基本信息:
- 专利标题： Particulate Water-Absorbent Resin Composition and its Production Process
- 专利标题（中）：颗粒吸水树脂组合物及其制备方法
- 申请号：US10577355 申请日：2004-11-05
- 公开(公告)号：US20080139693A1 公开(公告)日：2008-06-12
- 发明人： Hiroyuki Ikeuchi , Kazushi Torii , Taku Iwamura , Sayaka Machida , Hiroko Okochi
- 申请人： Hiroyuki Ikeuchi , Kazushi Torii , Taku Iwamura , Sayaka Machida , Hiroko Okochi
- 优先权： JP2003-377898 20031107
- 国际申请： PCT/JP04/16777 WO 20041105
- 主分类号： C08K5/053
- IPC分类号： C08K5/053
摘要：
An object of the present invention is to provide a particulate water-absorbent resin composition and its production process, wherein the particulate water-absorbent resin composition is an enhanced one in both of the “liquid permeability” and “liquid-sucking-up property” (which have hitherto been antithetical physical properties) of the water-absorbent resin. As a means of achieving this object, a first particulate water-absorbent resin composition according to the present invention is a particulate water-absorbent resin composition comprising a water-absorbent resin (A) of a crosslinked structure obtained by polymerizing an acid-group-containing unsaturated monomer, with the composition being characterized by: having a particle size such that particles in the range of 850 to 150 μm (but not including 850 μm) account for not less than 90 weight % of the entirety; and containing a tetra- or more functional polyol (B) at least on surfaces.
摘要（中）：
本发明的目的在于提供一种颗粒状吸水性树脂组合物及其制造方法，其特征在于，所述颗粒状吸水性树脂组合物是“液体渗透性”和“吸液性” （其迄今为止为对称物理性质）的吸水性树脂。 作为实现该目的的手段，本发明的第一粒状吸水性树脂组合物是含有吸水性树脂（A）的颗粒状吸水性树脂组合物，所述吸水性树脂（A）是将酸 - 所述组合物的特征在于：具有使得在850〜150μm（但不包括850μmum）的范围内的颗粒占整个体积不小于90wt％的粒径; 并且至少在表面上含有四官能以上的多元醇（B）。