公开(公告)号：NZ225536A

公开(公告)日：1989-09-27

申请号：NZ22553688

申请日：1988-07-22

Applicant: BASF AG

Inventor： STANGE A ,  DEGEN H-J ,  AUHORN W ,  WEBERNDOERFER V ,  KROENER M ,  HARTMANN H

IPC: D21H17/34 ,  D21H17/28 ,  D21H17/45 ,  D21H21/18 ,  D21H3/28 ,  D21H3/38

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：NZ220553A

公开(公告)日：1989-01-06

申请号：NZ22055387

申请日：1987-06-04

Applicant: BASF AG

Inventor： LINHART F ,  DEGEN H-J ,  AUHORN W ,  KROENER M ,  HARTMANN H ,  HEIDE W

IPC: D21H17/23 ,  D21H17/34 ,  D21H17/37 ,  D21H17/47 ,  D21H17/55 ,  D21H23/76 ,  D21D3/00 ,  D21H3/36

Abstract: Paper, board and cardboard are produced by draining a pulp slurry in the presence of high molecular weight, water-soluble polymers of N-vinylamides as drainage aids, retention agents and flocculants. These polymers are particularly effective in a pulp slurry which has a high content of interfering substances and other phenolic compounds.

公开(公告)号：NZ215254A

公开(公告)日：1989-02-24

申请号：NZ21525486

申请日：1986-02-21

Applicant: BASF AG

Inventor： PFOHL S ,  HARTMANN H ,  FREY G ,  KROENER M ,  GUTH K

IPC: C08L33/02 ,  C08L33/00 ,  C08L33/18 ,  C08L33/20 ,  C08L33/24 ,  C08L33/26 ,  D21H17/34 ,  D21H17/37 ,  D21H17/43 ,  D21H17/45 ,  D21H21/20 ,  D21D3/00 ,  D21H3/38

公开(公告)号：DK321382A

公开(公告)日：1983-01-19

申请号：DK321382

申请日：1982-07-16

Applicant: BASF AG

Inventor： BRUNNMUELLER F ,  SCHNEIDER R ,  KROENER M ,  MUELLER H ,  BURKERT H ,  BEYER K-H

IPC: C08F8/00 ,  C08F226/02 ,  D21C9/18 ,  D21H17/34 ,  D21H17/45 ,  C08F

公开(公告)号：NZ219167A

公开(公告)日：1989-02-24

申请号：NZ21916787

申请日：1987-02-04

Applicant: BASF AG

Inventor： KROENER M ,  SCHMIDT W ,  OFTRING A ,  PROLL T ,  HARTMANN H

IPC: C07C231/24 ,  C07C67/00 ,  C07C231/00 ,  C07C233/00 ,  C07C233/03 ,  C07C233/15 ,  C08F26/00 ,  C08F126/02 ,  C07C103/365 ,  C07C102/00 ,  C08F20/54

公开(公告)号：NZ223534A

公开(公告)日：1989-10-27

申请号：NZ22353488

申请日：1988-02-16

Applicant: BASF AG

Inventor： DEGEN H-J ,  PFOHL S ,  WEBERNDOERFER V ,  REHMER G ,  KROENER M ,  STANGE A

IPC: D21H17/34 ,  D21H17/28 ,  D21H17/29 ,  D21H17/37 ,  D21H17/45 ,  D21H17/56 ,  D21H21/18 ,  D21D3/00 ,  D21H3/28 ,  D21H3/38

Abstract: Paper and paperboard of high dry strength are produced by adding a dry strength enhancer to the paper stock and dewatering the paper stock with sheet formation by using as the dry strength enhancer a mixture of a cationic polymer which contains as characteristic monomers copolymerized units of (a) diallyldimethylammonium chloride, (b) N-vinylamine or (c) a substituted or unsubstituted N-vinylimidazoline and has a K value of not less than 30, and natural potato starch which is converted into a water-soluble form by heating in an aqueous medium at above the gelatinization temperature of natural potato starch in the absence of any oxidizing agents or alkali.

公开(公告)号：NZ214359A

公开(公告)日：1988-02-29

申请号：NZ21435985

申请日：1985-11-28

Applicant: BASF AG

Inventor： BRUNNMUELLER F ,  KROENER M ,  HARTMANN H ,  LINHART F ,  PFITZNER K

IPC: C08F8/00 ,  C08F8/12 ,  C08F26/00 ,  C08F26/02