| abstract |
PROCESS FOR THE PREPARATION OF NON-IONIC POLYGLYCEROLS SURFACE AGENTS, SOLUBLE OR DISPERSIBLE IN WATER. THIS PROCESS IS CHARACTERIZED BY THE POLYADDITION WITH A HYDROXYL COMPOUND (POLY), GLYCEROL CHLORHYDRIN AND A STRONG BASE AND PREFERREDLY SODIUM HYDROXIDE OR POTASSIUM IN AQUEOUS SOLUTION. THIS PROCESS HAS THE ADVANTAGE OF REPLACING GLYCIDOL, USUALLY USED, BY THE CHLORHYDRIN OF GLYCEROL, LESS EXPENSIVE, EASIER TO STORE THAN GLYCIDOL AND ALSO AVOIDING THE "FLASH" DISTILLATION OF A VOLATIL INFLAMABLE SOLVENT. |