By Sarah E. Morgan, Kathleen O. Havelka, Robert Y. Lochhead

This symposium sequence booklet will take on one of many quickest starting to be 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 ebook will handle the commercially vital components and supply applied sciences utilized in beauty nanotechnology: polymers and colloids. given that greater than 1/2 the participants are business researchers delivering a point of view on real-life purposes of private care elements, the insurance of this subject won't basically be finished, yet completely adopt a lot wanted issues relating to learn and improvement issues in beauty nanotechnology.

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References 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. ; M c Ewen , G . N : International Cosmetic Ingredient Dictionary and Handbook, Eleventh Edition, 2006, The Cosmetic, Toiletry and Fragrance Association. ; US Pat Application 2004/00338246, Feb 19, 2004. ; US Pat 6,800,276, (Oct 5, 2004), assigned to B A S F Matyjaszewski, K . ; PCT Int. Appl. WO 9718247 A1, (1997), Matyjasezwski, K : , J. ; Macromolecules, 1997, 30 4238. Nesvadba, P. ; ; Stauffer, W. ; 1999, P C T Int. A p p l . W O 9903894 A1.

This is a significant advance for color cosmetics and sunscreens that depend upon film-formers for enhancement of substantivity, waterproofing and transfer-free characteristics. The film formes specified in this invention are standard polymers that have been included in cosmetic compositions for a considerable time. Examples are polyvinylpyrrolidone (PVP), or hydrophobic polyvinylpyrrolidone copolymers (PVP hexadecene copolymer and P V P eicosene copolymer), sodium polystyrenesulphonate, or polyisobutene,.

40 manufacture and they allow the formulation of products that exhibit desired attributes in the storage container and a tunable change of properties when added to the substrate. Thermally-responsive polymers: Thermally reversible viscosifying polymers exhibit a dramatic increase in solution viscosity when they are heated above a threshold temperature, thermal gelling was observed for aqueous compositions containing polymers having a poly (2-acrylamido-2methylpropanesulphonic acid) backbone and grafted chains of polyoxyethylene and polyoxypropylene or polyoxybutylene.

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Cosmetic Nanotechnology. Polymers and Colloids in Cosmetics by Sarah E. Morgan, Kathleen O. Havelka, Robert Y. Lochhead
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