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WATER-ABSORBENT RESIN COMPOSITION, METHOD OF MANUFACTURING THE SAME, AND ABSORBENT ARTICLE
专利权人:
发明人:
申请号:
EP06843119.6
公开号:
EP1963435B1
申请日:
2006.12.19
申请国别(地区):
EP
年份:
2017
代理人:
摘要:
In one embodiment of the present invention, a water-absorbent resin composition is provided which shows only small reduction in liquid permeability and limited coloring over time or in relation to another factor. The water-absorbent resin composition (particulate absorbent agent) of the present invention contains: a polycarboxylate-based water-absorbent resin as a primary component, the resin having a crosslinked structure formed by polymerization of an acid group-containing unsaturated monomer and multivalent metal cations (preferably, on surfaces of particles (i.e., the water-absorbent resin composition)) wherein: the multivalent metal cations other than Fe cations account for 0.001 to 1 mass % of the water-absorbent resin and the ratio of the Fe cations to the multivalent metal cations other than the Fe cations is less than or equal to 5.00 mass %.
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