Title:
生分解性高吸収性ポリマーヒドロゲルおよびその製造法
Document Type and Number:
Japanese Patent JP2008533215
Kind Code:
A
Abstract:
The invention relates to a method for the preparation of a superabsorbent polymer hydrogel, comprising the steps of (i) crosslinking a 3% overall aqueous solution of carboxymethylcellulose sodium salt and hydroxyethylcellulose with 5% carbodiimide, in the presence of an acid catalyst; (ii) washing the gel obtained at least once by swelling in a polar organic solvent; and (iii) drying the gel by phase inversion in a non-solvent for cellulose. The invention further concerns the superabsorbent hydrogels obtainable by said method and the uses thereof.
Inventors:
Luigi AMBROSIO
Luigi NICOLAIS
Alessandro SANNINO
Luigi NICOLAIS
Alessandro SANNINO
Application Number:
JP2007548949A
Publication Date:
August 21, 2008
Filing Date:
December 28, 2005
Export Citation:
Assignee:
Luigi AMBROSIO
Luigi NICOLAIS
Alessandro SANNINO
Luigi NICOLAIS
Alessandro SANNINO
International Classes:
C08B11/08; A01N25/04; A01N25/10; A23L1/30; A23L21/10; A23L29/20; A61F13/49; A61F13/53; A61L15/00; A61L15/60; B01J20/26; C08B11/12; C08B15/10; A61L27/00
Domestic Patent References:
| JPH05508161A | 1993-11-18 | |||
| JPH07102002A | 1995-04-18 | |||
| JP2004500469A | 2004-01-08 |
Foreign References:
| US6630422B1 | 2003-10-07 |
Attorney, Agent or Firm:
Mitsuo Tanaka
Takuji Yamada
Yasuo Shibata
Kenichi Morizumi
Takuji Yamada
Yasuo Shibata
Kenichi Morizumi