- COSMETIC TREATMENT METHOD COMPRISING THE APPLICATION OF A COATING BASED ON AN AEROGEL COMPOSITION OF LOW BULK DENSITY
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The present invention relates to a cosmetic treatment method comprising the formation of a coating on keratin fibres characterized in that it comprises: 1) the preparation of an aerogel precursor composition comprising:—at least one organic solvent chosen from acetone, C1-C4 alcohols, C1-C6 alkanes, C1-C4 ethers, which may or may not be perfluorinated, and mixtures thereof and at least one precursor compound that contains:—at least one atom chosen from silicon, titanium, aluminium and zirconium,—at least one hydroxyl or alkoxy function directly attached to the atom chosen from silicon, titanium, aluminium and zirconium by an oxygen atom, and,—optionally an organic group directly attached to the atom chosen from silicon, titanium, aluminium and zirconium by a carbon atom, 2) the removal of the solvent or solvents resulting in the formation of an aerogel composition having a bulk density less than or equal to 0.35 g/cm3, 3) the application to the keratin fibres of the aerogel composition resulting from step 2) or of the aerogel precursor composition resulting from step 1). Advantageously, the molar ratio between the precursor compounds and the solvent is at most 1/20.
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Paragraph 0071
(2014/02/15)
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- PROCESS FOR PREPARING ALKYLAMINOALKYLALKOXYSILANES
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A process for preparing an alkylaminoalkylalkoxysilane of formula (I) R—(NR′)—Y—Si(R1)n(OR2)3-n (I) in which R is a linear, branched or cyclic alkyl group having 1 to 12 carbon atoms, R′ is a hydrogen (H) or is a linear, branched or cyclic alkyl group having 1 to 12 carbon atoms, Y is a bivalent alkyl group from the group of —CH2—, —(CH2)2—, —(CH2)3—, —(CH2)(CH(CH3))(CH2)— and —(CH2)4—, R1 and R2 groups are the same or different and are each a linear or branched alkyl group having 1 to 4 carbon atoms, and n is 0 or 1 or 2, by reacting an alkylamine, used in excess, with a haloalkylalkoxysilane, distilling off excess free alkylamine, treating the remaining product mixture with the alkylaminoalkylalkoxysilane and working up.
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Page/Page column 4-5
(2011/06/10)
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- METHOD FOR THE AQUEOUS TREATMENT OF AN AMINO-FUNCTIONAL ORGANOSILANE CONTAINING AMMONIUM HALIDES AND/OR ORGANIC AMINE HYDROHALIDES
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The invention relates to a method for the treatment of an amino functional organosilane containing ammonium halides and/or organic amine hydrohalides, wherein at least one non-polar organic solvent is optionally added to the amino functional organosilane containing the ammonium halides and/or organic amine hydrohalides, an aqueous lye is added. The mixture is reacted and subsequently the aqueous phase is separated from the organic phase, the solvent contained in the organic phase is removed from said phase and the residual organic phase is recovered.
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Page/Page column 5
(2011/04/14)
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- Phosphazenium chloride catalysts immobilized on SBA-15 mesoporous material and silica gel: New exceptionally active catalysts for the chlorination of organic acids
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Novel reusable phosphazenium chloride catalysts immobilized on SBA-15 mesoporous material and silica gel show exceptional activities and selectivities even in the continuous chlorination reaction of organic acids with thionyl chloride or phosgene.
- Kim, Keun-Sik,Kim, Jong-Ho,Seo, Gon
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p. 372 - 373
(2007/10/03)
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- AZASILANES AND METHODS FOR MAKING AND USING THE SAME
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A class of volatile cyclic and acyclic azasilanes is provided as well as methods for their preparation which comprise heating aminoalkoxysilanes in the presence of an ammonium salt, sulfuric acid, or phosphonium salt. The cyclic azasilanes may be used for the treatment of inorganic surfaces, particularly nanoparticles, by a ring-opening reaction when non-hydrolytic deposition methods are required.
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Page/Page column 12-13
(2008/06/13)
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- Reaction of Epoxides with Chlorocarbonylated Compounds Catalyzed by Hexaalkylguanidinium Chloride
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Silica-supported guanidinium chloride (PBGSiCl) exhibits efficient chemo- and regiospecific catalytic activity in the ring opening of epoxides with various electrophiles.This reaction allows the preparation of β-chloro esters and β-chloro chloroformates in high yield under neutral conditions which offer product stability and ease of product isolation.
- Gros, P.,Perchec, P. Le,Senet, J. P.
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p. 4925 - 4930
(2007/10/02)
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