公开(公告)号：CA2369430C

公开(公告)日：2009-07-21

申请号：CA2369430

申请日：2000-05-09

Applicant: BASF AG

Inventor： VOSS HARTWIG ,  DYLLICK-BRENZINGER RAINER ,  DECKER JURGEN ,  BERNBACH JURGEN ,  RUBENACKER MARTIN ,  MEIXNER HUBERT ,  LORENZ KLAUS ,  STEUERLE ULRICH

IPC: A61K8/72 ,  B01D61/14 ,  A61K8/00 ,  A61K8/41 ,  A61K8/42 ,  A61K8/88 ,  A61Q5/00 ,  A61Q19/00 ,  B01D61/22 ,  B01D61/58 ,  C08G73/00 ,  C08G73/02 ,  C08G73/04 ,  C08G85/00 ,  D21H21/10 ,  D21H21/16

Abstract: A process for fractionating water-soluble or water-dispersible amino-containing synthetic polymers having a broad molar mass distribution by ultrafiltration, wherein the polymer solution or dispersion to be fractionated is fed continuously into an ultrafiltration circulation with at least one ultrafiltration unit, and retentate having a narrower molar mass distribution and permeate are discharged continuously, in such a way that the ultrafiltration circulation is essentially in a steady state, the polymers obtainable by this process and their use.

公开(公告)号：FI115634B

公开(公告)日：2005-06-15

申请号：FI971832

申请日：1997-04-29

Applicant: BASF AG

Inventor： LINHART FRIEDRICH ,  STANGE ANDREAS ,  SCHUMACHER RUDOLF ,  HARTMANN HEINRICH ,  DENZINGER WALTER ,  NIESSNER MANFRED ,  REUTHER WOLFGANG ,  MEIXNER HUBERT

IPC: C08B31/12 ,  C08B31/00 ,  C08B35/00 ,  C08G73/02 ,  C08G81/00 ,  D21H17/29 ,  D21H21/18 ,  D21H21/20

公开(公告)号：ES2232207T3

公开(公告)日：2005-05-16

申请号：ES99971821

申请日：1999-10-30

Applicant: BASF AG

Inventor： NEGELE ANTON ,  GAUWEILER WERNER ,  MEIXNER HUBERT ,  MAHR NORBERT ,  RUBENACKER MARTIN

IPC: C08F2/22 ,  C08F8/12 ,  C08F26/02 ,  C08L39/00 ,  C09K23/52 ,  C08L101/12 ,  D21H17/37 ,  D21H17/45 ,  D21H21/10 ,  D21H21/18 ,  D21H21/20

Abstract: Dispersiones acuosas de polímeros hidrosolubles de la N-vinilformamida y/o de la N-vinilacetamida, caracterizadas porque las dispersiones contienen, referido a 100 partes en peso de agua, (A) de 5 hasta 80 partes en peso de un polímero hidrosoluble, que contiene unidades de N- vinilformamida y/o de N-vinilacetamida con tamaños de partículas de 50 nm hasta 2 m, y (B) de 1 hasta 50 partes en peso de al menos un dispersante polímero, que se escoge del grupo, consistiendo de carboximetilcelulosa, almidón hidrosoluble, ésteres de almidón, xantogenatos de almidón, acetatos de almidón, dextran, polialquilenglicoles, acetato de polivinilo, polivinilalcohol, polivinilpirrolidona, polivinilpiridina, polietilenimina, polivinilimidazol, polivinilsuccinimida y cloruro polidialildimetilamónico.

公开(公告)号：CA2258569C

公开(公告)日：2005-04-12

申请号：CA2258569

申请日：1997-07-07

Applicant: BASF AG

Inventor： LINHART FRIEDRICH ,  MEIXNER HUBERT ,  DYLLICK-BRENZINGER RAINER ,  BAUMANN PETER ,  DIRKS BERND ,  GERBER KLAUS-DIETER ,  MONCH DIETMAR

IPC: D21H17/45 ,  D21H17/29 ,  D21H17/37 ,  D21H17/56 ,  D21H17/68 ,  D21H23/14

Abstract: Paper and cardboard are produced by draining pulps, with sheet formation and drying of the sheets, by a process in which first (a) polyethyleneimines having a molar mass M w of more than 500,000 or polymers containing vinylamine units and having a molar mass of from 5000 to 3 million and then (b) cationic polyacrylamides or polymers containing vinylamine units, the molar masses M w of the polymers each being at least 4 million, are added to the pulps, and the pulp is then subjected to at least one shearing stage and is flocculated by adding bentonite, colloidal silica or clay.

公开(公告)号：PT1137679E

公开(公告)日：2005-03-31

申请号：PT99971821

申请日：1999-10-30

Applicant: BASF AG

Inventor： MEIXNER HUBERT ,  NEGELE ANTON ,  RUBENACKER MARTIN ,  MAHR NORBERT ,  WERNER GAUWEILER

IPC: C08F2/22 ,  C08F8/12 ,  C08F26/02 ,  C08L39/00 ,  C08L101/12 ,  D21H17/37 ,  D21H17/45 ,  D21H21/10 ,  D21H21/18 ,  D21H21/20

Abstract: Aqueous dispersions of water-soluble polymers of N-vinylcarboxamides contain, based on 100 parts of water, (A) from 5 to 80 parts by weight of water-soluble polymer containing N-vinylformamide units and/or N-vinylacetamide units and having particle sizes of from 50 nm to 2 mum and (B) from 1 to 50 parts by weight of at least one polymeric dispersant which is incompatible with the water-soluble polymers (A) in aqueous solution, which dispersions are prepared by polymerizing (A) from 5 to 80 parts by weight of N-vinylformamide and/or N-vinylacetamide, if desired together with other monoethylenically unsaturated monomers which form water-soluble polymers therewith, and (B) from 1 to 50 parts by weight of at least one polymeric dispersant which is incompatible with the polymers, formed from the monomers (A), in aqueous solution, in 100 parts by weight of water, at from 30 to 95° C. in the presence of from 0.001 to 5.0% by weight, based on the monomers used, and the aqueous dispersions of water-soluble polymers are used as drainage aids, flocculants and retention aids and as wet and dry strength agents and as fixing compositions in papermaking.

公开(公告)号：DE59911207D1

公开(公告)日：2005-01-05

申请号：DE59911207

申请日：1999-10-30

Applicant: BASF AG

Inventor： NEGELE ANTON ,  GAUWEILER WERNER ,  MEIXNER HUBERT ,  MAHR NORBERT ,  RUEBENACKER MARTIN

IPC: C08F2/22 ,  C08F8/12 ,  C08F26/02 ,  C08L39/00 ,  C08L101/12 ,  D21H17/37 ,  D21H17/45 ,  D21H21/10 ,  D21H21/18 ,  D21H21/20

Abstract: Aqueous dispersions of water-soluble polymers of N-vinylcarboxamides contain, based on 100 parts of water, (A) from 5 to 80 parts by weight of water-soluble polymer containing N-vinylformamide units and/or N-vinylacetamide units and having particle sizes of from 50 nm to 2 mum and (B) from 1 to 50 parts by weight of at least one polymeric dispersant which is incompatible with the water-soluble polymers (A) in aqueous solution, which dispersions are prepared by polymerizing (A) from 5 to 80 parts by weight of N-vinylformamide and/or N-vinylacetamide, if desired together with other monoethylenically unsaturated monomers which form water-soluble polymers therewith, and (B) from 1 to 50 parts by weight of at least one polymeric dispersant which is incompatible with the polymers, formed from the monomers (A), in aqueous solution, in 100 parts by weight of water, at from 30 to 95° C. in the presence of from 0.001 to 5.0% by weight, based on the monomers used, and the aqueous dispersions of water-soluble polymers are used as drainage aids, flocculants and retention aids and as wet and dry strength agents and as fixing compositions in papermaking.

公开(公告)号：PT972110E

公开(公告)日：2004-10-29

申请号：PT98921399

申请日：1998-03-26

Applicant: BASF AG

Inventor： KRUGER ELLEN ,  DYLLICK-BRENZINGER RAINER ,  STANGE ANDREAS ,  MEIXNER HUBERT ,  RUBENACKER MARTIN ,  LORENCAK PRIMOZ ,  BAUMANN PETER

IPC: D21H17/20 ,  D21H17/29 ,  D21H17/45 ,  D21H17/55 ,  D21H17/56 ,  D21H21/10 ,  D21H21/18 ,  D21H23/76

Abstract: Paper, board and cardboard having high dry strength are produced by the addition of cationic, anionic and/or amphoteric starch as dry strength agents to the paper stock and drainage of the paper stock with sheet formation in the presence of cationic polymers as retention aids for starch, and cationic polymeric retention aids are used for increasing the retention of dry strength agents comprising cationic, anionic and/or amphoteric starch in the production of paper, board and cardboard.

公开(公告)号：AT225438T

公开(公告)日：2002-10-15

申请号：AT98924201

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.

公开(公告)号：DE59805005D1

公开(公告)日：2002-09-05

申请号：DE59805005

申请日：1998-04-02

Applicant: BASF AG

Inventor： LINHART FRIEDRICH ,  MELZER JAROSLAV ,  MEIXNER HUBERT

IPC: D21H17/56 ,  D21H21/02

Abstract: Paper, board and cardboard are produced from paper stocks which contain tacky impurities by the addition of surfactants and cationic polymers having a charge density of at least 1.5 meq/g (measured at pH 7) and a molar mass Mw of the cationic polymers of at least 15,000 and drainage of the paper stocks with fixation of the tacky impurities in the paper produced.

公开(公告)号：AT221595T

公开(公告)日：2002-08-15

申请号：AT98922636

申请日：1998-04-02

Applicant: BASF AG

Inventor： LINHART FRIEDRICH ,  MELZER JAROSLAV ,  MEIXNER HUBERT

IPC: D21H17/56 ,  D21H21/02

Abstract: Paper, board and cardboard are produced from paper stocks which contain tacky impurities by the addition of surfactants and cationic polymers having a charge density of at least 1.5 meq/g (measured at pH 7) and a molar mass Mw of the cationic polymers of at least 15,000 and drainage of the paper stocks with fixation of the tacky impurities in the paper produced.