Patent Picks—Natural Cationic Emulsifiers, Repeat Sequence Proteins, Amides for Color Uniformity and More
By: Rachel L. Grabenhofer
Posted: November 13, 2012
Chosen biweekly for their relevance to personal care, Patent Picks are taken from publicly available sources. This edition features patents related to hair care, including cleansing, conditioning and color protection.
Surfactant composition
US Patent 8309510
Publication date: Nov. 13, 2012
Assignee: Kao Corp.
According to this patent, though fatty acid monoethanolamides and fatty acid diglycol amides are superior in thickening effect, they have drawbacks including a high melting point and are therefore deteriorated in solubility when formulated into detergents or cosmetics. In view of this, the inventors of the present invention started to search an anionic surfactant composition having a high thickening effect; that is, an anionic surfactant producing a high thickening effect even in the case where the concentration of the inorganic salt is low.
The inventors believe that if a surfactant composition having a high thickening effect is obtained in the development of an alcohol having both the advantageous effects given by an alcohol derived from petrochemical raw materials and an alcohol derived from oil and fats, respectively, and also in the development of various surfactants derived from these alcohols, applications for raw materials of various products including surfactant compositions derived from the alcohol can be expanded.
Detergent cosmetic compositions comprising four surfactants, a cationic polymer and a silicone, and use thereof
WIPO Patent Application WO/2012/149617
Publication date: Nov. 8, 2012
Assignee: L'Oreal S.A. and D. Alves
Exploring the Frontiers of Research in Shampoo and Conditioner Science
Practical Modern Hair Science covers the pertinent issues related to surfactants and provides a detailed description of tests to substantiate claims. A sample of other areas covered in this book: Measuring color, color formulation, the effects of aging on hair, medical conditions affecting hair, and advances in hair styling written by an impressive list of hair science experts.
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