Title:
HYDROGEL OF (SEMI)INTERPENETRATING NETWORK STRUCTURE AND PROCESS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2003/093337
Kind Code:
A1
Abstract:
A hydrogel of the semi-interpenetrating network structure or interpenetrating network structure, characterized in that the hydrogel is one formed from a first monomer ingredient at least 10 mol% of which is accounted for by a charge-possessing unsaturated monomer and a second monomer ingredient at least 60 mol% of which is accounted for an electrically neutral, unsaturated monomer, the molar ratio of the first monomer ingredient to the second monomer ingredient being from 1/2 to 1/100, and that the second monomer ingredient has been polymerized and crosslinked to a lower degree of crosslinking than the first monomer ingredient. The hydrogel is usable in a diaper, sanitary good, sustained-release agent, construction material, building material, communication material, soil conditioner, contact lens, ocular lens, hollow fiber, artificial cartilage, artificial organ, material for fuel cells, battery diaphragm, impact-resistant material, cushion, etc.
Inventors:
OSADA YOSHIHITO (JP)
GONG JIAN PING (JP)
GONG JIAN PING (JP)
Application Number:
PCT/JP2003/004556
Publication Date:
November 13, 2003
Filing Date:
April 10, 2003
Export Citation:
Assignee:
HOKKAIDO TECH LICENSING OFFICE (JP)
OSADA YOSHIHITO (JP)
GONG JIAN PING (JP)
OSADA YOSHIHITO (JP)
GONG JIAN PING (JP)
International Classes:
A61F13/15; A61K9/14; A61L27/52; C08F2/00; C08F2/44; C08F220/58; C08F265/00; C08F283/00; (IPC1-7): C08F265/00
Foreign References:
| JP2002501563A | 2002-01-15 | |||
| JPH10500148A | 1998-01-06 | |||
| JP2002212452A | 2002-07-31 |
Other References:
See also references of EP 1505093A4
Attorney, Agent or Firm:
Itoh, Atsushi (15-17 Nishishinbashi 2-chom, Minato-ku Tokyo, JP)
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