| abstract |
PROBLEM TO BE SOLVED: To provide a highly water-absorbing resin having decomposability, gel stability, and excellent water absorbing ability. SOLUTION: A polysuccinimide is reacted with a compound having at least three amino groups as a cross-linking agent, and the remaining imide ring is hydrolyzed to have biodegradability and excellent gel stability. Resin and method for producing the same. [Effect] It is possible to obtain a water-absorbent resin which is excellent in the stability of the gel, is decomposable after use or disposal, is environmentally friendly, and has excellent water absorbing ability. |