PROCESS FOR OBTAINING FILMS AND BLOCKS OF CELLULOSE ACETATE

摘要

Procedure for obtaining cellulose acetate blocks and films, particularly suitable for preparative and rapid analytical electrophoresis, and for immunological techniques, characterized in that it comprises the steps of completely dissolving an initial charge of cellulose acetate, with a degree predetermined acetylation, in a mixture comprising at least one solvent for said cellulose acetate and at least one non-solvent for the same, said solvent or solvents and such being non-solvent or non-solvents for the mentioned cellulose acetate, compatible with water, obtaining a swollen mass, the extension of said mass in the form of a film of predetermined thickness, the substitution in said film of such solvent or solvents and said non-solvent or solvents for water, thus obtaining a final product consisting essentially in an aqueous gel of cellulose acetate, the subsequent cutting and packaging of such gel in est wet. (Machine-translation by Google Translate, not legally binding)