公开(公告)号：NO883274L

公开(公告)日：1989-01-26

申请号：NO883274

申请日：1988-07-22

Applicant: BASF AG

Inventor： STANGE ANDREAS ,  DEGEN HANS-JUERGEN ,  AUHORN WERNER ,  WEBERNDOERFER VOLKMAR ,  KROENER MICHAEL ,  HARTMAN HEINRICH

IPC: D21H17/34 ,  D21H17/28 ,  D21H17/45 ,  D21H21/18 ,  D21H

Abstract: In the process, an agent which confers dry strength and can be obtained by mixing enzymatically degraded starch having a viscosity of 20 to 2,000 m Pa.s (determined on a 7.5% strength solution in water at 45 DEG C) with cationic polymers which contain, in copolymerised form,… a) diallyldimethylammonium chloride… b) N-vinylamine or… c) optionally substituted N-vinylimidazolines as characteristic monomers, the K-value of the cationic polymers being at least 30, is added to the paper stock and the stock is dewartered, during sheet formation.

公开(公告)号：NO158339B

公开(公告)日：1988-05-16

申请号：NO820960

申请日：1982-03-23

Applicant: BASF AG

Inventor： DEGEN HANS-JUERGEN ,  GUENDER WOLF ,  LINHART FRIEDRICH ,  AUHORN WERNER ,  FREY GUENTER ,  STREIT WERNER ,  FIKENTSCHER ROLF

IPC: C02F1/58 ,  B01D21/01 ,  B01D37/02 ,  C02F1/28 ,  C02F1/52 ,  C02F1/54

Abstract: A process for removing anionic compounds from water which is recycled in manufacturing processes, and from waste water, by adding (1) water-soluble products obtained by reacting an alkylating agent, having an aromatic substituent, with a cationic polyelectrolyte and (2) mineral adsorbents and/or a magnesium salt, aluminum salt or iron salt, with formation and flocculation of water-insoluble reaction products.

公开(公告)号：NO872454L

公开(公告)日：1987-12-15

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 WILFRED

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.

公开(公告)号：NO872454A

公开(公告)日：1987-12-15

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 WILFRED

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

CPC classification number: D21H17/34 ,  D21H17/37

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.

公开(公告)号：FI872610A0

公开(公告)日：1987-06-11

申请号：FI872610

申请日：1987-06-11

Applicant: BASF AG

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

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.

公开(公告)号：NO864644L

公开(公告)日：1987-05-22

申请号：NO864644

申请日：1986-11-20

Applicant: BASF AG

Inventor： LORZ RUDOLF ,  LINHART FRIEDRICH ,  AUHORN WERNER ,  MATZ MANFRED

IPC: D21H17/34 ,  D21H17/37 ,  D21H17/45 ,  D21H17/46 ,  D21H17/55 ,  D21H17/56 ,  D21H17/67 ,  D21H17/68 ,  D21H21/10 ,  D21H23/76 ,  D21H3/00

公开(公告)号：FI864294A0

公开(公告)日：1986-10-23

申请号：FI864294

申请日：1986-10-23

Applicant: BASF AG

Inventor： LORZ RUDOLF ,  LINHART FRIEDRICH ,  AUHORN WERNER ,  MATZ MANFRED

IPC: D21H17/34 ,  D21H17/37 ,  D21H17/45 ,  D21H17/46 ,  D21H17/55 ,  D21H17/56 ,  D21H17/67 ,  D21H17/68 ,  D21H21/10 ,  D21H23/76 ,  D21H

公开(公告)号：FI61904C

公开(公告)日：1982-10-11

申请号：FI752009

申请日：1975-07-10

Applicant: BASF AG

Inventor： SCHARF EMIL ,  FIKENTSCHER ROLF ,  AUHORN WERNER ,  STREIT WERNER

IPC: C08G81/00 ,  C08G69/40 ,  D21H17/55 ,  D21H17/56 ,  D21H21/10 ,  C08G69/48 ,  D21H3/58

公开(公告)号：FI820654L

公开(公告)日：1982-09-26

申请号：FI820654

申请日：1982-02-25

Applicant: BASF AG

Inventor： DEGEN HANS-JYRGEN ,  GUENDER WOLF ,  LINHART FRIEDRICH ,  AUHORN WERNER ,  FREY GUENTER ,  STREIT WERNER ,  FIKENTSCHER ROLF

IPC: C02F1/58 ,  B01D21/01 ,  B01D37/02 ,  C02F1/28 ,  C02F1/52 ,  C02F1/54 ,  C02F

Abstract: A process for removing anionic compounds from water which is recycled in manufacturing processes, and from waste water, by adding (1) water-soluble products obtained by reacting an alkylating agent, having an aromatic substituent, with a cationic polyelectrolyte and (2) mineral adsorbents and/or a magnesium salt, aluminum salt or iron salt, with formation and flocculation of water-insoluble reaction products.