公开(公告)号：FI910328A

公开(公告)日：1991-07-26

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.

公开(公告)号：CA2034869A1

公开(公告)日：1991-07-26

申请号：CA2034869

申请日：1991-01-24

Applicant: FREUDENBERG ENRIQUE ,  LINHART FRIEDRICH ,  TRESCH RAINER ,  HARTMANN HEINRICH ,  DENZINGER WALTER ,  KROENER MICHAEL ,  SENDHOFF NORBERT ,  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 ,  D21H17/45

Abstract: Paper, board and cardboard are produced from paper stocks containing foreign sub- stances by drainage in the presence of a polymer which contains, as typical polymerized constituents, units of the formulae where R1 and R2 are each H, C1-C3-alkyl, and which have K values of not less than 130, the polymers containing less than 10 mol % of units of the formula II.

公开(公告)号：CA2034135A1

公开(公告)日：1991-07-17

申请号：CA2034135

申请日：1991-01-14

Applicant: AUHORN WERNER ,  LINHART FRIEDRICH ,  LORENCAK PRIMOZ ,  KROENER MICHAEL ,  SENDHOFF NORBERT ,  DENZINGER WALTER ,  HARTMANN HEINRICH ,  BASF AG

Inventor： AUHORN WERNER ,  LINHART FRIEDRICH ,  LORENCAK PRIMOZ ,  KROENER MICHAEL ,  SENDHOFF NORBERT ,  DENZINGER WALTER ,  HARTMANN HEINRICH

IPC: C08F8/12 ,  D21H17/34 ,  D21H17/36

Abstract: Paper, board and cardboard are produced by draining a paper stock, containing un- desirable substances, in the presence of hydrolyzed homo- and/or copolymers of N-vinylformamide having a degree of hydrolysis of not less than 60% and a cationic retention aid. According to the invention, faster drainage and improved retention are obtained compared with the use of known fixing agents.

公开(公告)号：NO165300C

公开(公告)日：1991-01-23

申请号：NO854768

申请日：1985-11-28

Applicant: BASF AG

Inventor： BRUNNMUELLER FRITZ ,  KROENER MICHAEL ,  HARTMANN HEINRICH ,  LINHART FRIEDRICH ,  PFITZNER KLAUS

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

公开(公告)号：FI892364A

公开(公告)日：1989-12-22

申请号：FI892364

申请日：1989-05-17

Applicant: BASF AG

Inventor： HEMEL RALF ,  LINHART FRIEDRICH

IPC: G01N15/06 ,  C02F1/52 ,  G01N1/10 ,  G01N15/14 ,  G01N

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：CA1250696A

公开(公告)日：1989-02-28

申请号：CA496141

申请日：1985-11-25

Applicant: BASF AG

Inventor： BRUNNMUELLER FRITZ ,  KROENER MICHAEL ,  HARTMANN HEINRICH ,  LINHART FRIEDRICH ,  PFITZNER KLAUS

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

Abstract: Linear, basic polymer powders which contain units of the formula (I) and have a Fikentscher K value of from 10 to 200 are prepared by eliminating the formyl groups from N-vinylform-amide polymer powders with a gaseous hydrogen halide in the presence of not more than 5% by weight, based on the polymer used, of water.

公开(公告)号：AU578404B2

公开(公告)日：1988-10-20

申请号：AU6397786

申请日：1986-10-16

Applicant: BASF AG

Inventor： LORZ RUDOLF ,  LINHART FRIEDRICH ,  AUHORN WERNER ,  MATZ MANFRED

IPC: D21H17/34 ,  D21H17/37 ,  D21H17/45 ,  D21H17/46 ,  D21H17/55 ,  D21H17/56 ,  D21H17/67 ,  D21H17/68 ,  D21H21/10 ,  D21H23/76 ,  D21H3/02 ,  D21H3/58 ,  D21H3/70

公开(公告)号：NO158339C

公开(公告)日：1988-08-24

申请号：NO820960

申请日：1982-03-23

Applicant: BASF AG

Inventor： DEGEN HANS-JUERGEN ,  GUENDER WOLF ,  LINHART FRIEDRICH ,  AUHORN WERNER ,  FREY GUENTER ,  STREIT WERNER ,  FIKENTSCHER ROLF

IPC: C02F1/58 ,  B01D21/01 ,  B01D37/02 ,  C02F1/28 ,  C02F1/52 ,  C02F1/54

Abstract: A process for removing anionic compounds from water which is recycled in manufacturing processes, and from waste water, by adding (1) water-soluble products obtained by reacting an alkylating agent, having an aromatic substituent, with a cationic polyelectrolyte and (2) mineral adsorbents and/or a magnesium salt, aluminum salt or iron salt, with formation and flocculation of water-insoluble reaction products.

公开(公告)号：AU7418387A

公开(公告)日：1987-12-17

申请号：AU7418387

申请日：1987-06-12

Applicant: BASF AG

Inventor： LINHART FRIEDRICH ,  DEGEN HANS-JUERGEN ,  AUHORN WERNER ,  KROENER MICHAEL ,  HARTMANN HEINRICH ,  HEIDE WILFRIED

IPC: D21H17/23 ,  D21H17/34 ,  D21H17/37 ,  D21H17/47 ,  D21H17/55 ,  D21H23/76 ,  D21H3/38

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：FI872610A

公开(公告)日：1987-12-15

申请号：FI872610

申请日：1987-06-11

Applicant: BASF AG

Inventor： LINHART FRIEDRICH ,  DEGEN HANS-JUERGEN ,  AUHORN WERNER ,  KROENER MICHAEL ,  HARTMANN HEINRICH ,  HEIDE WILFRIED

IPC: D21H17/23 ,  D21H17/34 ,  D21H17/37 ,  D21H17/47 ,  D21H17/55 ,  D21H23/76 ,  D21H

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.