公开(公告)号：ES2181220T3

公开(公告)日：2003-02-16

申请号：ES98922636

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：ES2172826T3

公开(公告)日：2002-10-01

申请号：ES97952006

申请日：1997-11-28

Applicant: BASF AG

Inventor： NEGELE ANTON ,  RUBENACKER MARTIN ,  UTECHT JENS ,  MEIXNER HUBERT

IPC: A61K8/72 ,  A61K8/91 ,  A61Q5/00 ,  A61Q5/12 ,  A61Q11/00 ,  A61Q19/10 ,  C04B24/26 ,  C05G3/00 ,  C05G3/10 ,  C08F8/12 ,  C08F271/00 ,  C08F271/02 ,  C08J3/03 ,  C09B62/00 ,  C09B67/00 ,  C09D151/00 ,  C09G1/00 ,  C09K17/20 ,  C09K23/00 ,  C09K23/22 ,  C09K23/52 ,  C11D1/88 ,  C11D3/37 ,  D21H17/34 ,  D21H21/02 ,  D21H21/28 ,  B01F17/00

Abstract: Amphiphilic graft copolymers are prepared by grafting a pre-formed graft base polymer comprising at least 5% by weight of units of formula (I)where R1 and R2 are independently H or C1 to C6 alkyl groups. The monomer grafted to the pre-formed graft base polymer is at least one of styrene or a C1 to C2 alkylstyrene, and optionally other monoethylenically unsaturated monomers. At least 5 mole % of the groupsare cleaved from the grafted copolymer thus formed.

公开(公告)号：PT944657E

公开(公告)日：2002-07-31

申请号：PT97952006

申请日：1997-11-28

Applicant: BASF AG

Inventor： MEIXNER HUBERT ,  UTECHT JENS ,  NEGELE ANTON ,  RUBENACKER MARTIN

IPC: A61K8/91 ,  A61Q5/00 ,  A61Q5/12 ,  A61Q11/00 ,  A61Q19/10 ,  C04B24/26 ,  C05G3/00 ,  C05G3/10 ,  C08F8/12 ,  C08F271/00 ,  C08F271/02 ,  A61K8/72 ,  C08J3/03 ,  C09B62/00 ,  C09B67/00 ,  C09D151/00 ,  C09G1/00 ,  C09K17/20 ,  C09K23/00 ,  C09K23/22 ,  C09K23/52 ,  C11D1/88 ,  C11D3/37 ,  D21H17/34 ,  D21H21/02 ,  D21H21/28 ,  B01F17/00 ,  C07C311/47 ,  C07D233/88 ,  C07C279/28

Abstract: Amphiphilic graft copolymers are prepared by grafting a pre-formed graft base polymer comprising at least 5% by weight of units of formula (I)where R1 and R2 are independently H or C1 to C6 alkyl groups. The monomer grafted to the pre-formed graft base polymer is at least one of styrene or a C1 to C2 alkylstyrene, and optionally other monoethylenically unsaturated monomers. At least 5 mole % of the groupsare cleaved from the grafted copolymer thus formed.

公开(公告)号：BR0010392A

公开(公告)日：2002-02-13

申请号：BR0010392

申请日：2000-05-09

Applicant: BASF AG

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

IPC: A61K8/72 ,  A61K8/00 ,  A61K8/41 ,  A61K8/42 ,  A61K8/88 ,  A61Q5/00 ,  A61Q19/00 ,  B01D61/14 ,  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：AU743434B2

公开(公告)日：2002-01-24

申请号：AU5557998

申请日：1997-11-28

Applicant: BASF AG

Inventor： NEGELE ANTON ,  RUBENACKER MARTIN ,  UTECHT JENS ,  MEIXNER HUBERT

IPC: A61K8/72 ,  A61K8/91 ,  A61Q5/00 ,  A61Q5/12 ,  A61Q11/00 ,  A61Q19/10 ,  C04B24/26 ,  C05G3/00 ,  C05G3/10 ,  C08F8/12 ,  C08F271/00 ,  C08F271/02 ,  C08J3/03 ,  C09B62/00 ,  C09B67/00 ,  C09D151/00 ,  C09G1/00 ,  C09K17/20 ,  C09K23/00 ,  C09K23/22 ,  C09K23/52 ,  C11D1/88 ,  C11D3/37 ,  D21H17/34 ,  D21H21/02 ,  D21H21/28 ,  B01F17/00

Abstract: Amphiphilic graft copolymers are prepared by grafting a pre-formed graft base polymer comprising at least 5% by weight of units of formula (I)where R1 and R2 are independently H or C1 to C6 alkyl groups. The monomer grafted to the pre-formed graft base polymer is at least one of styrene or a C1 to C2 alkylstyrene, and optionally other monoethylenically unsaturated monomers. At least 5 mole % of the groupsare cleaved from the grafted copolymer thus formed.

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.

公开(公告)号：ES2151736T3

公开(公告)日：2001-01-01

申请号：ES97930506

申请日：1997-07-07

Applicant: BASF AG

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

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

公开(公告)号：AU4563800A

公开(公告)日：2000-11-21

申请号：AU4563800

申请日：2000-05-09

Applicant: BASF AG

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

IPC: A61K8/72 ,  A61K8/00 ,  A61K8/41 ,  A61K8/42 ,  A61K8/88 ,  A61Q5/00 ,  A61Q19/00 ,  B01D61/14 ,  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：AT195985T

公开(公告)日：2000-09-15

申请号：AT97952902

申请日：1997-12-09

Applicant: BASF AG

Inventor： AUHORN WERNER ,  MOENCH DIETMAR ,  DYLLICK-BRENZINGER RAINER ,  SCHOLZ RAINER ,  BLUM RAINER ,  MEIXNER HUBERT

IPC: D21H23/04 ,  D21F1/08 ,  D21H17/37 ,  D21H17/54 ,  D21H21/10 ,  D21H23/24 ,  D21H21/00

Abstract: PCT No. PCT/EP97/06857 Sec. 371 Date Jan. 27, 1999 Sec. 102(e) Date Jan. 27, 1999 PCT Filed Dec. 9, 1997 PCT Pub. No. WO98/29603 PCT Pub. Date Jul. 9, 1998Paper is produced by draining a paper stock containing process chemicals on a paper machine, a main stream of the paper stock and a dilution stream which consists of white water, contains at least 5% by weight of the process chemicals and amounts to 5-35% by volume of the total head box feed being fed via a head box to the paper machine wire. The papers thus produced have an excellent formation profile and an outstanding ash distribution.

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.