Process for producing polysulfuric acid esters of polysaccharides

Claim 1

6. THE PROCESS OF PRODUCING AN ALKALI SALT OF A POLYSULFURIC ACID ESTER OF A POLYSACCHARIDE CONSISTING OF POLYGLUCOSE UNITS HAVING PREDOMINANTLY ALPHA 1,4 AND ALPHA 1,6 LINKAGE COMPRISING: SULFATING AT A TEMPERATURE BELOW ABOUT 5*C. FOR NOT MORE THAN ABOUT 6 HOURS A POLYSACCHARIDE SELECTED FROM THE CLASS CONSISTING OF CORN SYRUP SOLIDS AND CORN STARCH DEXTRIN CONTAINING AN AVERAGE OF BETWEEN ABOUT 1 AND 20 GLUCOSE UNITS PER MOLECULE WITH CHLORISULFONIC ACID IN AN AMOUNT OF AT LEAST ABOUT 4 MOLES AND NOT MORE THAN ABOUT 6.6 MOLES PER GLUCOSE UNIT OF SAID POLYSACCHARIDE IN THE PRESENCE OF A PYRIDINE BASE UNDDE SUBSTANTIALLY ANHYDROUS CONDITIONS, FORMING A WATER-SOLUBLE NON-TOXIC ALKALI SALT OF SAID SULFATED POLYSACCHARIDE, PRECIPITATING FROM SOLUTION A FRACTION OF SAID ALKALI SALT CONTAINING AN AVERAGE OF BETWEEN ABOUT 5 AND 15 GLUCOSE UNITS PER MOLECULE AND BETWEEN ABOUT 1.5 AND 3 SULFATE GROUPS PER GLUCOSE UNIT.