公开(公告)号：NO872454D0

公开(公告)日：1987-06-12

申请号：NO872454

申请日：1987-06-12

Applicant: BASF AG

Inventor： LINHART FRIEDRICH ,  DEGEN HANS-JUERGEN ,  AUHORN WERNER ,  KROENER MICHAEL ,  HARTMANN HEINRICH ,  HEIDE WILFIED

IPC: D21H17/23 ,  D21H17/34 ,  D21H17/37 ,  D21H17/47 ,  D21H17/55 ,  D21H23/76 ,  D21H

Abstract: Paper, board and cardboard are produced by draining a pulp slurry in the presence of high molecular weight, water-soluble polymers of N-vinylamides as drainage aids, retention agents and flocculants. These polymers are particularly effective in a pulp slurry which has a high content of interfering substances and other phenolic compounds.