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公开(公告)号：DE10055592A1
公开(公告)日：2002-05-23
申请号：DE10055592
申请日：2000-11-09
Applicant: BASF AG
Inventor： LINHART FRIEDRICH , DIRKS BERND , ULLRICH HEINRICH , BLUM THIERRY , MAHR NORBERT , FRENZEL STEFAN , WENDKER MARTIN
Abstract: Paper coating composition contains, as additive, an N-vinylformamide (co)polymer (I). Independent claims are also included for: (a) the use of (I) as additive in paper coating compositions; and (b) paper coated with the composition.
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公开(公告)号：NZ500879A
公开(公告)日：2001-05-25
申请号：NZ50087998
申请日：1998-04-24
Applicant: BASF AG
Inventor： MAHR NORBERT , STEUERLE ULRICH , HONE MATTHIAS , LORENZ KLAUS , SCHOLZ RAINER , ETTL ROLAND , MEIXNER HUBERT , ESSER ANTON
IPC: D21H21/06 , C08F8/32 , C08F8/44 , C08G73/02 , D21H17/08 , D21H17/14 , D21H17/17 , D21H17/37 , D21H17/38 , D21H17/45 , D21H17/49 , D21H17/54 , D21H17/55 , D21H17/56 , D21H21/02 , D21H21/10 , D21H21/16
Abstract: A method for producing paper, paperboard and cardboard by dehydrating paper material containing interfering substances in the presence of fixing agents. The fixing agents are obtained by reacting polymers containing amino and/or ammonium groups selected from the group of polymers containing vinyl amino units, polyalkylenepolyamines, polyamidoamines, polyamidoamines grafted with ethylene imine and optionally cross-linked, polydiallydldimethylammonium chlorides, polymers containing dialkylaminoalkylacrylamide-units or dialkylaminoalkylmethacrylamide units, polyallylamines and dicyandiamide-formaldehyde-condensates, with reactive sizing agents for paper in weight ratio of a polymer:reactive sizing agent of 15,000 : 1 to 1 : 1.
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公开(公告)号：AU726417B2
公开(公告)日：2000-11-09
申请号：AU4700197
申请日：1997-07-16
Applicant: BASF AG
Inventor： OPPENLANDER KNUT , OETTER GUNTER , KRONER RUDI , MAHR NORBERT , JATZEK HANS-JURGEN , TAEGER KLAUS
IPC: C07D233/61 , C07D521/00 , C09K8/54 , C23F11/14 , C07D233/24
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公开(公告)号：DE19851024A1
公开(公告)日：2000-05-11
申请号：DE19851024
申请日：1998-11-05
Applicant: BASF AG
Inventor： NEGELE ANTON , GAUWEILER WERNER , MEIXNER HUBERT , MAHR NORBERT , RUEBENACKER MARTIN
IPC: C09K23/52 , C08F2/22 , C08F8/12 , C08F26/02 , C08L39/00 , C08L101/12 , D21H17/37 , D21H17/45 , D21H21/10 , D21H21/18 , D21H21/20 , C08F26/00 , D21H17/34
Abstract: Aqueous dispersions of water-soluble polymers of N-vinyl carboxylic acid amides that comprise the following in relation to 100 parts by weight of water: (A) 5-80 parts by weight of a water-soluble polymer containing N-vinylformamide and/or N-vinyl acetamide with particle sizes ranging from 50 nm 2 mu m and (B) 1-50 parts by weight of at least one polymer dispersion agent that is incompatible with the water-soluble polymers (A) in an aqueous solution. The invention also relates to a method for the production of said dispersions by polymerization of (A) 5-80 parts by weight of N-vinyl formamide and/or N-vinylacetamide, optionally together with other monoethylenically unsaturated monomers that form water-soluble polymers, and (B) 1-50 parts by weight of at least one polymer dispersion agent that is incompatible with the polymers formed from the monomers (A) in an aqueous solution, in 100 parts by weight of water at temperatures ranging from 30-95 DEG C in the presence of 0.001-5.0 wt. % in relation to the monomers used. The invention further relates to the use of aqueous dispersions of water-soluble polymers as dehydrating agents.
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公开(公告)号：DE19836992A1
公开(公告)日：2000-02-17
申请号：DE19836992
申请日：1998-08-14
Applicant: BASF AG
Inventor： NIESNER MANFRED , RUEBENACKER MARTIN , MAHR NORBERT
Abstract: Process for removing formamide (I) from a polymer containing N-vinylformamide units comprises treating the polymer with an acid or base in an amount of 1-2 molar equivalents per molar equivalent of (I) under conditions such that the N-vinylformamide units undergo practically no hydrolysis.
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Patent Agency Ranking
公开(公告)号：ID22692A
公开(公告)日：1999-12-09
申请号：ID991314
申请日：1998-04-24
Applicant: BASF AG
Inventor： ETTL ROLAND , MEIXNER HUBERT , ESSER ANTON , SCHOLZ RAINER , MAHR NORBERT , STEUERLE ULRICH , HONE MATTHIAS , LORENZ KLAUS
IPC: D21H21/06 , C08F8/32 , C08F8/44 , C08G73/02 , D21H17/08 , D21H17/14 , D21H17/17 , D21H17/37 , D21H17/38 , D21H17/45 , D21H17/49 , D21H17/54 , D21H17/55 , D21H17/56 , D21H21/02 , D21H21/10 , D21H21/16
Abstract: Paper, board and cardboard are produced by draining paper stock containing interfering substances in the presence of fixing agents by a process in which the fixing agents used are reaction products which are obtainable by reacting amino- and/or ammonium-containing polymers selected from the group consisting of thepolymers containing vinylamine unitspolyalkylene polyaminespolyamidoaminesethyleneimine-grafted polyamidoamines which may be crosslinked,polydiallyldimethylammonium chloridespolymers containing dialkylaminoalkylacrylamide units or dialkylaminoalkylmethacrylamide units andpolyallylamines anddicyandiamide and formaldehyde condensateswith reactive sizes for paper in a weight ratio of polymer to reactive size of from 15,000:1 to 1:1, and the reaction products thus obtainable are used as fixing agents for water-soluble and for water-insoluble interfering substances in the production of paper, board and cardboard from paper stocks containing interfering substances.
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公开(公告)号：AU9536598A
公开(公告)日：1999-03-29
申请号：AU9536598
申请日：1998-09-05
Applicant: BASF AG
Inventor： TROPSCH JURGEN , ZELLER DIETER , NEGELE ANTON , MAHR NORBERT , DECKER JURGEN
IPC: A01N37/44
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公开(公告)号：AU9536498A
公开(公告)日：1999-03-29
申请号：AU9536498
申请日：1998-09-05
Applicant: BASF AG
Inventor： TROPSCH JURGEN , ZELLER DIETER , NEGELE ANTON , MAHR NORBERT , DECKER JURGEN
IPC: A01N47/12
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公开(公告)号：AU7648198A
公开(公告)日：1998-11-27
申请号：AU7648198
申请日：1998-04-24
Applicant: BASF AG
Inventor： ETTL ROLAND , MEIXNER HUBERT , ESSER ANTON , SCHOLZ RAINER , MAHR NORBERT , STEUERLE ULRICH , HONE MATTHIAS , LORENZ KLAUS
IPC: D21H21/06 , C08F8/32 , C08F8/44 , C08G73/02 , D21H17/08 , D21H17/14 , D21H17/17 , D21H17/37 , D21H17/38 , D21H17/45 , D21H17/49 , D21H17/54 , D21H17/55 , D21H17/56 , D21H21/02 , D21H21/10 , D21H21/16
Abstract: Paper, board and cardboard are produced by draining paper stock containing interfering substances in the presence of fixing agents by a process in which the fixing agents used are reaction products which are obtainable by reacting amino- and/or ammonium-containing polymers selected from the group consisting of thepolymers containing vinylamine unitspolyalkylene polyaminespolyamidoaminesethyleneimine-grafted polyamidoamines which may be crosslinked,polydiallyldimethylammonium chloridespolymers containing dialkylaminoalkylacrylamide units or dialkylaminoalkylmethacrylamide units andpolyallylamines anddicyandiamide and formaldehyde condensateswith reactive sizes for paper in a weight ratio of polymer to reactive size of from 15,000:1 to 1:1, and the reaction products thus obtainable are used as fixing agents for water-soluble and for water-insoluble interfering substances in the production of paper, board and cardboard from paper stocks containing interfering substances.
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公开(公告)号：AU4700197A
公开(公告)日：1998-02-09
申请号：AU4700197
申请日：1997-07-16
Applicant: BASF AG
Inventor： OPPENLANDER KNUT , OETTER GUNTER , KRONER RUDI , MAHR NORBERT , JATZEK HANS-JURGEN , TAEGER KLAUS
IPC: C07D233/61 , C07D521/00 , C09K8/54 , C23F11/14 , C07D233/24
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