of moisturizer can be achieved delivery of deodorants from spheroidal networks comprising wetting agents and emulsifiers such as stearic acid, cetyl alcohol, glyceryl monostearate and stearyl alcohol .
Adiwidjaja, H . ; Winnik, M . A . ; Langmuir, 1993, 9, 881-883. 51. ; Chu, Br; "Nanofabrication in polymer matrices", Prog. , 28, 5, (2003). 52. ; Wooley, K . ; J. Polymer Sci. Part A: Polymer Chemistry, 2000, 38, 4805. 53. ; 'Fluorescence Studies of amphiphilic poly methacrylic acid)- block-polystyrene -block -poly(methacrylic acid) micelles', Macromolecules (1991), 24, 6300. 54. Cadena, N . ; Destarac, M . ; Wilczewska, A . ; United States Patent Application 20050180937; August 18, 2005; Rhodia Inc.
Cationic galactomannans, such as Guar Hydroxypropyltrimonium chloride are commonly used as thickeners deposition aids in skin-care compositions. Most wipes are ftagranced, but there is a fraction of consumers who prefer wipes with a barely perceptible hint of fragrance or no perceivable fragrance at all. It is interesting in this context that Hercules has recently reported the development of a cationic guar with reduced odor. The cationic functionality of these polymers is conferred by quaternizing with trimethylamine and trace residuals of this amine can cause the product to have a 'fishy' odor, which may be detectable in products formulated at neutral or basic pH values.