公开(公告)号：FI952739A

公开(公告)日：1995-06-05

申请号：FI952739

申请日：1995-06-05

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 ,  D21H ,  C08F

公开(公告)号：FI931642A

公开(公告)日：1993-04-13

申请号：FI931642

申请日：1993-04-13

Applicant: BASF AG

Inventor： KROENER MICHAEL ,  NILZ CLAUDIA ,  SENDHOFF NORBERT ,  STANGE ANDREAS ,  DE CLERCQ ARNOLD ,  RIEBLING ULRICH

IPC: D21H17/34 ,  D21H17/45 ,  D21H17/62 ,  D21H21/16

公开(公告)号：NO172402B

公开(公告)日：1993-04-05

申请号：NO883274

申请日：1988-07-22

Applicant: BASF AG

Inventor： STANGE ANDREAS ,  DEGEN HANS-JUERGEN ,  AUHORN WERNER ,  WEBERNDOERFER VOLKMAR ,  KROENER MICHAEL ,  HARTMAN HEINRICH

IPC: D21H17/34 ,  D21H17/28 ,  D21H17/45 ,  D21H21/18

Abstract: In the process, an agent which confers dry strength and can be obtained by mixing enzymatically degraded starch having a viscosity of 20 to 2,000 m Pa.s (determined on a 7.5% strength solution in water at 45 DEG C) with cationic polymers which contain, in copolymerised form,… a) diallyldimethylammonium chloride… b) N-vinylamine or… c) optionally substituted N-vinylimidazolines as characteristic monomers, the K-value of the cationic polymers being at least 30, is added to the paper stock and the stock is dewartered, during sheet formation.

公开(公告)号：ES2024596B3

公开(公告)日：1992-03-01

申请号：ES88111572

申请日：1988-07-19

Applicant: BASF AG

Inventor： STANGE ANDREAS ,  DEGEN HANS-JUERGEN ,  AUHORN WERNER ,  WEBERNDOERFER VOLKMAR ,  KROENER MICHAEL ,  HARTMANN HEINRICH

IPC: D21H17/34 ,  D21H17/28 ,  D21H17/45 ,  D21H21/18

公开(公告)号：FI85137B

公开(公告)日：1991-11-29

申请号：FI854623

申请日：1985-11-22

Applicant: BASF AG

Inventor： BRUNNMUELLER FRITZ ,  KROENER MICHAEL ,  GOETZE WALTER ,  SCHMIDT WILLI

IPC: C07B61/00 ,  C07C67/00 ,  C07C231/00 ,  C07C231/06 ,  C07C231/08 ,  C07C231/12 ,  C07C233/03

公开(公告)号：CA1287945C

公开(公告)日：1991-08-20

申请号：CA518525

申请日：1986-09-18

Applicant: BASF AG

Inventor： PFOHL SIGBERG ,  KROENER MICHAEL ,  HARTMANN HEINRICH ,  DENZINGER WALTER

IPC: C08F8/12 ,  C08F16/16 ,  C08F18/02 ,  C08F20/52 ,  C08F26/00 ,  C08F26/06 ,  C08F216/16 ,  C08F216/18 ,  C08F218/02 ,  C08F218/04 ,  C08F218/08 ,  C08F218/10 ,  C08F220/00 ,  C08F220/02 ,  C08F220/10 ,  C08F220/18 ,  C08F220/42 ,  C08F220/56 ,  C08F226/02 ,  C08F226/10 ,  D21H17/34 ,  D21H17/36 ,  D21H17/37 ,  D21H17/45 ,  D21H21/18

Abstract: Water-soluble copolymers containing copolymerized vinylamine units are prepared by copolymerizing a) from 95 to 10 mol% of N-vinylform-amide and b) from 5 to 90 mol% of an ethylenically unsaturated monomer from the group consisting of vinyl acetate, vinyl propionate, C1-C4-alkyl vinyl ethers, the esters, nitriles and amides of acrylic acid and methacrylic acid and N-vinylpyrrolidone, and then eliminating from 30 to 100 mol% of the formyl groups from the copolymer. Preferred copolymers are copolymers of N-vinyl-formamide and vinyl acetate, in which from 30 to 100 mol% of the monomer units are hydrolyzed. The copolymers are used in papermaking to increase the dry strength and wet strength of the paper.

公开(公告)号：NO910283A

公开(公告)日：1991-07-26

申请号：NO910283

申请日：1991-01-24

Applicant: BASF AG

Inventor： FREUDENBERG ENRIQUE ,  LINHART FRIEDRICH ,  TRESCH RAINER ,  HARTMANN HEINRICH ,  DENZINGER WALTER ,  KROENER MICHAEL ,  SENDHOFF NORBERT

IPC: D21H21/04 ,  D21H17/34 ,  D21H17/37 ,  D21H17/41 ,  D21H21/10 ,  D21H27/00

CPC classification number: D21H17/34

公开(公告)号：DK161099B

公开(公告)日：1991-05-27

申请号：DK321382

申请日：1982-07-16

Applicant: BASF AG

Inventor： BRUNNMUELLER FRITZ ,  SCHNEIDER ROLF ,  KROENER MICHAEL ,  MUELLER HANS ,  LINHART FRIEDRICH ,  BURKERT HANS ,  BEYER KARL-HEINZ

IPC: C08F8/00 ,  C08F226/02 ,  D21C9/18 ,  D21H17/34 ,  D21H17/45 ,  C08F126/02 ,  B01D21/01 ,  C02F11/14 ,  D21H17/55

公开(公告)号：NO166233B

公开(公告)日：1991-03-11

申请号：NO863833

申请日：1986-09-25

Applicant: BASF AG

Inventor： PFOHL SIGBERG ,  KROENER MICHAEL ,  HARTMANN HEINRICH ,  DENZINGER WALTER

IPC: C08F8/12 ,  C08F16/16 ,  C08F18/02 ,  C08F20/52 ,  C08F26/00 ,  C08F26/06 ,  C08F216/16 ,  C08F216/18 ,  C08F218/02 ,  C08F218/04 ,  C08F218/08 ,  C08F218/10 ,  C08F220/00 ,  C08F220/02 ,  C08F220/10 ,  C08F220/18 ,  C08F220/42 ,  C08F220/56 ,  C08F226/02 ,  C08F226/10 ,  D21H17/34 ,  D21H17/36 ,  D21H17/37 ,  D21H17/45 ,  D21H21/18 ,  C08F226/00

Abstract: Water-soluble copolymers containing copolymerized vinylamine units are prepared by copolymerizing (a) from 95 to 10 mol % of N-vinylformamide and (b) from 5 to 90 mol % of an ethylenically unsaturated monomer from the group consisting of vinyl acetate, vinyl propionate, C1-C4-alkyl vinyl ethers, the esters, nitriles and amides of acrylic acid and methacrylic acid and N-vinylpyrrolidone, and then eliminating from 30 to 100 mol % of the formyl groups from the copolymer. Preferred copolymers are copolymers of N-vinylformamide and vinyl acetate, in which from 30 to 100 mol % of the monomer units are hydrolyzed. The copolymers are used in papermaking to increase the dry strength and wet strength of the paper.

公开(公告)号：FI910328A0

公开(公告)日：1991-01-22

申请号：FI910328

申请日：1991-01-22

Applicant: BASF AG

Inventor： FREUDENBERG ENRIQUE ,  LINHART FRIEDRICH ,  TRESCH RAINER ,  HARTMANN HEINRICH ,  DENZINGER WALTER ,  KROENER MICHAEL ,  SENDHOFF NORBERT

IPC: D21H21/04 ,  D21H17/34 ,  D21H17/37 ,  D21H17/41 ,  D21H21/10 ,  D21H27/00 ,  D21H

Abstract: In a process for making paper, paperboard and cardboard, paper pulps containing interfering materials are dehydrated in the presence of polymers which, as characteristic constituents, contain copolymerised units of the formulae … … with R and R = H or C1- to C3-alkyl, and have K values of at least 130, the polymers containing less than 10 mol% of units of formula II.