PROBLEM TO BE SOLVED: To provide absorptive resin particles having high strength of particles, hardly broken even under shear force and showing no decrease in the absorption rate, and to provide an absorptive article giving high dry feeling of a surface of the article.SOLUTION: The absorptive resin particles comprise a crosslinked polymer (A) including a water-soluble vinyl monomer (a1) and/or a hydrolyzable vinyl monomer (a2), and an internal crosslinking agent (b) as essential structural units, and a solid silicon-containing compound (C) derived from a water-soluble silicon compound (c). The absorptive resin particles are obtained by a production method including steps of: producing the crosslinked polymer (A) by polymerizing (a1) and/or (a2) and (b) in the presence of the water-soluble silicon compound (c) and/or mixing the crosslinked polymer (A) with the water-soluble silicon compound (c).COPYRIGHT: (C)2012,JPO&INPIT【課題】粒子の強度が強く、シアがかかっても壊れにくく吸収速度の低下が無い吸収性樹脂粒子を提供すること、そして、吸収性物品の表面のドライ感が高い吸収性物品を提供すること。【解決手段】水溶性ビニルモノマー(a1)及び/又は加水分解性ビニルモノマー(a2)並びに内部架橋剤(b)を必須構成単位とする架橋重合体(A)と、水溶性ケイ素化合物(c)から誘導される固体ケイ素含有化合物(C)とを含んでなり、(a1)及び/又は(a2)並びに(b)を水溶性ケイ素化合物(c)の存在下で重合して架橋重合体(A)を製造する工程、及び/又は架橋重合体(A)と水溶性ケイ素化合物(c)とを混合する工程を含む製造方法により得られる吸収性樹脂粒子。【選択図】図1
