公开(公告)号：EP0991733A1

公开(公告)日：2000-04-12

申请号：EP98934913.9

申请日：1998-06-04

Applicant: BASF AKTIENGESELLSCHAFT

Inventor： SUTORIS, Heinz, Friedrich ,  MITULLA, Konrad ,  DUPUIS, Jacques ,  KALIBA, Claus

IPC: C09K15/30 ,  C07C7/20 ,  C07B63/04

CPC classification number: C08F2/40 ,  C07B63/04 ,  C09K15/20 ,  C09K15/32

Abstract: The invention relates to a mixture of substances containing one or several compounds with vinyl groups as constituent (A) and a stabilizer (B) as another constituent containing one or several easily volatile nitroxyl compounds as constituent (b1), one or several non-easily volatile nitroxyl compounds as constituent (b2), optionally one or several aromatic nitro compounds as constituent (b3) and optionally one or several iron compounds as constituent (b4). The invention also relates to stabilizers (B) containing constituents (b1) and (b2), (b1) and (b2) and (b3), (b1) and (b2) and (b4), in addition to (b1), (b2), (b3) and (b4). The invention further relates to a method for inhibiting premature polymerization of compounds with vinyl groups during the cleaning thereof or distillation by adding a stabilizer (B), or by adding the constituents of stabilizer (B) as individual substances or in at least two groups of constituents.

公开(公告)号：EP1819877A1

公开(公告)日：2007-08-22

申请号：EP05811227.7

申请日：2005-11-21

Applicant: BASF AKTIENGESELLSCHAFT

Inventor： ESSER, Anton ,  HÄHNLE, Hans-Joachim ,  RÜBENACKER, Martin ,  SCHALL, Norbert ,  DUPUIS, Jacques ,  NEUTZNER, Josef ,  NIESSNER, Manfred ,  STURM, Berthold

IPC: D21H21/18

CPC classification number: D21H21/18 ,  D21H17/37 ,  D21H17/55 ,  D21H17/56

Abstract: The invention relates to a method for producing high dry strength paper, paperboard or cardboard by separately adding a vinyl amine unit-containing polymer and a polymeric anionic compound to a paper pulp, draining the paper pulp and drying the paper products. The inventive method is characterized by using at least one copolymer as the polymeric anionic compound which is obtained by copolymerizing (a) at least one N-propenoic acid amide of formula (I), wherein R1, R2 = H or C1 to C6 alkyl, (b) at least one acid group-containing monoethylenically unsaturated monomer and/or the alkali metal salts, alkaline earth metal salts or ammonium salts thereof and optionally (c) other monoethylenically unsaturated monomers, and optionally (d) compounds that comprise at least two ethylenically unsaturated double bonds in the molecule.

公开(公告)号：EP1654419A1

公开(公告)日：2006-05-10

申请号：EP04763464.7

申请日：2004-07-23

Applicant: BASF Aktiengesellschaft

Inventor： HÄHNLE, Hans-Joachim ,  ESSER, Anton ,  BRAIG, Volker ,  BLUM, Rainer ,  BAUMANN, Peter ,  DUPUIS, Jacques ,  NEUTZNER, Josef

IPC: D21H17/45

CPC classification number: D21H17/74 ,  C08F8/44 ,  C08F226/02 ,  C08F2810/50 ,  C08L33/14 ,  C08L33/26 ,  C08L43/02 ,  D21H17/45 ,  C08L2666/02 ,  C08F228/02 ,  C08F220/06 ,  C08F8/12 ,  C08F230/02

Abstract: The invention relates to an aqueous composition comprising at least one fine-particle filler and at least one water-soluble amphoteric copolymer. The invention also relates to a method for producing a composition of this type and to the use thereof as an additive in the production of paper, card and cardboard.

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.