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Title:
CROSSLINKED POLYSACCHARIDE SPONGE
Document Type and Number:
WIPO Patent Application WO/2002/060971
Kind Code:
A1
Abstract:
A process for producing a photocrosslinked polysaccharide sponge involving the step (A) of freezing a solution of a photoreactive polysaccharide and the step (B) of crosslinking the photoreactive polysaccharide by irradiating the frozen solution with light to thereby give a polysaccharide sponge. This process is advantageous in comprising the simplified steps without resort to the removal of solvents. Further, impurities can be easily eliminated therein.

Inventors:
Sato, Tomoya (Kureru 202 23-2, Ominami 4-chome Musashimurayama-shi, Tokyo, 280-0013, JP)
Application Number:
PCT/JP2002/000720
Publication Date:
August 08, 2002
Filing Date:
January 30, 2002
Export Citation:
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Assignee:
SEIKAGAKU CORPORATION (1-5 Nihonbashi-Honcho 2-chome Chuo-ku, Tokyo, Tokyo, 103-0023, JP)
Sato, Tomoya (Kureru 202 23-2, Ominami 4-chome Musashimurayama-shi, Tokyo, 280-0013, JP)
International Classes:
C08B11/12; C08B11/20; C08B15/00; C08B37/00; C08B37/04; C08B37/08; C08B37/10; C08F299/00; C08J9/28; C08J9/36; C08L5/00; (IPC1-7): C08F299/00; C08B11/12; C08B37/04; C08B37/08; C08J9/28; C08J9/36
Domestic Patent References:
WO1997044070A1
WO1994017840A1
WO1997018244A1
Foreign References:
JPH08301903A
JPS60219202A
JPH11322807A
EP0838491A2
JPH02208332A
JPH05255124A
JPS6411141A
JPH0673102A
JPH08143604A
EP0713859A2
JPH0733902A
JPH02208331A
JPH08301903A
Other References:
See also references of EP 1369441A1
Attorney, Agent or Firm:
Okada, Kazuhiko (Kudan Kangyo Bldg. 6F 10-1, Kudan-Kita 1-chome Chiyoda-ku, Tokyo, 102-0073, JP)
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