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公开(公告)号：NO883274A
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
CPC classification number: D21H17/28 , D21H17/455 , D21H21/18
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公开(公告)号：FI883504A
公开(公告)日：1989-01-26
申请号：FI883504
申请日：1988-07-25
Applicant: BASF AG
Inventor： STANGE ANDREAS , DEGEN HANS-JUERGEN , AUHORN WERNER , WEBERNDOERFER VOLKMAR , KROENER MICHAEL , HARTMANN HEINRICH
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.
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公开(公告)号：AU578404B2
公开(公告)日：1988-10-20
申请号：AU6397786
申请日：1986-10-16
Applicant: BASF AG
Inventor： LORZ RUDOLF , LINHART FRIEDRICH , AUHORN WERNER , MATZ MANFRED
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公开(公告)号：NO158339C
公开(公告)日：1988-08-24
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
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.
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公开(公告)号：NO883274D0
公开(公告)日：1988-07-22
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
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.
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Patent Agency Ranking
公开(公告)号：AU7418387A
公开(公告)日：1987-12-17
申请号：AU7418387
申请日：1987-06-12
Applicant: BASF AG
Inventor： LINHART FRIEDRICH , DEGEN HANS-JUERGEN , AUHORN WERNER , KROENER MICHAEL , HARTMANN HEINRICH , HEIDE WILFRIED
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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公开(公告)号：FI872610A
公开(公告)日：1987-12-15
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
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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公开(公告)号：NO860919L
公开(公告)日：1986-09-15
申请号：NO860919
申请日：1986-03-11
Applicant: BASF AG
Inventor： HIRSCH GUENTER , AUHORN WERNER
IPC: C08F220/04 , C08F220/00 , C08F220/10 , C08F220/12 , C09K23/00 , D21H17/37 , D21H17/67 , D21H17/69 , D21H3/00
Abstract: Aqueous pigment suspensions which are added to the stock suspension during papermaking and contain, as a dispersant, from 0.1 to 2% by weight, based on the pigment, of a copolymer which contains, as copolymerized units, (a) from 40 to 95% by weight of an ester of (meth)acrylic acid with a saturated monohydric C1-C8-alcohol or with a saturated dihydric C2-C4-alcohol and (b) from 60 to 5% by weight of an ethylenically unsaturated C3-C5-carboxylic acid and has a K value of from 10 to 65 (determined according to H. Fikentscher in 1% aqueous solution in the form of the ammonium salt at pH 9 and at 20 DEG C.), their preparation and their use.
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公开(公告)号：NO860919A
公开(公告)日：1986-09-15
申请号：NO860919
申请日：1986-03-11
Applicant: BASF AG
Inventor： HIRSCH GUENTER , AUHORN WERNER
IPC: C08F220/00 , B01F17/00 , C08F220/04 , C08F220/10 , C08F220/12 , D21H17/37 , D21H17/67 , D21H17/69 , D21H3/00
CPC classification number: D21H17/69 , B01F17/0028
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公开(公告)号：AU8186182A
公开(公告)日：1982-09-30
申请号：AU8186182
申请日：1982-03-24
Applicant: BASF AG
Inventor： DEGEN HANS-JUERGEN , GUENDER WOLF , LINHART FRIEDRICH , AUHORN WERNER , FREY GUENTER , STREIT WERNER , FIKENTSCHER ROLF
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.
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