C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
167/249, 167/300
C07C 271/22 (2006.01) A61K 31/27 (2006.01) C07C 275/06 (2006.01) C07C 275/16 (2006.01)
Patent
CA 2020923
General formula urethane derivatives (see Figure 1) in which R represents a CH2OH, -CHOH-CH3 or (CH2)3-NH-CO-NHY grouping, where Y represents -H or COOR', R' representing a linear or branched alkyl group, possibly non-saturated, with 8 to 24 carbon atoms, or a monocyclic cycloalkyl group replaced by an alkyl, with a total number of carbon atoms of 10 or more, as well as the salts of the formula I compounds, and mixtures of formula I compounds and/or their salts; their preparation and application particularly as moisturizing agents in cosmetic or pharmaceutical mixtures used to treat dry skin.
Dérivés d'uréthanne de formule générale : (voir fig. I) dans laquelle R représente un groupement -CH2OH, -CHOH-CH3 ou -(CH2)3-NH-CO-NHY, Y représentant -H ou COOR', R' représente un groupement alkyle linéaire ou ramifié, éventuellement insaturé, ayant de 8 à 24 atomes de carbone, ou un groupement cycloalkyle monocyclique substitué par un alkyle, dont le nombre total des atomes de carbone est supérieur ou égal à 10, ainsi que les sels des composés de formule I, et les mélanges des composés de formule I et/ou de leurs sels ; leur préparation et leur application notamment comme agents hydratants dans des compositions cosmétiques ou pharmaceutiques destinées au traitement des peaux sèches.
de Rigal Jean
Philippe Michel
Sebag Henri
Vanlerberghe Guy
L'oreal
Robic
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