Abstract: The present invention relates to a process for obtaining amidated fatty acids or derivatives thereof good in color even after longer storage with low concentrations of undesired by-products. The present invention also relates to use of amidated fatty acids or derivatives thereof obtained by the process in the cosmetic applications. Further, the present invention also relates to use of amidated fatty acids or derivatives thereof obtained by the process in the industrial applications.

Abstract: Cleansing compositions include a mixture of alkyl ether carboxylic acids and/or salts thereof, each having a structure according to formula (1): R1—O—(CH2CH2O)n—CH2—COOM??(1) where R1 is an alkyl group having 4 to 22 carbon atoms, n is a number of from 0 to 20, and M is a hydrogen atom, alkali metal, alkaline earth metal, ammonium, or organic ammonium. The mixture includes alkyl ether carboxylic acids and/or salts having at least two different alkyl groups R1, an average carbon number of alkyl groups R1 of alkyl ether carboxylic acids and/or salts in the mixture is from 10.8 to 12.

Abstract: A mixture of amides of the following formula (I) is disclosed wherein —R1 represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms; —R2 and R3 represent independently, a hydrogen atom or a linear or branched alkyl group having 1 to 5 carbon atoms which is optionally hydroxylated, provided that R2 and R3 are not a hydrogen atom at the same time; -n has a value in the range of 0.2 to lower than 3; characterized in that said mixture comprises: -amides (a) of formula (I) wherein R represents a C6-C24 alkyl or alkenyl group having even number of carbon atoms and at least a 95 wt. % of linearity; and -amides (b) of formula (I) wherein R represents a C5-C23 alkyl or alkenyl group having odd or odd and even number of carbon atoms and a 35-85 wt. % of linearity; and cosmetic compositions comprising said mixture, particularly dying compositions.

Abstract: A mixture of amides of the following formula (I) is disclosed wherein R1 represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms; R2 and R3 represent independently, a hydrogen atom or a linear or branched alkyl group having 1 to 5 carbon atoms which is optionally hydroxylated, provided that R2 and R3 are not a hydrogen atom at the same time; n has a value in the range of 0.2 to lower than 3; characterized in that said mixture comprises: amides (a) of formula (I) wherein R represents a C6-C24 alkyl or alkenyl group having even number of carbon atoms and at least a 95 wt. % of linearity; and amides (b) of formula (I) wherein R represents a C5-C23 alkyl or alkenyl group having odd or odd and even number of carbon atoms and a 35-85 wt. % of linearity; and cosmetic compositions comprising said mixture, particularly dying compositions.