Process for preparing latices of isobutylene polymers

Claim 1

PROCESS FOR PREPARING LATICES OF ISOBUTYLENE POLYMERS WHICH COMPRISES DISSOLVING SAID POLYMERS IN A SOLVENT CHOSEN FROM THE GROUP CONSISTING OF HEXANE, HEPTANE, OCTANE, ISOOCTANE, THE NONANES, THE DECANES, BENZENE, TOLUENE, AROMATIC HYDROCARBON FRACTIONS BOILING BETWEEN 157-177*C., AROMATIC HYDROCARBON FRACTIONS BOILING 190 TO 210*C., MINERAL SPIRITS BOILING 150 TO 220*C., CYCLOHEXANE, CYCLOHEXENE, CARBON DISULFIDE, AND CARBON TETRACHLORIDE TO FORM A SOLUTION CONTAINING 10% TO 30% BY WEIGHT OF POLYMERS; EMULSIFYING SAID SOLUTION IN 25 TO 100 PARTS OF WATER PER 100 PARTS OF POLYMER SOLUTION TO FORM A RAW LATEX; ADDING METHANOL SLOWLY TO THE RAW LATEX TO COAGULATE THE SAME; SQUEEZING THE COAGULATED POLYMERS UNTIL SAID POLYMERS CONTAIN LESS THAN 10% OF NON-VOLATILE MATERIALS; REDISPERSING THE COAGULATED POLYMER IN 300 TO 600 PARTS BY WEIGHT OF WATER PER 100 PARTS OF POLYMER; AND STRIPPING THE RESULTING DISPERSION TO THE DESIRED CONCENTRATION.