公开(公告)号：ID25455A

公开(公告)日：2000-10-05

申请号：ID20001607

申请日：1999-02-24

Applicant: BASF AG

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

IPC: C07D263/20 ,  A61L15/00 ,  A61L15/60 ,  C08F8/30 ,  C08G73/06 ,  C08J3/24

Abstract: The invention contains a process for the surface postcrosslinking of water-absorbing polymers in which the polymers are treated with a surface postcrosslinking solution and during or after the treatment are postcrosslinked by means of an increase in temperature and are dried, wherein the crossiinker comprises a bis-2-oxazolidinone or a poly-2-oxazolidinone comprising structural units of the formulain which R1 is branched or unbranched C1-C18-alkylene, branched or unbranched C2-C18-alkenylene, C5-C18-cycloalkylene, phenylene, naphthylene, anthracenylene, hydrocarbon-substituted phenylene, naphthylene or anthracenylene or another substituted or unsubstituted C6-C18-arylene radical, R2 is branched or unbranched C1-C18-alkylene and n is an integer from 1 to 50 or a mixture of bis-2-oxazolidinones and poly-2-oxazolidinones dissolved in an inert solvent.

公开(公告)号：ZA200601164B

公开(公告)日：2007-05-30

申请号：ZA200601164

申请日：2006-02-09

Applicant: BASF AG

Inventor： DIETER HERMELING ,  THOMAS DANIEL ,  MARK ELLIOTT ,  ULRICH RIEGEL ,  REINHOLD SCHWALM ,  FRANK DIETSCHE

IPC: A61L20090101 ,  A61L15/60 ,  C07C20090101 ,  C08G20090101 ,  C08G65/26 ,  C08G65/332

Abstract: Disclosed are novel (meth)acrylic esters of monoalkoxylated polyols, a process for their preparation and their use for preparing crosslinked swellable hydrogel-forming polymers and crosslinked swellable hydrogel-forming polymers.

公开(公告)号：ZA200508875B

公开(公告)日：2007-02-28

申请号：ZA200508875

申请日：2005-11-02

Applicant: BASF AG

Inventor： ULRICH RIEGEL ,  THOMAS DANIEL ,  DIETER HERMELING ,  MARK ELLIOTT ,  REINHOLD SCHWALM

IPC: C07C20090101 ,  C08F20090101 ,  C08G20090101