ION EXCHANGE INORGANIC FILMS MADE UP OF LAYERED STRUCTURE INSOLUBLE ACID SALTS OF TETRAVALENT METALS AND/OR THEIR DERIVATIVES AND PROCESS FOR THE PREPARATION OF THE SAME

摘要

Ion exchange inorganic films made up of alpha-type or gamma-type layered structure insoluble acid salts of tetravalent metals or their salt forms, or their intercalated forms or their organic derivatives containing polar groups. A process for the preparation of said films.