Production of paper, board and cardboard

Details Production of paper, board and cardboard Production of paper, board and cardboard

D - Textiles, Paper

21

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9/59

D21H 13/12 (2006.01) D21H 13/00 (2006.01) D21H 17/34 (2006.01) D21H 17/37 (2006.01)

Patent

CA 1287453

Abstract of the Disclosure: Paper, board and cardboard are produced by draining a pulp slurry in the presence of high molecular weight, water-soluble polymers of N-vinyl- amides 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.

538060

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