Method of insolubilizing the surface of carbohydrate derivative bodies

Claim 1

THE METHOD OF RENDERING ISOLUBLE IN ORGANIC SOLVENTS THE SURFACE OF A SHAPED BODY WHEREIN SAID SURFACE COMPRISES ESSENTIALLY A CATALYST-FREE ORGANIC SOLVENT-SOLUBLE CARBOHYDRATE DERIVATIVE OF A CARBOHYDRATE OF THE GROUP CONSISTING OF CELCULOSE AND STARCH HAVING SUBSTITUTED ANHYDROGLUCOSE REPEATING UNITS IN WHICH SUBSTITUENTS SELECTED FROM THE GROUP CONSISTING OF ETHERS AND ESTERS AND HAVING ETHYLENIC TYPE UNSATURATED FUNCTIONAL GROUPS DIMERIZABLE BY PEROXYGEN COMPOUNDS ARE PRESENT AND THE DEGREE OF SUBSTITUTION OF SAID SUBSTITUENTS IS IN THE RANGE OF ABOUT 0.06 TO ABOUT 2 AND IS SUFFICIENT TO EFFECT INSOLUBILIZATION BY DIMERIZATION THEREOF, WHICH COMPRISES HEATING SAID SURFACE AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 40* C. TO ABOUT 150* C. IN CONTACT WITH AN AQUEOUS SWELLING MEDIUM CAPABLE OF SWELLING BUT NOT DISSOLVING SAID DERIVATIVE SELECTED FROM THE GROUP CONSISTING OF WATER AND WATER CONTAINING UP TO ABOUT 70% OF A WATER-MISCIBLE VOLATILE ORGANIC SOLVENT, CONTAINING DISSOLVED THEREIN IN SMALL AMOUNT WITHIN THE RANGE OF ABOUT 0.005% TO ABOUT 5% BASED ON THE WEIGHT OF THE SWELLING MEDIUM OF A PEROXYGEN COMPOUND CAPABLE OF CATALYZING POLYMERIZATION REACTIONS IN SAID TEMPERATURE RANGE, UNTIL SAID SURFACE IS RENDERED INSOLUBLE IN SAID ORGANIC SOLVENTS.

Claim 2

THE METHOD OF RENDERING ISOLUBLE IN ORGANIC SOLVENTS THE SURFACE OF A SHAPED BODY WHEREIN SAID SURFACE COMPRISES ESSENTIALLY A CATALYST-FREE ORGANIC SOLVENT-SOLUBLE CARBOHYDRATE DERIVATIVE OF A CARBOHYDRATE OF THE GROUP CONSISTING OF CELCULOSE AND STARCH HAVING SUBSTITUTED ANHYDROGLUCOSE REPEATING UNITS IN WHICH SUBSTITUENTS SELECTED FROM THE GROUP CONSISTING OF ETHERS AND ESTERS AND HAVING ETHYLENIC TYPE UNSATURATED FUNCTIONAL GROUPS DIMERIZABLE BY PEROXYGEN COMPOUNDS ARE PRESENT AND THE DEGREE OF SUBSTITUTION OF SAID SUBSTITUENTS IS IN THE RANGE OF ABOUT 0.06 TO ABOUT 2 AND IS SUFFICIENT TO EFFECT INSOLUBILIZATION BY DIMERIZATION THEREOF, WHICH COMPRISES HEATING SAID SURFACE AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 40* C. TO ABOUT 150* C. IN CONTACT WITH AN AQUEOUS SWELLING MEDIUM CAPABLE OF SWELLING BUT NOT DISSOLVING SAID DERIVATIVE SELECTED FROM THE GROUP CONSISTING OF WATER AND WATER CONTAINING UP TO ABOUT 70% OF A WATER-MISCIBLE VOLATILE ORGANIC SOLVENT, CONTAINING DISSOLVED THEREIN IN SMALL AMOUNT WITHIN THE RANGE OF ABOUT 0.005% TO ABOUT 5% BASED ON THE WEIGHT OF THE SWELLING MEDIUM OF A PEROXYGEN COMPOUND CAPABLE OF CATALYZING POLYMERIZATION REACTIONS IN SAID TEMPERATURE RANGE, UNTIL SAID SURFACE IS RENDERED INSOLUBLE IN SAID ORGANIC SOLVENTS.