公开(公告)号：DE59501380D1

公开(公告)日：1998-03-05

申请号：DE59501380

申请日：1995-03-20

Applicant: BASF AG

Inventor： NILZ CLAUDIA ,  WINTER MANFRED ,  KROENER MICHAEL ,  STANGE ANDREAS ,  SCHUHMACHER RUDOLF

IPC: C08F8/12 ,  D21H17/34 ,  D21H21/18 ,  D21H21/20

Abstract: PCT No. PCT/EP95/01030 Sec. 371 Date Sep. 30, 1996 Sec. 102(e) Date Sep. 30, 1996 PCT Filed Mar. 20, 1995 PCT Pub. No. WO95/26989 PCT Pub. Date Oct. 12, 1995Solutions of polymers containing vinylamine units, which solutions have a long shelf life, are prepared by hydrolyzing polymers containing N-vinylcarboxamide units with acids in an aqueous medium and removing the carboxylic acids eliminated from the polymers as esters from the aqueous polymer solution after the hydrolysis by adding at least stoichiometric amounts of at least one C1-C6-alcohol and distilling off the esters from the reaction mixture, and said aqueous solutions are used as dry and wet strength agents in papermaking.

公开(公告)号：AT162811T

公开(公告)日：1998-02-15

申请号：AT95912254

申请日：1995-03-20

Applicant: BASF AG

Inventor： NILZ CLAUDIA ,  WINTER MANFRED ,  KROENER MICHAEL ,  STANGE ANDREAS ,  SCHUHMACHER RUDOLF

IPC: C08F8/12 ,  D21H17/34 ,  D21H21/18 ,  D21H21/20

Abstract: PCT No. PCT/EP95/01030 Sec. 371 Date Sep. 30, 1996 Sec. 102(e) Date Sep. 30, 1996 PCT Filed Mar. 20, 1995 PCT Pub. No. WO95/26989 PCT Pub. Date Oct. 12, 1995Solutions of polymers containing vinylamine units, which solutions have a long shelf life, are prepared by hydrolyzing polymers containing N-vinylcarboxamide units with acids in an aqueous medium and removing the carboxylic acids eliminated from the polymers as esters from the aqueous polymer solution after the hydrolysis by adding at least stoichiometric amounts of at least one C1-C6-alcohol and distilling off the esters from the reaction mixture, and said aqueous solutions are used as dry and wet strength agents in papermaking.

公开(公告)号：CA2247052A1

公开(公告)日：1997-09-04

申请号：CA2247052

申请日：1997-02-20

Applicant: BASF AG

Inventor： RUEBENACKER MARTIN ,  SCHUHMACHER RUDOLF ,  NIESSNER MANFRED ,  UTECHT JENS ,  NILZ CLAUDIA

IPC: C08F8/12 ,  C08F26/02 ,  D21H17/34 ,  D21H17/37 ,  D21H17/45 ,  D21H21/18

Abstract: Proposed is the use, as agents for increasing the dry strength of paper, card and cardboard, of partially hydrolysed polymers of N-vinyl carboxylic acid amides obtained by the homopolymerization of N-vinyl carboxylic acid amides of the formula (I) in which R1 and R2 are H or C1-C6 alkyl and by splitting off 0.5 to 95 mole % of the groups of the formula (II) in which R1 is H or C1-C6 alkyl.

公开(公告)号：ES2088316T3

公开(公告)日：1996-08-01

申请号：ES94901873

申请日：1993-11-25

Applicant: BASF AG

Inventor： NILZ CLAUDIA ,  DENZINGER WALTER ,  HARTMANN HEINRICH ,  KROENER MICHAEL ,  LINHART FRIEDRICH ,  SCHUHMACHER RUDOLF

IPC: C08F220/04 ,  C08F8/12 ,  C08F26/00 ,  C08F226/02 ,  D21H17/34 ,  D21H17/37 ,  D21H17/43 ,  D21H17/45 ,  D21H21/10 ,  D21H21/18

公开(公告)号：CA2203931A1

公开(公告)日：1996-05-09

申请号：CA2203931

申请日：1995-10-17

Applicant: BASF AG

Inventor： REUTHER WOLFGANG ,  DENZINGER WALTER ,  NILZ CLAUDIA ,  SCHUHMACHER RUDOLF ,  LINHART FRIEDRICH ,  HARTMANN HEINRICH ,  MEIXNER HUBERT ,  NIESSNER MANFRED ,  STANGE ANDREAS

IPC: C08B31/00 ,  C08L3/02 ,  D21H17/29 ,  D21H21/18

Abstract: In a cationic modification process for starch, starch is reacted with polymers that contain amino and/or ammonium groups in an aqueous medium at temperatures from 115 to 180 ·C under an increased pressure and in the absence of oxidisers, polymerisation initiators and alkali. The reaction is conducted so that maximum 10% by weight starch has its molar weight reduced. Also disclosed is the use of the thus obtained reaction products as dry strength agents for paper.

公开(公告)号：ES2084512T3

公开(公告)日：1996-05-01

申请号：ES93920764

申请日：1993-09-18

Applicant: BASF AG

Inventor： SCHUHMACHER RUDOLF ,  DRALLE-VOSS GABRIELE ,  OPPENLAENDER KNUT ,  WEGNER BRIGITTE

IPC: D21H17/14 ,  D21H19/44 ,  D21H21/12

公开(公告)号：FI952739A0

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：FI951455A0

公开(公告)日：1995-03-27

申请号：FI951455

申请日：1995-03-27

Applicant: BASF AG

Inventor： SCHUHMACHER RUDOLF ,  DRALLE-VOSS GABRIELE ,  OPPENLAENDER KNUT ,  WEGNER BRIGITTE

IPC: D21H17/14 ,  D21H19/44 ,  D21H21/12 ,  D21H ,  B01D

公开(公告)号：AU5627494A

公开(公告)日：1994-07-04

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

公开(公告)号：FI923754A

公开(公告)日：1993-02-23

申请号：FI923754

申请日：1992-08-20

Applicant: BASF AG

Inventor： WEGNER BRIGITTE ,  OPPENLAENDER KNUT ,  SCHUHMACHER RUDOLF ,  HOHMANN ANDREAS ,  DRALLE-VOSS GABRIELE

IPC: C09K23/00 ,  B01J13/00 ,  C09K23/42 ,  D21C3/28 ,  D21D1/20 ,  D21H17/00 ,  D21H17/14 ,  D21H21/12

Abstract: In anti-foams for the paper industry, based on oil-in-water emulsions, the oil phase makes up 5 to 50 % by weight of the bulk of the emulsion and contains (a) an alcohol having at least 12 carbon atoms, fatty acid esters of alcohols having at least 22 carbon atoms and C1- to C36-carboxylic acids, distillation residues which are obtainable in the production of alcohols having a higher carbon number by oxo synthesis or by the Ziegler process and which may be alkoxylated, mixtures of the said compounds and/or (b) a fatty acid ester of C12- to C22-carboxylic acids with monohydric to trihydric C1- to C18-alcohols and, if appropriate, (c) a hydrocarbon having a boiling point above 200 DEG C or fatty acids having 12 to 22 carbon atoms in combination with (d) 1 to 80 % by weight of polyglycerol esters which can be prepared by an at least 20% esterification of polyglycerol mixtures which contain, as essential constituents, diglycerol, triglycerol, tetraglycerol and, if appropriate, more highly condensed polyglycerols, with saturated or unsaturated C12- to C36-fatty acids. i