公开(公告)号：AT259834T

公开(公告)日：2004-03-15

申请号：AT99963322

申请日：1999-11-23

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

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：CA2487030A1

公开(公告)日：2003-12-18

申请号：CA2487030

申请日：2003-06-10

Applicant: BASF AG

Inventor： RIEGEL ULRICH ,  WEISMANTEL MATTHIAS ,  JAWOREK THOMAS ,  SCHROEDER JUERGEN ,  POPP ANDREAS ,  DANIEL THOMAS ,  FUNK RUEDIGER ,  SCHWALM REINHOLD

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

Abstract: The invention relates to novel (meth)acrylic esters of polyalkoxylated glycerine, to a simplified method for producing said esters and to the use o f the reaction mixtures thus obtained.

公开(公告)号：AU1232502A

公开(公告)日：2002-04-29

申请号：AU1232502

申请日：2001-10-17

Applicant: BASF AG

Inventor： FRENZ VOLKER ,  HERFERT NORBERT ,  WEISMANTEL MATTHIAS ,  RIEGEL ULRICH ,  ENGELHARDT FRIEDRICH ,  FUNK RUDIGER

IPC: A61L15/60 ,  C08F220/04 ,  C08F271/02

公开(公告)号：BR9908006A

公开(公告)日：2000-10-24

申请号：BR9908006

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：CA2347897A1

公开(公告)日：2000-06-02

申请号：CA2347897

申请日：1999-11-23

Applicant: BASF AG

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

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

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 R1 is hydrogen, C1-C4 alkyl, C1-C4 hydroxyalkyl, trialkylsilyl or acetyl and R2, R2', R3, R3', R4, R4' 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：CA2320778A1

公开(公告)日：1999-08-26

申请号：CA2320778

申请日：1999-02-19

Applicant: BASF AG

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

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

Abstract: The invention relates to a method for the gel-phase or surface secondary crosslinking 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 R1 and R2 independently of each other are H, hydroxy, phenyl or C1-C6-alkyl, R3 is hydrogen, C1-C12-alkyl, C1-C12-alkenyl or C6-C12-aryl and R4 and R5 independently of each other are C1-C12-alkyl, C1C12-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 nonwoven materials.