公开(公告)号：AT287904T

公开(公告)日：2005-02-15

申请号：AT02777242

申请日：2002-09-27

Applicant: BASF AG

Inventor： DANIEL THOMAS ,  EXNER KAI MICHAEL ,  MASSONNE KLEMENS ,  RIEGEL ULRICH ,  WEISMANTEL MATTHIAS

IPC: B65D65/02 ,  A61L15/00 ,  A61L15/60 ,  C07D265/32 ,  C08F8/30 ,  C08K5/357 ,  C08L101/14

Abstract: The invention relates to a method for gel post-crosslinking or surface post-crosslinking water-absorbing hydogels with morpholine-2,3-diones, to the post-crosslinked hydrogels and to the use thereof.

公开(公告)号：ES2216617T3

公开(公告)日：2004-10-16

申请号：ES99963322

申请日：1999-11-23

Applicant: BASF AG

Inventor： RIEGEL ULRICH ,  WEISMANTEL MATTHIAS ,  FRENZ VOLKER ,  DANIEL THOMAS ,  ENGELHARDT FRITZ

IPC: A61F5/44 ,  A61F13/15 ,  A61F13/53 ,  A61F13/49 ,  A61L15/00 ,  C08F8/30 ,  C08J3/24 ,  C08K5/357 ,  C08L101/00

Abstract: Liquid-absorbent polymers are prepared by a process for the gel and/or surface postcrosslinking of water-absorbent polymers by the polymer being treated with a surface postcrosslinking solution and being postcrosslinked and dried during and after the treatment by raising the temperature, wherein the crosslinker comprises a compound of the formula Iwhere R is hydrogen, C1-C4-alkyl, C1-C4-hydroxyalkyl, trialkylsilyl or acetyl and R , R , R , R , R , R are each independently hydrogen, C1-C12-alkyl, C2-C12-alkenyl or C6-C12-aryl, dissolved in an inert solvent, and are used in hygiene articles, packaging materials and nonwovens.

公开(公告)号：CA2496448A1

公开(公告)日：2004-03-25

申请号：CA2496448

申请日：2003-08-25

Applicant: BASF AG

Inventor： DANIEL THOMAS ,  RIEGEL ULRICH ,  WENDKER MARTIN ,  ELLIOTT MARK ,  WEISMANTEL MATTHIAS

IPC: B01J20/26 ,  A61L15/24 ,  A61L15/60 ,  C08J3/24 ,  C08L33/02 ,  C08L33/24 ,  C08L33/26 ,  C08L101/14 ,  C08L39/02 ,  C08L57/00 ,  C08L101/00

Abstract: Disclosed is a water absorbing agent which consists of (a) particles of a water absorbing polymer and (b) a polymer which contains nitrogen and which contains 5-17 mol/kg protonated nitrogen atoms in relation to the overall weight of said nitrogen- -containing polymer. The inventive agent has an improved property profile with a high absorption capacity, improved fluid transmissibility and high water resistance.

公开(公告)号：AU2003274698A1

公开(公告)日：2003-12-22

申请号：AU2003274698

申请日：2003-06-10

Applicant: BASF AG

Inventor： SCHWALM REINHOLD ,  WEISMANTEL MATTHIAS ,  RIEGEL ULRICH ,  POPP ANDREAS ,  DANIEL THOMAS ,  SCHRODER JURGEN ,  JAWOREK THOMAS ,  FUNK RUDIGER

IPC: A61L15/60 ,  C07B61/00 ,  C07C67/08 ,  C07C67/62 ,  C07C69/54 ,  C08F20/20 ,  C08G65/26 ,  C08G65/332

公开(公告)号：AU2003238490A1

公开(公告)日：2003-12-22

申请号：AU2003238490

申请日：2003-06-10

Applicant: BASF AG

Inventor： POPP ANDREAS ,  DANIEL THOMAS ,  SCHRODER JURGEN ,  JAWOREK THOMAS ,  FUNK RUDIGER ,  SCHWALM REINHOLD ,  WEISMANTEL MATTHIAS ,  RIEGEL ULRICH

IPC: A61L15/60 ,  C07C67/08 ,  C08F290/06 ,  C08G65/26 ,  C08G65/28 ,  C08G65/332 ,  C07C69/54

Abstract: The present invention relates to novel (meth)acrylic esters of polyalkoxylated trimethylolpropane of the formula where EO is O-CH2-CH2- PO is independently at each instance O-CH2-CH(CH3)- or O-CH(CH3)-CH2- n1, n2 and n3 are independently 4, 5 or 6, n1+n2+n3 is 14, 15 or 16, m1, m2 and m3 are independently 1, 2 or 3, m1+m2+m3 is 4, 5 or 6, R1, R2 and R3 are independently H or CH3, a simplified process for preparing these esters and the use of reaction mixtures thus obtainable.

公开(公告)号：DE59906512D1

公开(公告)日：2003-09-11

申请号：DE59906512

申请日：1999-02-19

Applicant: BASF AG

Inventor： FUNK RUEDIGER ,  FRENZ VOLKER ,  RIEGEL ULRICH ,  WEISMANTEL MATTHIAS ,  ENGELHARDT FRITZ ,  DANIEL THOMAS

IPC: C07D263/20 ,  A61L15/00 ,  A61L15/60 ,  C08F8/30

公开(公告)号：PL347935A1

公开(公告)日：2002-04-22

申请号：PL34793599

申请日：1999-11-18

Applicant: BASF AG

Inventor： DANIEL THOMAS ,  RIEGEL ULRICH ,  WEISMANTEL MATTHIAS ,  HERFERT NORBERT ,  ENGELHARDT FRIEDRICH

IPC: A61F13/53 ,  A61F5/44 ,  A61F13/15 ,  A61F13/49 ,  A61L15/18 ,  A61L15/60 ,  C08F2/44 ,  C08F20/04 ,  C08K3/34

Abstract: The invention relates to hydrogels capable of absorbing aqueous fluids, which hydrogels are produced by polymerization of olefinically unsaturated carboxylic acids or their derivatives. The hydrogels are characterized in that before, during or after the polymerization reaction and before drying a silicic acid alkali salt of the general formula (I) M2O×nSiO2 is added to the polymerization reaction mixture. In said formula M is an alkali metal and n is a number between 0.5 and 4. The hydrogel obtained in this way is then dried at an elevated temperature. The invention also relates to a method for producing said hydrogels and to their use for absorbing aqueous fluids.

公开(公告)号：DE19854573A1

公开(公告)日：2000-05-31

申请号：DE19854573

申请日：1998-11-26

Applicant: BASF AG

Inventor： RIEGEL ULRICH ,  WEISMANTEL MATTHIAS ,  FRENZ VOLKER ,  DANIEL THOMAS ,  ENGELHARDT FRITZ

IPC: A61F13/53 ,  A61F5/44 ,  A61F13/15 ,  A61F13/49 ,  A61L15/00 ,  C08F8/30 ,  C08J3/24 ,  C08K5/357 ,  C08L101/00 ,  C08F8/00

Abstract: The invention relates to a method for the secondary cross-linking of gels or surfaces of water-absorbing polymers by treating the polymer with a surface secondary cross-linking agent and subsequently subjecting it to a secondary cross-linking reaction during or after the treatment by raising the temperature and drying the polymer. According to the invention, the cross-linking agent is a compound of formula (I), wherein R is hydrogen, C1-C4 alkyl, C1-C4 hydroxyalkyl, trialkylsilyl or acetyl and R , R , R , R , R , R independently is hydrogen, C1-C12 alkyl, C2-C12 alkenyl or C6-C12 aryl, dissolved in an inert solvent. The invention also relates to the liquid-absorbing polymers obtained by said method, to their use in hygiene items, packaging material and nonwovens.

公开(公告)号：DE19807502A1

公开(公告)日：1999-09-16

申请号：DE19807502

申请日：1998-02-21

Applicant: BASF AG

Inventor： FUNK RUEDIGER ,  FRENZ VOLKER ,  RIEGEL ULRICH ,  WEISMANTEL MATTHIAS ,  ENGELHARDT FRITZ ,  DANIEL THOMAS

IPC: C07D263/20 ,  A61L15/00 ,  A61L15/60 ,  C08F8/30 ,  C08J3/24 ,  B65D65/42 ,  B65D81/20 ,  C08F220/06 ,  D06M15/19

Abstract: The invention relates to a method for the gel-phase or surface secondary cross-linking of water-absorbent polymers, characterized in that the polymer is treated with a solution for surface secondary cross-linking, during or after treatment undergoes secondary cross-linking by temperature elevation and is then dried. Dissolved in an inert solvent the cross-linking agent contains a compound of formula (I), where R and R independently of each other are H, hydroxy, phenyl or C1-C6-alkyl, R is hydrogen, C1-C12-alkyl, C1-C12-alkenyl or C6-C12-aryl and R and R independently of each other are C1-C12-alkyl, C1-C12-alkenyl, C6-C12-aryl, hydroxy, C1-C12-alkoxy or hydrogen. The invention also relates to water-absorbent polymers obtained according to the above method, and to their use in hygiene articles, packaging materials and non-woven materials.

公开(公告)号：AU2927199A

公开(公告)日：1999-09-06

申请号：AU2927199

申请日：1999-02-19

Applicant: BASF AG

Inventor： FUNK RUDIGER ,  FRENZ VOLKER ,  RIEGEL ULRICH ,  WEISMANTEL MATTHIAS ,  ENGELHARDT FRITZ ,  DANIEL THOMAS

IPC: C07D263/20 ,  A61L15/00 ,  A61L15/60 ,  C08F8/30