摘要:
A process for preparing a composition (C1) represented by the formula (I): HO—CH2—(CHOH)n—CH2—O-(G)x-H, in which G represents the remainder of a reducing sugar, n is an integer equal to 2, 3 or 4 and x, which indicates the mean degree of polymerization of the remainder G, represents a decimal number greater than 1 and less than or equal to 5, characterized in that the process includes at least one step a) of reacting a polyol of formula (A1): HO—CH2—(CHOH)n—CH2—OH, in which n is an integer equal to 2, 3 or 4, with a reducing sugar of formula (II): HO-G-H, in which G represents the remainder of a reducing sugar, in the presence of an acid catalyst (Ca), and in that the acid catalyst (Ca) is chosen from phosphorous acid, phosphoric acid and polyphosphoric acid.
摘要:
A composition represented by the formula (I): R-0-(G)p-H, wherein R is the n-heptyl radical, G is the residue of a reducing sugar and p is a decimal number no lower than 1.05 and no higher than 5. The composition is a mixture of compounds represented by the formulas R-0-(G)1-H (I1), R-0-(G)2-H (I2), R—O-(G)3-H (I3), R—O-(G)4-H (I4), and R-0-(G)5-H (I5) in the respective molar ratios a1, a2, a3, a4 and a5, such that each ratio a1, a2, a3, a4 and a5 is between zero and one inclusive and that the sum of a1+a2+a3+a4+a5, is equal to one. Also, the method of solubilizing, in an aqueous solution, a hydrophobic perfume substance (A) or a mixture of hydrophobic perfume substances (A) with this composition, and a solubilising composition for hydrophobic perfumes. Further, a method for perfuming surfaces.
摘要:
A composition represented by formula (I): R—O-(G)p-H (I) in which R represents a radical including 6 to 8 carbon atoms, G represents the residue of a reducing sugar and p represents a decimal number greater than or equal to 1.05 and less than or equal to 5, and the composition is a mixture of compounds represented by formulae (I1), (I2), (I3), (I4) and (I5): R—O-(G)1-H(I1) R—O-(G)2-H(I2) R—O-(G)3-H(I3) R—O-(G)4-H(I4) R—O-(G)5-H(I5), in respective molar proportions a1, a2, a3, a4 and a5, such that: a1+a2+a3+a4+a5=1. The use of the composition as a solubilising agent in an aqueous composition of at least one compound (A) chosen from α-tocopherol, β-tocopherol, γ-tocopherol, δ-tocopherol, α-tocopherol acetate, β-tocopherol acetate, γ-tocopherol acetate, δ-tocopherol acetate, α-tocotrienol, β-tocotrienol, γ-tocotrienol and δ-tocotrienol. Also, a composition (C2) and its use in methods for preventing the unattractive effects of ageing, for cleaning the skin and hair, and for therapeutic treatment.
摘要:
An oil-in-water emulsion includes, for 100 wt % thereof: a) 0.1 to 10 wt % of an emulsifying system including, for 100 wt % thereof: (i) 5 to 95 wt % of the mixture of the reaction products of a reducing sugar and 1,12-octadecanediol essentially consisting of hydroxyl-octadecyl polyglycosides of formula (I): HO—R—O-(G)n-H (I) and of polyglycosyl octadecyl polyglycosides of formula (II): H-(G)m-O—R—O-(G)p-H (II), where, in formulas (I) and (II), G is the remainder of the reducing sugar and R is the divalent radical octadecane-diyl-1,12, and where n, m and p, identical or different, each are, independently of each other, a decimal number between 1 and 5; (ii) 95 to 5 wt % of 1,12-octadecanediol; b) 0.01 to 5 wt % of at least one thickening and/or gelling agent; c) 10 to 50 wt % of an oil phase; and d) 89.89 to 35 wt % of an aqueous phase.