Title:
【発明の名称】N-アシル-2-オキサゾリルジノンを用いてヒドロゲルを後架橋する方法
Document Type and Number:
Japanese Patent JP2002530490
Kind Code:
A
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 surface postcrosslinking solution comprises as crosslinker a compound of the formula IwhereR1, R2, R3 and R4 are independently hydrogen, C1-C12-alkyl, C1-C12-alkenyl, C6-C12-aryl or C1-C12-alkoxy,R5 is C1-C16-alkyl, C1-C4-hydroxyalkyl, C6-C12-aryl, C1-C16-alkenyl or a group of the formula -(CH2)n-COOH or -(CH2)n-SO3H in the form of the acid or a respective metal salt, ammonium salt or triethanolammonium salt thereof or -(CH2-CH2-O-)m-R6,R6 is hydrogen or C1-C16-alkyl,n is from 1 to 10,m is from 1 to 20dissolved in an inert solvent,and are used in hygiene articles, packaging materials and nonwovens.
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Inventors:
Ulrich Riegel
Matthias Weismantel
Volker Frenz
Thomas daniel
Fritz Engelhard
Matthias Weismantel
Volker Frenz
Thomas daniel
Fritz Engelhard
Application Number:
JP2000583976A
Publication Date:
September 17, 2002
Filing Date:
November 18, 1999
Export Citation:
Assignee:
BASF Akchen Gezel Shaft
International Classes:
A21B1/22; A21B1/44; A61F13/53; A61L15/60; C08F8/30; C08J3/24; C08K5/353; C08L101/00; D04H1/42; D06M15/263; (IPC1-7): C08J3/24; A21B1/22; A21B1/44; A61F13/53; A61L15/60; C08K5/353; C08L101/00; D04H1/42
Attorney, Agent or Firm:
Toshio Yano (4 outside)