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公开(公告)号：CA2288109A1
公开(公告)日：1998-11-12
申请号：CA2288109
申请日：1998-04-24
Applicant: BASF AG
Inventor： MAHR NORBERT , STEUERLE ULRICH , SCHOLZ RAINER , ESSER ANTON , ETTL ROLAND , MEIXNER HUBERT , HOENE 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: The invention relates to a method for producing paper, paperboard and cardboard by dehydrating paper material containing interfering substances in the presence of fixing agents. Reaction products are used as fixing agents. Said products are obtained by reacting polymers, containing amino and/or ammonium groups, from the group of: polymers containing vinyl amino units, polyalkylene polyamines, polyamidoamines, polyamidoamines grafted with ethylene imine and optionally cross-linked, polydiallydldimethylammoniumchlorides; polymers containing dialkylaminoalkylacrylamide-units or dialkylaminoalkylmethacrylamide units and polyallylamines and dicyandiamide-formaldehyde-condensates, with reactive sizing agents for paper with a polymer/reactive sizing agent weight ratio of 15,000 : 1 to 1 : 1. The invention also relates to reaction products thus obtained and to their use as fixing agents for water soluble and water insoluble interfering substances in the production of paper, paperboard and cardboard from paper materials containing interfering substances.
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公开(公告)号：CA2586076C
公开(公告)日：2016-03-15
申请号：CA2586076
申请日：2005-11-21
Applicant: BASF AG
Inventor： ESSER ANTON , HAEHNLE HANS-JOACHIM , RUEBENACKER MARTIN , SCHALL NORBERT , DUPUIS JACQUES , NEUTZNER JOSEF , NIESSNER MANFRED , STURM BERTHOLD
Abstract: The invention relates to a method for producing high dry strength paper, paperboard or cardboard by separately adding a vinyl amine unit-containing polymer and a polymeric anionic compound to a paper pulp, draining the paper pulp and drying the paper products. The inventive method is characterized by using at least one copolymer as the polymeric anionic compound which is obtained by copolymerizing (a) at least one N-propenoic acid amide of formula (I), wherein R1, R2 = H or C1 to C6 alkyl, (b) at least one acid group-containing monoethylenically unsaturated monomer and/or the alkali metal salts, alkaline earth metal salts or ammonium salts thereof and optionally (c) other monoethylenically unsaturated monomers, and optionally (d) compounds that comprise at least two ethylenically unsaturated double bonds in the molecule.
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公开(公告)号：CA2288109C
公开(公告)日：2007-03-13
申请号：CA2288109
申请日：1998-04-24
Applicant: BASF AG
Inventor： STEUERLE ULRICH , MAHR NORBERT , SCHOLZ RAINER , LORENZ KLAUS , HONE MATTHIAS , ESSER ANTON , ETTL ROLAND , MEIXNER HUBERT
IPC: D21H21/02 , 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 , D21H21/10 , D21H21/16
Abstract: The invention relates to a method for producing paper, paperboard and cardboard by dehydrating paper material containing interfering substances in the presence of fixing agents. Reaction products are used as fixing agents. Said products are obtained by reacting polymers, containing amino and/or ammonium groups, from the group of of: polymers containing vinyl amino units, polyalkylene polyamines, polyamidoamines, polyamidoamines grafted with ethylene imine and optionally cross-linked, polydiallydldimethylammoniumchlorides: polymers containing dialkylaminoalkylacrylamide-units or dialkylaminoalkylmethacrylamide units and polyallylamines and dicyandiamide-formaldehyde-condensates, with reactive sizing agents for paper with a polymer/reactive sizing agent weight ratio of 15,000 : 1 to 1 : 1. The invention also relates to reaction products thus obtained and to their use as fixing agents for water soluble and water insoluble interfering substances in the production of paper, paperboard and cardboard from paper materials containing interfering substances.
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公开(公告)号：DE102005022799A1
公开(公告)日：2006-11-16
申请号：DE102005022799
申请日：2005-05-12
Applicant: BASF AG
Inventor： ESSER ANTON , HAEHNLE HANS-JOACHIM , VADKERTHY TIBOR ADALBERT
Abstract: Additional cationic and/or amphoteric polymer(s) are added to the components containing the aqueous elutriate of fine particle fillers, before sheet formation. Materials added to the fibrous suspension do not include any ester of unsaturated carbonic acids with quaternated amino alcohols, as structural components. The cationic and/or amphoteric polymer(s) are added to the fibrous suspension directly after addition of components containing the aqueous elutriate of fine particle fillers. Cationic and/or amphoteric polymer(s) are added to the fibrous suspension in quantities of 0.0001 to 1 wt%, based on the dry matter content of the papermaking suspension. In paper made as described, the filler content is 3-45 wt%, based on the dry matter content of the papermaking suspension. An independent claim is included for paper made as described.
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公开(公告)号：DE502004001277D1
公开(公告)日：2006-10-05
申请号：DE502004001277
申请日：2004-03-30
Applicant: BASF AG
Inventor： ESSER ANTON , BRAIG VOLKER , WENDKER MARTIN , BLUM RAINER , BAUMANN PETER , NEUTZNER JOSEF , DUPUIS JACQUES , HAEHNLE HANS-JOACHIM
Abstract: Aqueous slurries of finely divided fillers which are at least partly coated with polymers and which are obtainable by treating aqueous slurries of finely divided fillers with at least one water-soluble amphoteric copolymer whose structures are identified in the specification are used as an additive to the paper stock in the production of filler-containing paper, filler-containing cardboard or filler-containing board by draining of the paper stock.
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Patent Agency Ranking
公开(公告)号：CA2590489A1
公开(公告)日：2006-06-29
申请号：CA2590489
申请日：2005-12-14
Applicant: BASF AG
Inventor： VON VADKERTHY TIBOR ADALBERT , HAEHNLE HANS-JOACHIM , ESSER ANTON
Abstract: A process for producing paper, board and cardboard in the presence of an aqueous slurry of components comprising finely divided fillers coated at least partly with water-soluble amphoteric copolymers, which involves adding, further to the aqueous slurry of components comprising finely divided fillers, at least one cationic and/or amphoteric polymer comprising as structural element no esters of unsaturated carboxylic acids with quaternized amino alcohols to the fiber suspension prior to sheet forming.
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公开(公告)号：CA2558277A1
公开(公告)日：2005-09-29
申请号：CA2558277
申请日：2005-03-14
Applicant: BASF AG
Inventor： BLUM RAINER , KUHN JOACHIM , ESSER ANTON , HEMEL RALF , LEDUC MARC
Abstract: A process for the production of paper, board and cardboard by draining a paper stock containing interfering substances in the presence of polymers which contain vinylamine units and which have an average molar mass Mw of at least 1 million, a high-consistency stock first being prepared, at least one polymer containing vinylamine units and having an average molar mass Mw of at least 1 million and a degree of hydrolysis of from 1 to 20 mol % being metered into the high-consistency stock, the high-consistency stock being diluted to a low-consistency stock by adding water, and the low-consistency stock being drained, the polymers being hydrolyzed homo- or copolymers of N-vinylcarboxamides additives for reducing deposits in the wire part, press section and drying section of paper machines.
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公开(公告)号：DE59805810D1
公开(公告)日：2002-11-07
申请号：DE59805810
申请日：1998-04-24
Applicant: BASF AG
Inventor： ETTL ROLAND , MEIXNER HUBERT , ESSER ANTON , SCHOLZ RAINER , MAHR NORBERT , STEUERLE ULRICH , HOENE 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：DE19850817A1
公开(公告)日：2000-05-11
申请号：DE19850817
申请日：1998-11-04
Applicant: BASF AG
Inventor： DECKER JUERGEN , MAHR NORBERT , ESSER ANTON , MEIXNER HUBERT , DYLLICK-BRENZINGER RAINER , KAHMEN MARTIN AUS DEM , GERCKE MARTIN
IPC: C08G69/48 , C08F8/00 , C08G73/02 , D21C5/02 , D21H17/54 , D21H21/02 , C08G85/00 , C08G59/14 , C08G18/60 , C08G18/64 , C08G18/58 , D21H21/18 , D21H21/04
Abstract: The invention relates to modified cationic polymers which can be obtained by reacting (a) water-soluble, polymeric compounds containing NH groups with (b) compounds which are at least bifunctional with regard to NH groups, which contain at least one alkyl radical or alkenyl radical having at least 8 C atoms, and which contain, as a functional group, a halohydrin, epoxide, carboxyl, chloroformate or isocyanate group or a halogen atom. The invention also relates to a method for producing the polymers by reacting the compounds of groups (a) and (b), and to the use of the modified cationic polymers during the production of paper as fixing agents for papermaking stock containing interfering substances.
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公开(公告)号：NO995437A
公开(公告)日：2000-01-03
申请号：NO995437
申请日：1999-11-05
Applicant: BASF AG
Inventor： ETTL ROLAND , MEIXNER HUBERT , ESSER ANTON , SCHOLZ RAINER , MAHR NORBERT , STEUERLE ULRICH , HOENE MATTHIAS , LORENZ KLAUS
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