公开(公告)号：NO910283D0

公开(公告)日：1991-01-24

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 ,  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：NO904954A

公开(公告)日：1990-11-15

申请号：NO904954

申请日：1990-11-15

Applicant: BASF AG

Inventor： MOENCH DIETMAR ,  HARTMANN HEINRICH ,  FREUDENBERG ENRIQUE ,  STANGE ANDREAS

IPC: D21H20060101 ,  D21H17/45 ,  D21H21/10

公开(公告)号：FI95943C

公开(公告)日：1996-04-10

申请号：FI905661

申请日：1990-11-15

Applicant: BASF AG

Inventor： MOENCH DIETMAR ,  HARTMANN HEINRICH ,  FREUDENBERG ENRIQUE ,  STANGE ANDREAS

IPC: D21H17/34 ,  D21H17/45 ,  D21H21/06 ,  D21H21/10

公开(公告)号：PT93472B

公开(公告)日：1996-03-29

申请号：PT9347290

申请日：1990-03-16

Applicant: BASF AG

Inventor： HARTMANN HEINRICH ,  STANGE ANDREAS ,  MOENCH DIETMAR ,  FREUDENBERG ENRIQUE

IPC: D21H17/34 ,  D21H17/45 ,  D21H21/06 ,  D21H21/10

Abstract: PCT No. PCT/EP90/00406 Sec. 371 Date Dec. 4, 1990 Sec. 102(e) Date Dec. 4, 1990 PCT Filed Mar. 14, 1990 PCT Pub. No. WO90/11404 PCT Pub. Date Oct. 4, 1990.Paper, board and cardboard are produced by draining a paper stock in the presence of a nonhydrolyzed copolymer which contains, as polymerized units, (a) from 99 to 1 mol % of N-vinylformamide and (b) from 1 to 99 mol % of one or more water-soluble basic monomers of the formula (I) or (II) where R1 is H, CH3 or C2H5, R2, R3 and R4 are each H, CH3, C2H5 or (-CH2-CH2-O-)nH, R5 and R6 are each C1-C10-alkyl, A is C1-C6-alkylene, n is from 1 to 6 and Y(-) is an anion, in an amount of from 0.01 to 3.5% by weight, based on dry paper stock.

公开(公告)号：NO175383C

公开(公告)日：1994-10-05

申请号：NO904954

申请日：1990-11-15

Applicant: BASF AG

Inventor： MOENCH DIETMAR ,  HARTMANN HEINRICH ,  FREUDENBERG ENRIQUE ,  STANGE ANDREAS

IPC: D21H20060101 ,  D21H17/45 ,  D21H21/10

公开(公告)号：NO175383B

公开(公告)日：1994-06-27

申请号：NO904954

申请日：1990-11-15

Applicant: BASF AG

Inventor： MOENCH DIETMAR ,  HARTMANN HEINRICH ,  FREUDENBERG ENRIQUE ,  STANGE ANDREAS

IPC: D21H20060101 ,  D21H17/45 ,  D21H21/10

公开(公告)号：FI90527C

公开(公告)日：1994-02-25

申请号：FI882785

申请日：1988-06-10

Applicant: BASF AG

Inventor： FREUDENBERG ENRIQUE ,  WITTMER PETER ,  HOHMANN ANDREAS ,  BECHTOLSHEIMER HANS-HEINRICH

IPC: C07C51/00 ,  C07C51/60 ,  C07C51/64 ,  C07C53/42 ,  C07C67/00

公开(公告)号：ES2043361T3

公开(公告)日：1993-12-16

申请号：ES90904264

申请日：1990-03-14

Applicant: BASF AG

Inventor： MOENCH DIETMAR ,  HARTMANN HEINRICH ,  FREUDENBERG ENRIQUE ,  STANGE ANDREAS

IPC: D21H17/34 ,  D21H17/45 ,  D21H21/06 ,  D21H21/10

Abstract: PCT No. PCT/EP90/00406 Sec. 371 Date Dec. 4, 1990 Sec. 102(e) Date Dec. 4, 1990 PCT Filed Mar. 14, 1990 PCT Pub. No. WO90/11404 PCT Pub. Date Oct. 4, 1990.Paper, board and cardboard are produced by draining a paper stock in the presence of a nonhydrolyzed copolymer which contains, as polymerized units, (a) from 99 to 1 mol % of N-vinylformamide and (b) from 1 to 99 mol % of one or more water-soluble basic monomers of the formula (I) or (II) where R1 is H, CH3 or C2H5, R2, R3 and R4 are each H, CH3, C2H5 or (-CH2-CH2-O-)nH, R5 and R6 are each C1-C10-alkyl, A is C1-C6-alkylene, n is from 1 to 6 and Y(-) is an anion, in an amount of from 0.01 to 3.5% by weight, based on dry paper stock.

公开(公告)号：PT93472A

公开(公告)日：1990-11-07

申请号：PT9347290

申请日：1990-03-16

Applicant: BASF AG

Inventor： HARTMANN HEINRICH ,  STANGE ANDREAS ,  MOENCH DIETMAR ,  FREUDENBERG ENRIQUE

IPC: D21H17/34 ,  D21H17/45 ,  D21H21/06 ,  D21H21/10 ,  D21H17/20

Abstract: PCT No. PCT/EP90/00406 Sec. 371 Date Dec. 4, 1990 Sec. 102(e) Date Dec. 4, 1990 PCT Filed Mar. 14, 1990 PCT Pub. No. WO90/11404 PCT Pub. Date Oct. 4, 1990.Paper, board and cardboard are produced by draining a paper stock in the presence of a nonhydrolyzed copolymer which contains, as polymerized units, (a) from 99 to 1 mol % of N-vinylformamide and (b) from 1 to 99 mol % of one or more water-soluble basic monomers of the formula (I) or (II) where R1 is H, CH3 or C2H5, R2, R3 and R4 are each H, CH3, C2H5 or (-CH2-CH2-O-)nH, R5 and R6 are each C1-C10-alkyl, A is C1-C6-alkylene, n is from 1 to 6 and Y(-) is an anion, in an amount of from 0.01 to 3.5% by weight, based on dry paper stock.

公开(公告)号：BR8802859A

公开(公告)日：1989-01-03

申请号：BR8802859

申请日：1988-06-10

Applicant: BASF AG

Inventor： FREUDENBERG ENRIQUE ,  WITTMER PETER ,  HOHMANN ANDREAS ,  BECHTOLSHEIMER HANS-HEINRICH

IPC: C07C51/00 ,  C07C51/60 ,  C07C51/64 ,  C07C53/42 ,  C07C67/00 ,  C07C51/41