DRY BLENDING PROCESS FOR THE QUATERNIZATION OF POLYVINYL ALCOHOL

摘要

TITLE DRY BLENDING PROCESS FOR THE QUATERNIZATION OF POLYVINYL ALCOHOL Cationic polyvinyl alcohol is prepared by blending polyvinyl alcohol under high shear. conditions, at 0-100.degree.C, with a small amount of water, a small excess of base, and a quaternizing agent containg a halohydrin radical and a quaternary ammonium group. The quaternization proceeds with acceptable conversions of about 35 to well over 50%. The quaternized polyvinyl alcohol has many applications, including use as a flocculating agent, as a stabilizing colloid, and in adhesive formulations.