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公开(公告)号:DK274282A
公开(公告)日:1982-12-20
申请号:DK274282
申请日:1982-06-18
Applicant: BASF AG
Inventor: LINDHART F , HARTMANN J , JUNG D , HARTMANN H , BURKERT H , HEIDE W
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公开(公告)号:NZ220553A
公开(公告)日:1989-01-06
申请号:NZ22055387
申请日:1987-06-04
Applicant: BASF AG
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.
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