| abstract |
A PROCESS IS PROVIDED FOR REMOVAL OF PHENOLIC POLYMERIZATION INHIBITORS FROM ALKENYL MONOMERS. THE PROCESS INCLUDES FIRST CONTACTIN THE MONOMER WITH A HIGHLY POROUS, STRONGLY BASIC, QUATERNARY AMMONIUM ANION EXCHANGE RESIN IN THE SALT FORM TO REMOVE A MAJOR PORTION OF THE INHIBITOR, ANS SUBSEQUENTLY CONTACTING THE MONOMER WITH A HIGHLY POROUS, WEAKLEY BASIC, TERTIARY AMINE ANION EXCHANGE RESIN IN THE HYDROXIDE FORM THE PRODUCE A MONOMER PRODUCE SUBSTANTIALLY FREE OF THE INHIBITOR. |