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公开(公告)号：DE502004001277D1
公开(公告)日：2006-10-05
申请号：DE502004001277
申请日：2004-03-30
Applicant: BASF AG
Inventor： ESSER ANTON , BRAIG VOLKER , WENDKER MARTIN , BLUM RAINER , BAUMANN PETER , NEUTZNER JOSEF , DUPUIS JACQUES , HAEHNLE HANS-JOACHIM
Abstract: Aqueous slurries of finely divided fillers which are at least partly coated with polymers and which are obtainable by treating aqueous slurries of finely divided fillers with at least one water-soluble amphoteric copolymer whose structures are identified in the specification are used as an additive to the paper stock in the production of filler-containing paper, filler-containing cardboard or filler-containing board by draining of the paper stock.
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公开(公告)号：CA2590489A1
公开(公告)日：2006-06-29
申请号：CA2590489
申请日：2005-12-14
Applicant: BASF AG
Inventor： VON VADKERTHY TIBOR ADALBERT , HAEHNLE HANS-JOACHIM , ESSER ANTON
Abstract: A process for producing paper, board and cardboard in the presence of an aqueous slurry of components comprising finely divided fillers coated at least partly with water-soluble amphoteric copolymers, which involves adding, further to the aqueous slurry of components comprising finely divided fillers, at least one cationic and/or amphoteric polymer comprising as structural element no esters of unsaturated carboxylic acids with quaternized amino alcohols to the fiber suspension prior to sheet forming.
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公开(公告)号：DE50109176D1
公开(公告)日：2006-05-04
申请号：DE50109176
申请日：2001-09-19
Applicant: BASF AG
Inventor： BAUMGARTL HORST , HERFERT NORBERT , HAEHNLE HANS-JOACHIM
IPC: A61F13/53 , C08J9/28 , A61F13/00 , A61F13/15 , A61F13/49 , A61L15/26 , A61L15/42 , C08G12/26 , C08G12/32 , C08J9/36 , C08L61/32
Abstract: Hydrophilic open-celled resilient foams comprising melamine-formaldehyde resins, obtainable by(a) heating and crosslinking an aqueous solution or dispersion each containing at least a melamine-formaldehyde precondensate, an emulsifier, a blowing agent and a curing agent to form a foam,(b) then conditioning the foam at from 120 to 300° C. for from 1 to 180 minutes to remove volatiles, and(c) treating the foam during the conditioning or thereafter with at least one polymer containing primary and/or secondary amino groups and having a molar mass of not less than 300,are useful in hygiene articles to acquire, distribute andimmobilize body fluids.
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公开(公告)号：DE10055448A1
公开(公告)日：2002-05-23
申请号：DE10055448
申请日：2000-11-09
Applicant: BASF AG
Inventor： SCHROF WOLFGANG , GOEDERT UDO , BECK MARTIN , HAEHNLE HANS-JOACHIM , SCHORNICK GUNNAR
Abstract: A specific volume of the material (9) is placed in measuring vessel (7) and a compression force (12) is applied to the gel by a tube (4) guided inside a chamber (14) formed by the vessel. Expansion of the material is recorded without contact by recording a rise in height of a mark (6) on the tube. An Independent claim is made for process equipment in which the super absorbent material is held in a chamber bordered by a measuring vessel and a tube moving in the latter. Both tube and vessel are of metal and the chamber is permanently connected to a solution (17) via a filter (13) and sintered block (16).
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公开(公告)号：ES2166068T3
公开(公告)日：2002-04-01
申请号：ES97907048
申请日：1997-02-27
Applicant: BASF AG
Inventor： HAEHNLE HANS-JOACHIM , WALTER MANFRED , TROPSCH JUERGEN , KREMESKOETTER JENS , SCHORNICK GUNNAR , ANSTOCK THOMAS
IPC: A61F13/00 , A61F13/53 , A61L15/00 , A61L15/16 , A61L15/42 , A61L15/60 , C05G3/80 , C08F2/44 , C08F2/48 , C08F220/06 , C08J9/30 , C08L33/02
Abstract: Water-absorbing foamlike crosslinked polymers which are obtainable by(I) foaming a polymerizable aqueous mixture which consists of(a) monoethylenically unsaturated monomers containing acid groups, which are at least 50 mol % neutralized,(b) with or without other monoethylenically unsaturated monomers,(c) crosslinker,(d) initiators,(e) from 0.1 to 20% by weight of at least one surfactant,(f) with or without one or more solubilizers and(g) with or without thickeners, foam stabilizers, polymerization regulators, fillers and/or cell nucleating agents,the foaming being performed by dispersing fine bubbles of a gas inert to free radicals, and(II) polymerizing the foamed mixture with formation of a foamed hydrogel, with or without adjusting the water content of the foamed polymer to from 1 to 60% by weight, processes for their preparation and their use in sanitary articles which are used for absorbing body fluids and in dressing materials for covering wounds are described.
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Patent Agency Ranking
公开(公告)号：DE19931720A1
公开(公告)日：2001-01-11
申请号：DE19931720
申请日：1999-07-08
Applicant: BASF AG
Inventor： HAEHNLE HANS-JOACHIM , DYLLICK-BRENZINGER RAINER , SCHROEDER ULRICH , HERFERT NORBERT , RIEGEL ULRICH
IPC: C08J3/24 , C08L101/14
Abstract: A hydrogel forming polymer mixture (I) contains: (A) a hydrogel forming polymer having acidic groups; and (B) a hydrogel forming polymer having amine and /or imine groups such that the ratio of acid groups in (A) to the sum of amine and/or imine groups in (B) is 1:9-9:1.
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公开(公告)号：BRPI0518485A2
公开(公告)日：2008-11-18
申请号：BRPI0518485
申请日：2005-11-21
Applicant: BASF AG
Inventor： ESSER ANTON , HAEHNLE HANS-JOACHIM , RUEBENACKER MARTIN , SCHALL NORBERT , DUPUIS JACQUES , NEUTZNER JOSEF , NIESSNER MAFRED , STURM BERTHOLD
IPC: D21H21/18
Abstract: The invention relates to a process for producing paper, board and cardboard of high dry strength by separately adding a polymer comprising vinylamine units and a polymeric anionic compound to a paper pulp, dewatering the pulp and drying the paper products, which comprises using as polymeric anionic compound at least one copolymer obtainable by copolymerizing (a) at least one N-vinylcarboxamide of the formula in which R1 and R2 are H or C1- to C6 alkyl, (b) at least one monoethylenically unsaturated monomer comprising acid groups, and/or the alkali metal, alkaline earth metal or ammonium salts thereof, and if appropriate (c) other monoethylenically unsaturated monomers, and if appropriate (d) compounds having at least two ethylenically unsaturated double bonds in their molecule.
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公开(公告)号：AT371698T
公开(公告)日：2007-09-15
申请号：AT03737290
申请日：2003-01-30
Applicant: BASF AG
Inventor： CHAMP SAMANTHA , HAEHNLE HANS-JOACHIM , BECK MARTIN , FUNK RUEDIGER
IPC: A61F13/53 , C08J9/30 , A61F13/00 , A61F13/15 , A61F13/49 , A61L15/00 , C08J9/12 , C08J9/28 , C08K3/00 , C08K5/00 , C08L101/14
Abstract: Foams composed of water-absorbing basic polymers, obtainable by (I) foaming a crosslinkable aqueous mixture including (a) at least one basic polymer whose basic groups have optionally been neutralized, (b) at least one crosslinker, (c) at least one surfactant, (d) optionally at least one solubilizer, (e) optionally thickeners, foam stabilizers, fillers, fibers and/or cell nucleators, and (f) optionally particulate water-absorbing acidic polymers, by dissolving a gas which is inert toward free radicals in the crosslinkable aqueous mixture under a pressure from 2 to 400 bar and subsequently decompressing the crosslinkable aqueous mixture to atmospheric or by dispersing fine bubbles of a gas which is inert toward free radicals, and (II) crosslinking the foamed mixture to form a hydrogel foam and if applicable adjusting the water content of the polymer foam to 1-60% by weight. Preparation of the foams by application of the abovementioned measures (I) and (II) and use of the thus obtainable foams in hygiene articles to absorb body fluids, in dressing material to cover wounds, as a sealing material, as a packaging material, as a soil improver, as a soil substitute, to dewater sludges, to absorb aqueous acidic wastes, to thicken waterborne paints or coatings in the course of disposing of residual quantities thereof, to dewater water-containing oils or hydrocarbons or as a material for filters in ventilation systems.
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公开(公告)号：PT1613703E
公开(公告)日：2006-12-29
申请号：PT04724273
申请日：2004-03-30
Applicant: BASF AG
Inventor： BAUMANN PETER , ESSER ANTON , WENDKER MARTIN , BRAIG VOLKER , BLUM RAINER , NEUTZNER JOSEF , DUPUIS JACQUES , HAEHNLE HANS-JOACHIM
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公开(公告)号：DE102004056551A1
公开(公告)日：2006-05-24
申请号：DE102004056551
申请日：2004-11-23
Applicant: BASF AG
Inventor： ESSER ANTON , HAEHNLE HANS-JOACHIM , RUEBENACKER MARTIN , SCHALL NORBERT , DUPUIS JACQUES , NEUTZNER JOSEF , NIESNER MANFRED , STURM BERTHOLD
Abstract: The invention relates to a process for producing paper, board and cardboard of high dry strength by separately adding a polymer comprising vinylamine units and a polymeric anionic compound to a paper pulp, dewatering the pulp and drying the paper products, which comprises using as polymeric anionic compound at least one copolymer obtainable by copolymerizing (a) at least one N-vinylcarboxamide of the formula in which R1 and R2 are H or C1- to C6 alkyl, (b) at least one monoethylenically unsaturated monomer comprising acid groups, and/or the alkali metal, alkaline earth metal or ammonium salts thereof, and if appropriate (c) other monoethylenically unsaturated monomers, and if appropriate (d) compounds having at least two ethylenically unsaturated double bonds in their molecule.
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