Patent ID: 8246697

Claim:
A mixture of amides of the following formula (I) wherein R 1 represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms; R 2 and R 3 represent independently, a hydrogen atom or a linear or branched alkyl group having 1 to 5 carbon atoms which is optionally hydroxylated, provided that R 2 and R 3 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 C 6 -C 24 alkyl or alkenyl group having an even number of carbon atoms and at least a 95 wt. % of linearity; and amides (b) of formula (I) wherein R represents a C 5 -C 23 alkyl or alkenyl group having an odd or odd and even number of carbon atoms and a 35-85 wt. % of linearity.