POLYAMMONIUM QUATERNARY POLYMER FOR CONTROLLING ANIONIC TRASH AND PITCH DEPOSITION AND TREATING COATED BROKE

摘要

A method is disclosed for controlling anionic trash and pitch deposition in apulp and papermaking system treating coated brokewhich comprises the step of adding a polyammonium quaternary polymer to thesystem. The polyammonium quaternary, which is eitherbranched or crosslinked, is obtained from at least one cationic monomer,preferably diallyldimethylammonium chloride, and at least onebranching or crosslinking monomer, preferably N,N,N-triallylamine or N,N,N-triallymine hydrochloride.