AQUEOUS LIQUID ABSORBING RESIN, AQUEOUS LIQUID ABSORBING COMPOSITION, AND ABSORBENT BODY AND ABSORBENT ARTICLE USING SAME
申请人:Sanyo Chemical Industries, Ltd.
公开号:EP2899224A1
公开(公告)日:2015-07-29
An absorbent resin and an absorbent composition that use a large amount of material derived from plants, have excellent aqueous liquid absorbing capability, and have excellent absorbing capability in a compressed state due to having a favorable gel elastic modulus. An absorbent resin made by bonding (A1) an oxidized polysaccharide having a carboxyl group that may be neutralized by a neutralizing agent, and/or (A2) a crosslinked compound thereof with (B1) a poly(meth)acrylic acid where at least one of the carboxyl groups may be neutralized by a neutralizing agent, and/or (B2) a crosslinked compound thereof; or an absorbent composition made by blending (A1) and/or (A2) and (B1) and/or the (B2) ; wherein the weight average molecular weight of (A1) is 2, 000 to 10, 000, 000, the acid value of (A1) is 65 to 524 mgKOH/g, and if (A1) has a carboxyl group that has been neutralized by a neutralizing agent, the acid value prior to neutralizing is 65 to 524 mgKOH/g.
一种吸水树脂和一种吸水剂组合物,它们使用了大量从植物中提取的材料,具有极佳的水性液体吸收能力,并且由于具有良好的凝胶弹性模量而在压缩状态下具有极佳的吸收能力。一种吸水树脂,通过将(A1)具有可被中和剂中和的羧基的氧化多糖和/或(A2)其交联化合物与(B1)聚(甲基)丙烯酸(其中至少一个羧基可被中和剂中和)和/或(B2)其交联化合物粘合而成;或将(A1)和/或(A2)与(B1)和/或(B2)混合制成的吸水剂组合物;其中(A1)的重量平均分子量为2,000至10,000,000,(A1)的酸值为65至524 mgKOH/g,如果(A1)具有已被中和剂中和的羧基,则中和前的酸值为65至524 mgKOH/g。