PROCESS FOR OBTAINING HYDROSOLUBLE ANIONIC CELLULOSIC ETHERS AND CELLULOSIC ETHERS OBTAINED BY CARRYING OUT SAID METHOD

摘要

P WATER-SOLUBLE ANIONIC CELLULOSE ETHERS ARE TREATED WITH A MIXTURE OF GLYOXAL AND SODIUM BORATE (PREFERABLY BORAX) BY CONTACTING AN ORGANIC CELLULOSIC ETHER SLUDGE WITH AQUEOUS SOLUTION OF GLYOXAL AND BORATE DE SODIUM, RECOVERY OF THE PRODUCT OBTAINED AND DRYING THEREOF. / P P THE WATER-SOLUBLE ANIONIC CELLULOSIC ETHERS THUS OBTAINED HAVE AN IMPROVED DISPERSION CAPABILITY. / P