| abstract |
PROCEDURE FOR THE PREPARATION OF COMPLEXES OF FATTY-AMPHOTERIC ACIDS WITH LOW EYE IRRITATION, OF GENERAL FORMULA (I), IN WHICH R IS ALKYL OR SUBSTITUTED ALKYL; R IS ALKYL OF 8 TO 18 CARBON ATOMS; AND A AND A ARE THE SAME OR DIFFERENT AND ARE SELECTED FROM REMAINS OF ANIONIC SALTS. IT CONSISTS IN SUBJECTING A CARBOXYLIC ACID IN AMMONIUM FORM TO A COMPLEXATION REACTION, OF GENERAL FORMULA: R -CCO>-, WHERE R HAS THE MEANING ALREADY INDICATED, WITH AN AMPHOTEROUS IN CATIONIC FORM OF FORMULA (II), IN WHICH R , AYA HAVE THE MEANINGS ALREADY INDICATED, IN AN AQUEOUS MEDIUM AND SO THAT THE PH OF THE RESULTING COMPLEX IS BETWEEN 6.5 AND 8.5. FOR APPLICATION IN THE PREPARATION OF DETERGENT COMPOSITIONS. |