PROBLEM TO BE SOLVED: To provide a pressure dispersion material containing a composite polymeric hydrogel imparted with suitable load dispersibility, moisture permeability and water absorbability.SOLUTION: The pressure dispersion material includes a porous gel containing (C) a low-volatile medium in a three-dimensional network formed from (A) a polymer of a water-soluble organic monomer and (B) a clay mineral. The (C) low-volatile medium is the one exhibiting ≤0.1 g/cm2 per hour at 60°C and at 1 atm, or having a vapor pressure at 20°C of ≤1,000 Pa and a boiling point at 1 atm of ≥130°C.COPYRIGHT: (C)2012,JPO&INPIT【課題】好適な荷重分散性や透湿・吸水性が付与された複合高分子ヒドロゲルを含んでなる圧力分散材の提供。【解決手段】水溶性有機モノマーの重合体(A)と、粘土鉱物(B)とから形成される三次元網目中に、低揮発性媒体(C)を含有する多孔質ゲルを含んでなる圧力分散材を提供する。低揮発性媒体(C)は、0.1g/cm2・hr・60℃・1atm以下の低揮発性媒体、あるいは20℃における蒸気圧が1000Pa以下で1気圧における沸点が130℃以上の低揮発性媒体とされる。【選択図】なし
