Anion exchange resins prepared in the presence of plasticizer and polymer

Claim 1

A SOLID UNFRACTURED ANION EXCHANGE RESIN SHEET COMPRISING A THREE DIMENSIONALLY CROSS-LINKED SHEET FORM POLYMER MATRIX BONDED TO ANION EXCHANGE GROUPS, SAID SHEET FORM MATRIX BEING SLICED FROM A BLOCK FORM MATRIX INTO SHEET FORM MATRIX, AND SAID BLOCK FORM MATRIX BEING A POLYMERIZATION PRODUCT OF A SOLUTION MIXTURE OF STYRENE, POLYSTYRENE, DIVINYLBENZENE AND DIALKYLPHTHALATE, AND SAID ANION EXCHANGE GROUPS BEING BONDED TO SAID MATRIX BY CHLOROMETHYLATING SAID MATRIX SO THAT THERE IS AN AVERAGE OF FROM 0.2 TO 1.2 CHLOROMETHYL GROUPS PER AROMATIC NUCLEUS, AND THEN AMINATING SAID CHLOROMETHYLATED MATRIX SO THAT THERE EXIST IN THE REACTION MIXTURE AT LEAST ONE MOLE OF AMINE FOR EACH CHLOROMETHYL GROUP IN SAID MATRIX.