KITO TETSUJI,鬼頭 哲治,MEIWA YOSHIHEI,明和 善平,SASE MASAKAZU,佐瀬 正和
申请号：
JP2012082740
公开号：
JP2013213083A
申请日:
2012.03.30
申请国别(地区):
JP
年份:
2013
代理人:
摘要：
PROBLEM TO BE SOLVED: To provide water absorbing resin particles having enhanced liquid permeability while maintaining the absorption/retention amount and water absorption speed, and to provide a method for producing the water absorbing resin particles, and an absorbing article using the water absorbing resin particles.SOLUTION: [1] Modified water absorbing resin particles are obtained by performing polymerization in the presence of water absorbing resin particles (A) containing a crosslinked polymer, 1-10 mass% of a hydrophobic unsaturated monomer (B) based on the amount of the monomer component of the crosslinked polymer in the water absorbing resin particles (A), and a radical polymerization initiator (C). [2] A method for producing modified water absorbing resin particles includes performing polymerization in the presence of water absorbing resin particles (A) containing a crosslinked polymer, 1-10 mass% of a hydrophobic unsaturated monomer (B) based on the amount of the monomer component of the crosslinked polymer in the water absorbing resin particles (A), and a radical polymerization initiator (C). [3] An absorbing article has modified water absorbing resin particles described in the above [1] as a constituent member.COPYRIGHT: (C)2014,JPO&INPIT【課題】吸収保持量及び吸水速度を維持したまま、通液性を高めた吸水性樹脂粒子、その製造方法及びこれを用いた吸収性物品を提供する。【解決手段】[1]架橋ポリマーを含有する吸水性樹脂粒子(A)、前記吸水性樹脂粒子(A)の架橋ポリマーの単量体成分に対して0.1~10質量%の疎水性不飽和単量体(B)、及びラジカル重合開始剤(C)の存在下で、重合を行って得られる改質吸水性樹脂粒子、及び[2]架橋ポリマーを含有する吸水性樹脂粒子(A)、前記吸水性樹脂粒子(A)の架橋ポリマーの単量体成分に対して0.1~10質量%の疎水性不飽和単量体(B)、及びラジカル重合開始剤(C)の存在下で重合を行う、改質吸水性樹脂粒子の製造方法、[3]上記[1]に記載の改質吸水性樹脂粒子を構成部材として有する、吸収性物品。【選択図】なし
