Process for reducing the levels of unreacted amino polyol...

Details Process for reducing the levels of unreacted amino polyol... Process for reducing the levels of unreacted amino polyol...

C - Chemistry, Metallurgy

07

C

C07C 233/18 (2006.01) C07C 231/02 (2006.01) C07C 231/22 (2006.01) C11D 1/52 (2006.01)

Patent

CA 2144311

Polyhydroxy amines reacted with fatty acid esters yield polyhydroxy fatty acid amide surfactants, such as the C1-C17 fatty N-methyl glucamides, which may be contaminated with secondary amines. Such amines are acylated by a reaction with acetic anhydride. The resulting "clean" polyhydroxy fatty acid amide surfactants are preferred for use in the presence of oxidants, especially in the formulation of modern, colorless liquid detergents.

Des amines polyhydroxylées que l'on fait réagir avec des esters d'acide gras donnent des surfactants qui sont des amides d'acide gras polyhydroxylées, comme les N-méthylglucamides d'acide gras en C1-C17, qui peuvent être contaminés par des amines secondaires. Ces amines sont acylées par réaction avec de l'anhydride acétique. Les surfactants d'amides d'acide gras polyhydroxylées « propres » obtenus sont jugés préférables pour utilisation en présence d'oxydants, particulièrement dans la formulation de détergents liquides modernes incolores.

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