公开(公告)号：EP0951505B1

公开(公告)日：2002-04-24

申请号：EP98901973.2

申请日：1998-01-16

Applicant: BASF AKTIENGESELLSCHAFT

Inventor： NIESSNER, Manfred ,  NILZ, Claudia ,  LORENCAK, Primoz ,  RÜBENACKER, Martin ,  ETTL, Roland

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

CPC classification number: D21H17/29 ,  C08L3/00 ,  D21H21/10 ,  D21H21/18 ,  C08L2666/02

Abstract: The present invention relates to a starch which is modified with at least one cationic polymer and a method for its production, which is characterized in that dry, pourable starch is laid out and the cationic polymer is applied over it without causing the starch particles to stick. The invention further relates to the use of said polymer-modified starches.

公开(公告)号：EP0897395B1

公开(公告)日：2001-08-16

申请号：EP97922941.6

申请日：1997-05-02

Applicant: BASF AKTIENGESELLSCHAFT

Inventor： UTECHT, Jens ,  NIESSNER, Manfred ,  MÖNCH, Dietmar ,  RÜBENACKER, Martin

IPC: C08F8/00 ,  C02F1/56 ,  D21C9/18

CPC classification number: D21H21/10 ,  C08F8/00 ,  C08F26/02

Abstract: Polymers containing β-hydroxy alkyl vinyl amine units obtainable by the reaction of polymers containing vinyl amine units with epoxides of formula (IV) in which R = C2 to C28 alkyl, C1 to C18 alkyl phenyl or C2 to C18 alkenyl, a process for producing the polymers and their use as retention, dewatering and flocullents and as fixers in paper production, a protective colloid in the production of alkyl diketene dispersions or alkenyl succinic acid anhydride dispersions, as emulsifiers in the production of aqueous filler sludges and as corrosion inhibitors.

公开(公告)号：EP1117701A1

公开(公告)日：2001-07-25

申请号：EP99942857.6

申请日：1999-08-11

Applicant: BASF AKTIENGESELLSCHAFT

Inventor： NIESSNER, Manfred ,  RÜBENACKER, Martin ,  MAHR, Norbert

IPC: C08F6/00

CPC classification number: C08F6/006 ,  C08L39/00

Abstract: The invention relates to a method for eliminating formamide from polymerizates containing N-vinyl formamide units by treating polymerizates which contain formamide and which comprise 1 to 2 molar equivalents of an acid or of a base with regard to 1 molar equivalent of formamide under reaction conditions in which the N-vinyl formamide units are virtually unhydrolyzed in the polymerizate.

公开(公告)号：EP0897395A1

公开(公告)日：1999-02-24

申请号：EP97922941.0

申请日：1997-05-02

Applicant: BASF AKTIENGESELLSCHAFT

Inventor： UTECHT, Jens ,  NIESSNER, Manfred ,  MÖNCH, Dietmar ,  RÜBENACKER, Martin

IPC: B01D21 ,  C08F8 ,  D21H17 ,  D21H21

CPC classification number: D21H21/10 ,  C08F8/00 ,  C08F26/02

Abstract: Polymers containing β-hydroxy alkyl vinyl amine units obtainable by the reaction of polymers containing vinyl amine units with epoxides of formula (IV) in which R = C2 to C28 alkyl, C1 to C18 alkyl phenyl or C2 to C18 alkenyl, a process for producing the polymers and their use as retention, dewatering and flocullents and as fixers in paper production, a protective colloid in the production of alkyl diketene dispersions or alkenyl succinic acid anhydride dispersions, as emulsifiers in the production of aqueous filler sludges and as corrosion inhibitors.

公开(公告)号：EP0885180A1

公开(公告)日：1998-12-23

申请号：EP97914187.0

申请日：1997-03-04

Applicant: BASF AKTIENGESELLSCHAFT

Inventor： AUMÜLLER, Alexander ,  KOCH, Andreas ,  SUTORIS, Heinz, Friedrich ,  DUPUIS, Jacques ,  NIESSNER, Manfred

IPC: C07B63 ,  C07C41 ,  C07C231 ,  C07C233 ,  C07D207 ,  C07D211 ,  C07D227 ,  C08F16 ,  C08F18 ,  C08F20 ,  C08F26

CPC classification number: C07D207/27 ,  C07B63/04 ,  C07C41/46 ,  C07D211/94 ,  C07D227/087 ,  C07C43/16

Abstract: The invention concerns a monomer composition comprising: A) monomers which contain vinyl groups and in which a heteroatom selected from the group comprising halogens, nitrogen, oxygen, sulphur or silicon is present on the vinyl group; and B) at least one N-oxyl compound of a secondary amine which does not carry any hydrogen atoms on the α-C atoms, in an amount which is effective as a stabilizer against premature polymerization.

公开(公告)号：EP0885180B1

公开(公告)日：2007-04-11

申请号：EP97914187.6

申请日：1997-03-04

Applicant: BASF Aktiengesellschaft

Inventor： AUMÜLLER, Alexander ,  KOCH, Andreas ,  SUTORIS, Heinz, Friedrich ,  DUPUIS, Jacques ,  NIESSNER, Manfred

IPC: C07B63/04 ,  C07C231/22 ,  C07C17/42 ,  C07C41/46 ,  C07C67/62 ,  C07D201/18 ,  C07D207/267 ,  C07D223/10

CPC classification number: C07D207/27 ,  C07B63/04 ,  C07C41/46 ,  C07D211/94 ,  C07D227/087 ,  C07C43/16

Abstract: The invention concerns a monomer composition comprising: A) monomers which contain vinyl groups and in which a heteroatom selected from the group comprising halogens, nitrogen, oxygen, sulphur or silicon is present on the vinyl group; and B) at least one N-oxyl compound of a secondary amine which does not carry any hydrogen atoms on the α-C atoms, in an amount which is effective as a stabilizer against premature polymerization.

公开(公告)号：EP0952988A1

公开(公告)日：1999-11-03

申请号：EP98905305.0

申请日：1998-01-16

Applicant: BASF AKTIENGESELLSCHAFT

Inventor： NIESSNER, Manfred ,  NILZ, Claudia ,  LORENCAK, Primoz ,  RÜBENACKER, Martin ,  ETTL, Roland

IPC: C08B30 ,  C08B31 ,  C08L3 ,  C08L29 ,  C08L33 ,  C08L39 ,  D21H17 ,  D21H21

CPC classification number: D21H17/28 ,  C08B30/12 ,  C08B31/00 ,  C08L3/00 ,  C08L3/04 ,  C08L29/04 ,  D21H21/10 ,  D21H21/18 ,  C08L2666/02 ,  C08L2666/26

Abstract: The present invention relates to starch which is modified with at least one cationic polymer (P), and a method for producing same which is characterized in that: a) an anionically modified starch (A) is reacted with the cationic polymer (P); or that (b) a native starch (B) or a non-anionically modified starch (C) is reacted with the cationic polymer (P) in the presence of an anionic modifier (M). The invention also relates to the use of said polymer-modified starches.

公开(公告)号：EP0883712A1

公开(公告)日：1998-12-16

申请号：EP97903333.0

申请日：1997-02-20

Applicant: BASF AKTIENGESELLSCHAFT

Inventor： NIESSNER, Manfred ,  NILZ, Claudia ,  UTECHT, Jens ,  RÜBENACKER, Martin ,  SCHUHMACHER, Rudolf

IPC: C08F8 ,  C08F26 ,  D21H17 ,  D21H21

CPC classification number: D21H21/18 ,  C08F8/44 ,  D21H17/37 ,  C08F8/12 ,  C08F126/02

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 R?1 and R2¿ are H or C¿1?-C6 alkyl and by splitting off 0.5 to 95 mole % of the groups of the formula (II) in which R?1¿ is H or C¿1?-C6 alkyl.

公开(公告)号：EP0772639B1

公开(公告)日：1998-10-14

申请号：EP95926871.5

申请日：1995-07-13

Applicant: BASF AKTIENGESELLSCHAFT

Inventor： NIESSNER, Manfred ,  WEISS, Wolfram ,  TROPSCH, Jürgen ,  KUMMER, Matthias ,  MEICHSNER, Georg

IPC: C08G12/42

CPC classification number: C08G12/427

公开(公告)号：EP0788516B1

公开(公告)日：1998-07-29

申请号：EP95935455.6

申请日：1995-10-17

Applicant: BASF AKTIENGESELLSCHAFT

Inventor： LINHART, Friedrich ,  STANGE, Andreas ,  SCHUHMACHER, Rudolf ,  HARTMANN, Heinrich ,  DENZINGER, Walter ,  NIESSNER, Manfred ,  NILZ, Claudia ,  REUTHER, Wolfgang ,  MEIXNER, Hubert

IPC: C08B31/00 ,  C08B35/00 ,  D21H17/29 ,  D21H21/20

CPC classification number: C08G73/0213 ,  C08B31/00 ,  C08G81/00 ,  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 DEG 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.