公开(公告)号：ES2263060T3

公开(公告)日：2006-12-01

申请号：ES03793769

申请日：2003-08-29

Applicant: BASF AG

Inventor： GAUWEILER WERNER ,  LEDUC MARC ,  CHRISSTOFFELS LYSANDER ,  GOTSCHE MICHAEL ,  WOOD CLAUDIA

IPC: C08F220/34 ,  A61K8/00 ,  E21D9/13 ,  A61K8/72 ,  A61K8/81 ,  A61Q1/00 ,  A61Q1/02 ,  A61Q5/00 ,  B01D21/01 ,  C08F2/10 ,  C08F2/44 ,  C08F8/44 ,  C08F220/04 ,  C09K23/18 ,  C09K23/22 ,  C09K23/52

Abstract: Procedimiento para la producción de polímeros catiónicos solubles en agua o hinchables en agua mediante (i) copolimerización iniciada por radicales libres de mezclas de monómeros en agua que comprenden (a) desde el 1 hasta el 99% en peso de un monómero catiónico o monómero cuaternizable, (b) desde el 1 hasta el 99% en peso de un monómero soluble en agua, (c) desde el 0 hasta el 10% en peso de un monómero copolimerizable por radicales libres, bi o polifuncional, ajustando las cantidades de (a) a (c) de tal manera que el polímero resultante tiene una carga global positiva, en presencia del 1 al 100% de la cantidad de una sal que es necesaria para saturar el medio de reacción con dicha sal y en presencia del 0, 1 al 20% en peso con respecto al peso de la dispersión, de un dispersante anfótero que tiene una carga global negativa, y (ii) cuaternización posterior del polímero si el monómero (a) empleado es un monómero no cuaternizado.

公开(公告)号：AT338775T

公开(公告)日：2006-09-15

申请号：AT03789288

申请日：2003-12-16

Applicant: BASF AG

Inventor： CHRISSTOFFELS LYSANDER ,  HOESSEL PETER ,  LEDUC MARC ,  WOOD CLAUDIA ,  ANGEL MAXIMILIAN ,  MATHAUER KLEMENS ,  MUKHERJEE PULAKESH ,  GAUWEILER WERNER ,  BOELTER HENNING

IPC: A61K8/02 ,  A61K8/81 ,  A61Q1/02 ,  A61Q1/04 ,  A61Q1/06 ,  A61Q1/10 ,  A61Q1/14 ,  A61Q5/00 ,  A61Q5/02 ,  A61Q5/04 ,  A61Q5/06 ,  A61Q5/10 ,  A61Q5/12 ,  A61Q9/02 ,  A61Q11/00 ,  A61Q15/00 ,  A61Q17/04 ,  A61Q19/00 ,  A61Q19/10 ,  C08F20/54 ,  C08F26/02

Abstract: Aqueous dispersion obtainable by free-radical polymerization of a) at least one N-vinyl-containing monomer b) at least one polymeric dispersant c) at least one polymeric precipitation agent d) at least one crosslinker e) optionally further monomers f) optionally at least one regulator g) optionally a buffer substance where the weight ratio of b) to c) is in the range from 1:50 to 1:0.02.

公开(公告)号：DE60305335D1

公开(公告)日：2006-06-22

申请号：DE60305335

申请日：2003-08-29

Applicant: BASF AG

Inventor： GAUWEILER WERNER ,  LEDUC MARC ,  CHRISSTOFFELS LYSANDER ,  GOTSCHE MICHAEL ,  WOOD CLAUDIA

IPC: C08F220/34 ,  A61K8/00 ,  E21D9/13 ,  A61K8/72 ,  A61K8/81 ,  A61Q1/00 ,  A61Q1/02 ,  A61Q5/00 ,  B01D21/01 ,  C08F2/10 ,  C08F2/44 ,  C08F8/44 ,  C08F220/04 ,  C09K23/18 ,  C09K23/22 ,  C09K23/52

Abstract: A process for the production of water-soluble or water-swellable cationic polymers by (i) free-radically initiated copolymerization of monomer mixtures in water comprising (a) from 1 to 99% by weight of a cationic monomer or quaternizable monomer, (b) from 1 to 99% by weight of a water-soluble monomer, (c) from 0 to 10% by weight of a bi- or polyfunctional, free-radically copolymerizable monomer, adjusting the amounts (a) to (c) in such a way that the resulting polymer has an overall positive charge, in the presence of 1 to 100% of the amount of a salt which is necessary to saturate the reaction medium with said salt and in the presence of 0,1 to 20 % by weight referred to the weight of the dispersion, of an amphoteric dispersant having an overall negative charge, and (ii) subsequent quaternization of the polymer if the monomer (a) employed is a non-quaternized monomer is disclosed.

公开(公告)号：AT326490T

公开(公告)日：2006-06-15

申请号：AT03793769

申请日：2003-08-29

Applicant: BASF AG

Inventor： GAUWEILER WERNER ,  LEDUC MARC ,  CHRISSTOFFELS LYSANDER ,  GOTSCHE MICHAEL ,  WOOD CLAUDIA

IPC: E21D9/13 ,  A61K8/00 ,  A61K8/72 ,  A61K8/81 ,  A61Q1/00 ,  A61Q1/02 ,  A61Q5/00 ,  B01D21/01 ,  C08F2/10 ,  C08F2/44 ,  C08F8/44 ,  C08F220/04 ,  C08F220/34

Abstract: A process for the production of water-soluble or water-swellable cationic polymers by (i) free-radically initiated copolymerization of monomer mixtures in water comprising (a) from 1 to 99% by weight of a cationic monomer or quaternizable monomer, (b) from 1 to 99% by weight of a water-soluble monomer, (c) from 0 to 10% by weight of a bi- or polyfunctional, free-radically copolymerizable monomer, adjusting the amounts (a) to (c) in such a way that the resulting polymer has an overall positive charge, in the presence of 1 to 100% of the amount of a salt which is necessary to saturate the reaction medium with said salt and in the presence of 0,1 to 20 % by weight referred to the weight of the dispersion, of an amphoteric dispersant having an overall negative charge, and (ii) subsequent quaternization of the polymer if the monomer (a) employed is a non-quaternized monomer is disclosed.

公开(公告)号：CA2576611A1

公开(公告)日：2006-03-16

申请号：CA2576611

申请日：2005-09-08

Applicant: BASF AG

Inventor： LEIFERT PETER ,  BLUM RAINER ,  LEDUC MARC

IPC: D21H21/10

Abstract: Process for the production of paper, board and cardboard by draining a paper stock on a wire with sheet formation and drying of the sheets, the sheet formation being carried out in the absence of finely divided inorganic flocculants and (a) polymers comprising vinylamine units and/or polyvinylformamide having a molar mass Mw of, in each case, at least 1 million and (b) at least one cationic or nonionic polyacrylamide and/or one cationic or nonionic polymethacrylamide having a molar mass Mw of, in each case, at least 2.5 million being used as retention aids.

公开(公告)号：NO20060311A

公开(公告)日：2006-02-24

申请号：NO20060311

申请日：2006-01-20

Applicant: BASF AG

Inventor： CLAASSEN PETER ,  MUKHERJEE PULAKESH ,  LEDUC MARC ,  GAUWEILER WERNER ,  NOWACK ROLAND

IPC: C08F251/00 ,  C08F265/00 ,  C08F283/06 ,  C08F291/06

CPC classification number: C08F283/06 ,  C08F251/00 ,  C08F265/00 ,  C08F291/06 ,  C08F2/20

公开(公告)号：AU2003260474A1

公开(公告)日：2004-03-29

申请号：AU2003260474

申请日：2003-08-29

Applicant: BASF AG

Inventor： GAUWEILER WERNER ,  LEDUC MARC ,  CHRISSTOFFELS LYSANDER ,  GOTSCHE MICHAEL ,  WOOD CLAUDIA

IPC: E21D9/13 ,  A61K8/00 ,  A61K8/72 ,  A61K8/81 ,  A61Q1/00 ,  A61Q1/02 ,  A61Q5/00 ,  B01D21/01 ,  C08F2/10 ,  C08F2/44 ,  C08F8/44 ,  C08F220/04 ,  C08F220/34

Abstract: A process for the production of water-soluble or water-swellable cationic polymers by (i) free-radically initiated copolymerization of monomer mixtures in water comprising (a) from 1 to 99% by weight of a cationic monomer or quaternizable monomer, (b) from 1 to 99% by weight of a water-soluble monomer, (c) from 0 to 10% by weight of a bi- or polyfunctional, free-radically copolymerizable monomer, adjusting the amounts (a) to (c) in such a way that the resulting polymer has an overall positive charge, in the presence of 1 to 100% of the amount of a salt which is necessary to saturate the reaction medium with said salt and in the presence of 0,1 to 20 % by weight referred to the weight of the dispersion, of an amphoteric dispersant having an overall negative charge, and (ii) subsequent quaternization of the polymer if the monomer (a) employed is a non-quaternized monomer is disclosed.

公开(公告)号：CA2576611C

公开(公告)日：2014-12-23

申请号：CA2576611

申请日：2005-09-08

Applicant: BASF AG

Inventor： LEDUC MARC ,  BLUM RAINER ,  LEIFERT PETER

IPC: D21H21/10

Abstract: The invention relates to a method for the production of paper, paperboard and cardboard by dripping a paper material onto a sieve, by forming sheets and then drying the sheets. The sheets are formed in the absence of fine-particled, inorganic, flocculating agents and the retention agent is used as (a) polymers containing vinylamine units and/or polyvinylformamide having a molar mass Mw of, respectively, at least 1 million and (b) at least one cationic or non-ionic polyacrylamide and/or a cationic or non-ionic polymethacrylamide having a molar mass Mw of, respectively, at least 2.5 million.

公开(公告)号：AT386754T

公开(公告)日：2008-03-15

申请号：AT03753410

申请日：2003-09-12

Applicant: BASF AG

Inventor： LEDUC MARC

IPC: C08F26/02

公开(公告)号：DE102004044379B4

公开(公告)日：2008-01-10

申请号：DE102004044379

申请日：2004-09-10

Applicant: BASF AG

Inventor： LEDUC MARC ,  BLUM RAINER ,  LEIFERT PETER

IPC: D21H21/10 ,  D21H17/00 ,  D21H17/37 ,  D21H17/44

Abstract: Process for the production of paper, board and cardboard by draining a paper stock on a wire with sheet formation and drying of the sheets, the sheet formation being carried out in the absence of finely divided inorganic flocculants and (a) polymers comprising vinylamine units and/or polyvinylformamide having a molar mass Mw of, in each case, at least 1 million and (b) at least one cationic or nonionic polyacrylamide and/or one cationic or nonionic polymethacrylamide having a molar mass Mw of, in each case, at least 2.5 million being used as retention aids.