公开(公告)号：DE102007012626A1

公开(公告)日：2007-11-15

申请号：DE102007012626

申请日：2007-03-16

Applicant: BASF AG

Inventor： ALLMENDINGER MARKUS ,  ALTEHELD ARMIN ,  HAHN KLAUS ,  ZIEMER ANTJE ,  ALTMANN STEPHAN ,  CHAMP SAMANTHA

IPC: C08L25/06 ,  C08J5/00 ,  C08J7/04 ,  C08J9/00 ,  E04B1/74 ,  E04B1/76 ,  E04C2/20

Abstract: A method (M1) for the production of pre-expanded polystyrene particles (I) coated with water-absorbent polymer(s) (W), involves (a) pre-expanding particles of expandable polystyrene to give particles with a bulk density (DIN ISO EN 60) of 5-50 g/l and then (b) coating the particles with polymer (W). Independent claims are included for (1) polymer-coated, pre-expanded polystyrene particles (I) obtained by this method (2) molded parts (II) made from polystyrene foam obtained from (I) (3) a method (M2) for the production of (II) by filling (I) into a gas-permeable mold, reducing the volume by pressing the particles in the closed mold, hardening at 20-100[deg]C and then demolding the product (4) a method (M3) for the production of (II) by filling (I) into a mold, expanding the particles and welding them together in the closed mold at 60-120[deg]C, and then demolding the product .

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.

公开(公告)号：CA2622613A1

公开(公告)日：2007-03-01

申请号：CA2622613

申请日：2006-08-09

Applicant: BASF AG

Inventor： KOWALSKI ANNA ,  ZIEMER ANTJE ,  CHAMP SAMANTHA

IPC: A62D3/00 ,  A62D1/00

Abstract: The invention relates to a method for producing low viscose polymergels by mixing a water-absorbing polymer with water. A chelating agent is added in order to reduce viscosity. The invention also relates to the use of said gel in fire fighting.

公开(公告)号：DE102005023608A1

公开(公告)日：2006-11-23

申请号：DE102005023608

申请日：2005-05-18

Applicant: BASF AG

Inventor： CHAMP SIMON ,  ETTL ROLAND ,  CHAMP SAMANTHA

IPC: D21H23/16 ,  D21H21/22

Abstract: A process for the production of paper, board and cardboard in the presence of a water-swellable polymer by adding the water-swellable polymer to a fiber suspension, the fiber suspension comprising water-swellable polymers being beaten.

公开(公告)号：ZA200503680B

公开(公告)日：2006-07-26

申请号：ZA200503680

申请日：2005-05-09

Applicant: BASF AG

Inventor： CHAMP SAMANTHA ,  WANIOR MARIOLA ,  REIFSCHNEIDER ANDREAS

IPC: A61L20060101 ,  A61L15/42 ,  A61L15/60 ,  B01J20/26 ,  C08J9/00 ,  C08J9/28 ,  C08L20060101 ,  C09K3/10

Abstract: A superabsorbing foam containing synthetic fibers and/or natural fibers selected from:apple, orange, tomato, wheat fibers and/or oat fibers is new. An Independent claim is included for preparation of foam of increased wet strength by foaming a crosslinkable aqueous mixture containing at least 50 mole% neutralized acid groups containing monoethylenically unsaturated monomer, or at least one basic polymer crosslinker, superabsorbing synthetic fibers and/or natural fibers selected from the above group and at least one surfactant, polymerization of the monomers or the basic polymer in the mixture to be foamed, and formation of a foamed hydrogel.

公开(公告)号：AU2003261648A1

公开(公告)日：2004-02-02

申请号：AU2003261648

申请日：2003-07-07

Applicant: BASF AG

Inventor： CHAMP SAMANTHA ,  HAHNLE HANS-JOACHIM ,  WANIOR MARIOLA

IPC: A61F13/53 ,  A61F13/00 ,  A61F13/15 ,  A61F13/49 ,  A61L15/16 ,  A61L15/18 ,  A61L15/24 ,  A61L15/42 ,  A61L15/48 ,  A61L15/60 ,  C08J9/12 ,  C08J9/30 ,  C08K3/00 ,  C08K3/36

Abstract: Use in hygiene articles of articles formed of water-absorbent, predominantly open-celled crosslinked acid-functional addition polymer foams Abstract The use of articles formed of water-absorbent open-celled crosslinked acid-functional addition polymer foams and containing finely divided silicon dioxide and/or at least one surfactant on their surface as an acquisition and/or distribution layer in hygiene articles.

公开(公告)号：DE10162411A1

公开(公告)日：2003-07-03

申请号：DE10162411

申请日：2001-12-19

Applicant: BASF AG

Inventor： DIETZEN FRANZ-JOSEF ,  CHAMP SAMANTHA ,  SCHAEFER HARALD ,  BECKER ARMIN ,  HOSS ULRIKE ,  WANIOR MARIOLA

IPC: A61F13/15 ,  A61L15/24 ,  A61L15/42 ,  C08J9/08 ,  B29C44/50 ,  C08J9/224 ,  C08L25/08

Abstract: The use of a foam film of thickness 0.2-10 mm with more than 80% open cells and mean cell size 10-1500 micron based on styrene polymers for hygiene articles, where the foam film is obtained by extrusion of a polymer melt which optionally contains a rubber modified styrene polymer as polymer together with 1-12 wt.% of a volatile propellant comprising a mixture of CO2 and water in wt. ratio 80:20 to 20:80 is new.

公开(公告)号：DE102005039974A1

公开(公告)日：2007-03-22

申请号：DE102005039974

申请日：2005-08-23

Applicant: BASF AG

Inventor： HERRLICH-LOOS MIRJAM ,  HAINDL CORINNA ,  CHAMP SAMANTHA ,  BECK MARTIN ,  TOENNESEN MARKUS ,  FASTNER MICHAEL

IPC: D06M15/263 ,  A47C27/00 ,  A61L15/60 ,  C08K5/053 ,  C09D4/02 ,  D03D15/00 ,  D04H1/42 ,  D06M23/14

公开(公告)号：AT353673T

公开(公告)日：2007-03-15

申请号：AT03753507

申请日：2003-10-06

Applicant: BASF AG

Inventor： CHAMP SAMANTHA ,  WANIOR MARIOLA ,  REIFSCHNEIDER ANDREAS

IPC: A61L15/42 ,  A61L15/60 ,  B01J20/26 ,  C08J9/00 ,  C08J9/28 ,  C09K3/10

Abstract: A superabsorbing foam containing synthetic fibers and/or natural fibers selected from:apple, orange, tomato, wheat fibers and/or oat fibers is new. An Independent claim is included for preparation of foam of increased wet strength by foaming a crosslinkable aqueous mixture containing at least 50 mole% neutralized acid groups containing monoethylenically unsaturated monomer, or at least one basic polymer crosslinker, superabsorbing synthetic fibers and/or natural fibers selected from the above group and at least one surfactant, polymerization of the monomers or the basic polymer in the mixture to be foamed, and formation of a foamed hydrogel.

公开(公告)号：CA2586336A1

公开(公告)日：2006-06-01

申请号：CA2586336

申请日：2005-11-21

Applicant: BASF AG

Inventor： GOEBEL GERD ,  PFEIFFER MATTHIAS ,  ZIEMER ANTJE ,  TOENNESSEN MARKUS ,  BECK MARTIN ,  CHAMP SAMANTHA

IPC: A62D1/00

Abstract: A fire extinguishing and/or retardant composition, contains at least one water absorbing polymer and at least one alkaline salt of a non-polymeric saturated carboxylic acid. The composition also contains water, and a foaming agent.