| abstract |
PROCEDURE FOR THE POLYMERIZATION OF ACRYLIC MONOMERS IN AQUEOUS SUSPENSION, WHERE AT LEAST ONE COMONOMER HAS A SOLUBILITY IN WATER OF AT LEAST 5 G PER 100 G OF WATER, TO OBTAIN COPOLYMERS CONTAINING THE WATER-SOLUBLE COMONOMER IN UP TO 60% IN PESO IN PESO OF A MONUBER SOLUBLE RADICAL INITIATOR AND A SELECTED POLYMERIC SUSPENSION AGENT FROM THE HOMOPOLYMER OF A FORMULA COMPOUND: WHERE: R {SUB, 1} IS HO CH {SUB, 3}; R {SUB, 2} AND R {SUB, 3}, EQUAL OR DIFFERENT, ARE H OR ALKYLS C {SUB, 1} -C {SUB, 8}, OPTIONALLY BRANCHED WHEN POSSIBLE; M IS AN ALKALINE METAL OR AN ALKALINE EARTH METAL OR AMMONIUM IT IS ALREADY NH OR NCH {SUB, 3}, WHERE THE AQUEOUS PHASE OF POLYMERIZATION IS TOTALLY OR PARTIALLY FORMED BY THE MOTHER WATERS OF AN ACRYLIC MONOMER, MOTHER WATERS CONTAINING AN ORGANIC PHASE FORMED THROUGH THE SUSPENSION AGENT AND THROUGH OTHER PRODUCTS FORMED DURING THE POLYMERIZATION, OPTIONALLY COMPLEMENTED WITH A COMPLEMENTARY AMOUNT OF SUCH SUSPENSION AGENT WITH% OF SUSTAINING AGENT THAT HAS IN SUSTAINING 0.05-5% BY WEIGHT OF THE ABOVE PRODUCTS FORMED DURING POLYMERIZATION. |