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公开(公告)号:NO990078A
公开(公告)日:1999-01-08
申请号:NO990078
申请日:1999-01-08
Applicant: BASF AG
Inventor: DYLLICK-BRENZINGER RAINER , MEIXNER HUBERT , LINHART FRIEDRICH , M NCH DIETMAR , GERBER KLAUS-DIETER , DIRKS BERND , BAUMANN PETER
CPC classification number: D21H23/14 , D21H17/29 , D21H17/375 , D21H17/455 , D21H17/56 , D21H17/68
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公开(公告)号:CA2286709A1
公开(公告)日:1998-10-22
申请号:CA2286709
申请日:1998-04-02
Applicant: BASF AG
Inventor: MELZER JAROSLAV , MEIXNER HUBERT , LINHART FRIEDRICH
Abstract: The invention relates to a method for producing, paper, pulpboard and cardboard from paper pulp containing sticky impurities by adding surfactants and cationic polymers with a load density of at least 1.5 meq/g (measured at pH 7) and a cationic polymer molar mass Mw of at least 15,000, and by dehydrating the pulp and fixing the sticky impurities in the finished paper.
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公开(公告)号:ES2119491T3
公开(公告)日:1998-10-01
申请号:ES95935455
申请日:1995-10-17
Applicant: BASF AG
Inventor: LINHART FRIEDRICH , STANGE ANDREAS , SCHUHMACHER RUDOLF , HARTMANN HEINRICH , DENZINGER WALTER , NIESSNER MANFRED
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公开(公告)号:DE59308829D1
公开(公告)日:1998-09-03
申请号:DE59308829
申请日:1993-11-16
Applicant: BASF AG
Inventor: SCHERR GUENTER , REUTHER WOLFGANG , LORENCAK PRIMOZ , MOENCH DIETMAR , LINHART FRIEDRICH , WEISER JUERGEN
IPC: C08G69/48 , C08G18/32 , C08G18/60 , C08G59/14 , C08G73/00 , C08G73/02 , C08G73/04 , D21F1/66 , D21H11/14 , D21H17/46 , D21H17/54 , D21H17/56 , D21H21/10
Abstract: PCT No. PCT/EP93/03205 Sec. 371 Date May 26, 1995 Sec. 102(e) Date May 26, 1995 PCT Filed Nov. 16, 1993 PCT Pub. No. WO94/12560 PCT Pub. Date Jun. 9, 1994.Condensates of polyalkylenepolyamines which are obtainable by (a) partial amidation of polyalkylenepolyamines and (b) condensation of the partially amidated polyalkylenepolyamines with bifunctional or polyfunctional crosslinking agents to give crosslinked polyalkylenepolyamines which, in 20% strength aqueous solution at 20 DEG C., have a viscosity of at least 100 mPa.s, processes for the preparation of the condensates of polyalkylenepolyamines by partial amidation of polyalkylenepolyamines with carboxylic acids, carboxylic esters, carboxylic anhydrides or carbonyl halides and crosslinking of the partially amidated polyalkylenepolyamines with bifunctional or polyfunctional crosslinking agents, from 0.001 to 10 parts by weight of a crosslinking agent being used per part by weight of the partially amidated polyalkylenepolyamines, and the use of the resulting condensates as drainage aids, flocculants, retention aids and fixing agents in papermaking.
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公开(公告)号:CA2258569A1
公开(公告)日:1998-01-15
申请号:CA2258569
申请日:1997-07-07
Applicant: BASF AG
Inventor: M NCH DIETMAR , GERBER KLAUS-DIETER , BAUMANN PETER , DIRKS BERND , DYLLICK-BRENZINGER RAINER , MEIXNER HUBERT , LINHART FRIEDRICH
Abstract: The invention relates to a process for producing paper and cardboard by dehydration of pulps, forming sheets and drying said sheets. Polyethylene imines of a molar mass Mw of greater than 500 000 or polymers containing vinyl amine units and having a molar mass of 5000 to 3 million are added to the pulps and subsequently, polymers containing cationic polyacrylic amides or vinyl amine units are added to said pulps, the molar masses Mw of the polymers being at least 4 million in each case. The pulp is then subjected to at least one shearing stage and flocculates by addition of bentonite, colloidal silicic acid or clay.
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公开(公告)号:DE59306701D1
公开(公告)日:1997-07-10
申请号:DE59306701
申请日:1993-12-16
Applicant: BASF AG
Inventor: SCHERR GUENTER , REUTHER WOLFGANG , MOENCH DIETMAR , LINHART FRIEDRICH , WEISER JUERGEN
IPC: C08G18/58 , C08G18/60 , C08G59/14 , C08G59/40 , C08G73/00 , C08G73/02 , D21H17/55 , D21H17/56 , D21H21/10
Abstract: PCT No. PCT/EP93/03573 Sec. 371 Date Jun. 26, 1995 Sec. 102(e) Date Jun. 26, 1995 PCT Filed Dec. 16, 1993 PCT Pub. No. WO94/14873 PCT Pub. Date Jul. 7, 1994There are described water-soluble condensation products of amino-containing compounds and crosslinkers, obtainable by reacting (a) polyalkylenepolyamines, polyamidoamines, ethylene-imine-grafted polyamidoamines, polyetheramines and mixtures thereof, with (b) monethylenically unsaturated carboxylic acids, salts, esters, amides or nitriles of monoethylenically unsaturated carboxylic acids, chlorocarboxylic acids and/or glycidyl compounds such as glycidic acid, glycidamide or glycidyl esters, and (c) at least bifunctional crosslinkers having a halo-hydrin, glycidyl, aziridine or isocyanate unit or a halogen atom as functional group, to form water-soluble condensation products having a viscosity of at least 100 mPas in a 20% strength by weight aqueous solution at 20 DEG C., processes for preparing the water-soluble condensation products by reacting the abovementioned compounds of groups (a), (b) and (c), and the use of the condensation products as drainage, flocculation and retention aids in papermaking.
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公开(公告)号:AU672464B2
公开(公告)日:1996-10-03
申请号:AU5627494
申请日:1993-11-25
Applicant: BASF AG
Inventor: NILZ CLAUDIA , DENZINGER WALTER , HARTMANN HEINRICH , KROENER MICHAEL , LINHART FRIEDRICH , SCHUHMACHER RUDOLF , MOENCH DIETMAR , STANGE ANDREAS
IPC: C08F220/04 , C08F8/12 , C08F26/00 , C08F226/02 , D21H17/34 , D21H17/37 , D21H17/43 , D21H17/45 , D21H21/10 , D21H21/18
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公开(公告)号:CA2171725A1
公开(公告)日:1995-04-20
申请号:CA2171725
申请日:1994-10-06
Applicant: BASF AG
Inventor: AUHORN WERNER , WEISER JUERGEN , LINHART FRIEDRICH , MOENCH DIETMAR , LORENCAK PRIMOZ
Abstract: Aqueous pigment slurries which contain up to 80 % by weight of a finely divided pigment in dispersed form and from 0.1 to 5 % by weight of a polyalkylenepolyamine having a molecular weight of at least 300 or water-soluble reaction products of (a) polyalkylenepolyamines having a molecular weight of at least 300 and/or polyamidoamines grafted with ethyleneimine and (b) bifunctional or polyfunctional crosslinking agents which have a halohydrin, glycidyl, aziridine or isocyanate unit or a halogen atom as a functional group, the reaction products, in 25 % strength by weight aqueous solution at 20.degree.C, having a viscosity of at least 100 mPa.s, are used as an additive to the paper stock in the production of fillercontaining paper.
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公开(公告)号:DE59103923D1
公开(公告)日:1995-01-26
申请号:DE59103923
申请日:1991-06-25
Applicant: BASF AG
Inventor: LORENCAK PRIMOZ , LINHART FRIEDRICH , BOECKH DIETER , HARTMANN HEINRICH
IPC: D21C5/02
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公开(公告)号:AT115660T
公开(公告)日:1994-12-15
申请号:AT91911822
申请日:1991-06-25
Applicant: BASF AG
Inventor: LORENCAK PRIMOZ , LINHART FRIEDRICH , BOECKH DIETER , HARTMANN HEINRICH
IPC: D21C5/02
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