公开(公告)号：DE102005029010A1

公开(公告)日：2006-12-28

申请号：DE102005029010

申请日：2005-06-21

Applicant: BASF AG

Inventor： KOCH OLIVER ,  BLUM RAINER ,  HEMEL RALF ,  LEDUC MARC

IPC: D21H17/37 ,  D21H21/10 ,  D21H21/18

Abstract: Production of paper, paperboard and cardboard comprises adding a polymer containing vinylamine units and an anionic polymer compound to a paper material, draining the paper material and drying the paper products; where the anionic polymer compound is a copolymer obtained by the copolymerization of N-vinylcarboxylic acid amide compound (a), monoethylenically unsaturated monomer (b) containing acid groups, optionally: other monoethylenically unsaturated monomer (c) and compounds (d) comprising at least two ethylenically unsaturated double bonds in the molecule. Production of paper, paperboard and cardboard comprises adding a polymer containing vinylamine units and an anionic polymer compound to a paper material, draining the paper material and drying the paper products; where the anionic polymer compound is a copolymer obtained by the copolymerization of N-vinylcarboxylic acid amide compound (I) of formula (CH 2=CH-N(-R 2>)(-CO-R 1>)), at least a monoethylenically unsaturated monomer (b) containing acid groups and/or its alkali metal, alkaline earth metal or ammonium salts, optionally other monoethylenically unsaturated monomer (c), and optionally compounds (d) comprising at least two ethylenically unsaturated double bonds in the molecule. R 1>, R 2>H or 1-6C alkyl.

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

IPC: D21H17/34 ,  D21H17/37 ,  D21H17/56 ,  D21H21/02

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.

公开(公告)号：DE10162052A1

公开(公告)日：2003-06-26

申请号：DE10162052

申请日：2001-12-17

Applicant: BASF AG

Inventor： LINHART FRIEDRICH ,  BLUM THIERRY ,  HEMEL RALF ,  BOHLMANN KLAUS

IPC: D21H17/45 ,  D21H17/34 ,  D21H17/47 ,  D21H21/30 ,  D21H23/04 ,  D21H23/10

Abstract: A method for the production of paper and cardboard by dewatering pulp in presence of cationic polymer(s) on a screen involves adding to the pulp (before sheet forming) a mixture of essentially linear, cationic polyelectrolyte(s) (I) and an optical brightener (II), using at least 2 parts by weight (pts. wt.) (I) to 1 pt. wt. (II). An Independent claim is also included for paper, pasteboard and cardboard obtained by this method.

公开(公告)号：DE10236252A1

公开(公告)日：2003-05-08

申请号：DE10236252

申请日：2002-08-07

Applicant: BASF AG

Inventor： BLUM RAINER ,  HEMEL RALF ,  MAHR NORBERT ,  LORZ RUDOLF

IPC: D21H17/37 ,  D21H17/45 ,  D21H17/68 ,  D21H21/10 ,  D21H23/18 ,  D21H23/76 ,  D21H17/44 ,  D21H17/63 ,  D21H23/10

Abstract: A process for preparation of paper, pasteboard, or cardboard involving cutting of the paper pulp, addition of microparticles of cationic polymer, and a finely divided inorganic component after the last cutting step and before pulp swelling, dewatering of the pulp, and sheet formation and drying of the sheets is new. A process for preparation of paper, pasteboard, or cardboard involving cutting of the paper pulp, addition of microparticles of cationic polymer, and a finely divided inorganic component after the last cutting step and before pulp swelling, dewatering of the pulp, and sheet formation and drying of the sheets. The cationic polymer of the microparticle system is cationic polyacrylamide, polymer containing vinylamine units, and/or polydiallyl dimethylammonium chloride containing polymer of mean mol.wt. 500,000 Dalton, and maximum charge density 4.0 meq/g, where the microparticle system free from polymers of charging density (sic) more than 4 meq/g is used as the retention agent.

公开(公告)号：DE58905366D1

公开(公告)日：1993-09-30

申请号：DE58905366

申请日：1989-06-10

Applicant: BASF AG

Inventor： HEMEL RALF ,  LINHART FRIEDRICH DR

IPC: G01N15/06 ,  C02F1/52 ,  G01N1/10 ,  G01N15/14

Abstract: A flow-through cuvette (1), through which the sample flow (2) - surrounded by an enveloping flow (3) - is passed, is equipped with an optical laser measuring device (4-7). For use in systems under pressure, a pressure and quantity stabiliser (9-11) is connected upstream of the input (8) for the enveloping flow medium of the cuvette, and a controller (13, 14, 16, 17) for the quantity of the sample flow and enveloping flow is connected downstream of the output (12) of the cuvette.

公开(公告)号：BRPI0611329B1

公开(公告)日：2016-12-20

申请号：BRPI0611329

申请日：2006-05-24

Applicant: BASF AG

Inventor： HAMERS CHRISTOPH ,  MECK DIETER ,  SCHMIDT-THÜMMES JÜRGEN ,  GISPERT NORBERT ,  MAHR NORBERT ,  BLUM RAINER ,  HEMEL RALF

IPC: D21H17/69

Abstract: processo para produção de papéis contendo carga e produtos de papel contendo carga, e, uso de suspensões aquosas de híbridos polímero-pigmento. processo para a produção de papéis contendo carga e produtos de papel contendo carga por adição de uma suspensão aquosa de pelo menos um híbrido polímero-pigmento finamente dividido para um estoque de papel e drenagem do estoque de papel com formação de folha, o híbrido polímero-pigmento sendo obtenível por moagem de uma suspensão aquosa de pelo menos um pigmento inorgânico na presença de pelo menos um aglutinante e, se apropriado, por secagem da suspensão aquosa assim obtenível e redispersão do híbrido polimero-pigmento secado em água, e o uso dos híbridos polímero-pigmento assim obteníveis como a carga para a produção de papel contendo carga ou produtos de papel contendo carga.

公开(公告)号：CA2609411C

公开(公告)日：2014-04-01

申请号：CA2609411

申请日：2006-05-24

Applicant: BASF AG

Inventor： MAHR NORBERT ,  MECK DIETER ,  BLUM RAINER ,  HEMEL RALF ,  GISPERT NORBERT ,  SCHMIDT-THUMMES JURGEN ,  HAMERS CHRISTOPH

IPC: D21H17/69

Abstract: The invention relates to a method for producing filled papers and filled paper products by adding an aqueous suspension of at least one finely particulate polymer-pigment hybrid to a paper-making stock and dewatering the paper-making stock while forming sheets. The polymer-pigment hybrid is obtained by grinding an aqueous suspension of at least inorganic pigment in the presence of at least one binder and optionally by drying the aqueous suspension so obtained and redispersing the dried polymer-pigment hybrid in water. The invention also relates to the polymer-pigment hybrids so obtained as fillers for producing filled paper or filled paper products.

公开(公告)号：BRPI0611329A2

公开(公告)日：2011-02-22

申请号：BRPI0611329

申请日：2006-05-24

Applicant: BASF AG

Inventor： MAHR NORBERT ,  MECK DIETER ,  BLUM RAINER ,  HEMEL RALF ,  GISPERT NORBERT ,  SCHMIDT-THUEMMES JUERGEN ,  HAMERS CHRISTOPH

IPC: D21H17/69

Abstract: Process for the production of filler-containing papers and filler-containing paper products by addition of an aqueous suspension of at least one finely divided polymer-pigment hybrid to a paper stock and drainage of the paper stock with sheet formation, the polymer-pigment hybrid being obtainable by milling an aqueous suspension of at least one inorganic pigment in the presence of at least one binder and, if appropriate, by drying the aqueous suspension thus obtainable and redispersing the dried polymer-pigment hybrid in water, and the use of the polymer-pigment hybrids thus obtainable as a filler for the production of filler-containing paper or filler-containing paper products.

公开(公告)号：BRPI0508262A

公开(公告)日：2007-07-31

申请号：BRPI0508262

申请日：2005-03-14

Applicant: BASF AG

Inventor： ESSER ANTON ,  BLUM RAINER ,  KUHN JOACHIM ,  LEDUC MARC ,  HEMEL RALF

IPC: D21H17/34 ,  D21H17/37 ,  D21H17/56 ,  D21H21/02

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.

公开(公告)号：DE102005025374A1

公开(公告)日：2006-12-07

申请号：DE102005025374

申请日：2005-05-31

Applicant: BASF AG

Inventor： MAHR NORBERT ,  MECK DIETER ,  BLUM RAINER ,  HEMEL RALF ,  GISPERT NORBERT ,  SCHMIDT-THUEMMES JUERGEN ,  HAMERS CHRISTOPH

IPC: D21H17/69 ,  D21H17/21 ,  D21H17/34

Abstract: Process for the production of filler-containing papers and filler-containing paper products by addition of an aqueous suspension of at least one finely divided polymer-pigment hybrid to a paper stock and drainage of the paper stock with sheet formation, the polymer-pigment hybrid being obtainable by milling an aqueous suspension of at least one inorganic pigment in the presence of at least one binder and, if appropriate, by drying the aqueous suspension thus obtainable and redispersing the dried polymer-pigment hybrid in water, and the use of the polymer-pigment hybrids thus obtainable as a filler for the production of filler-containing paper or filler-containing paper products.