公开(公告)号：ZA8704222B

公开(公告)日：1989-02-22

申请号：ZA8704222

申请日：1987-06-12

Applicant: BASF AG

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

IPC: D21H17/23 ,  D21H17/34 ,  D21H17/37 ,  D21H17/47 ,  D21H17/55 ,  D21H ,  B01D

CPC classification number: D21H17/34 ,  D21H17/37

公开(公告)号：ZA874222B

公开(公告)日：1989-02-22

申请号：ZA874222

申请日：1987-06-12

Applicant: BASF AG

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

IPC: D21H17/23 ,  D21H17/34 ,  D21H17/37 ,  D21H17/47 ,  D21H17/55 ,  D21H23/76 ,  D21H ,  B01D

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.