基本信息:
- 专利标题: AN ABSORBENT MEMBER COMPRISING A MODIFIED WATER ABSORBENT RESIN
- 专利标题(中):包含改性吸水树脂的吸收构件
- 申请号:PCT/US2007/008475 申请日:2007-04-04
- 公开(公告)号:WO2007120561A2 公开(公告)日:2007-10-25
- 发明人: MATSUMOTO, Makoto , MITSUKAMI, Yoshiro , IWAMURA, Taku
- 申请人: THE PROCTER & GAMBLE COMPANY , MATSUMOTO, Makoto , MITSUKAMI, Yoshiro , IWAMURA, Taku
- 申请人地址: One Procter & Gamble Plaza Cincinnati, OH 45202 US
- 专利权人: THE PROCTER & GAMBLE COMPANY,MATSUMOTO, Makoto,MITSUKAMI, Yoshiro,IWAMURA, Taku
- 当前专利权人: THE PROCTER & GAMBLE COMPANY,MATSUMOTO, Makoto,MITSUKAMI, Yoshiro,IWAMURA, Taku
- 当前专利权人地址: One Procter & Gamble Plaza Cincinnati, OH 45202 US
- 代理机构: Eileen L. Hughett
- 优先权: JP2006-108083 20060410; JP2006-157582 20060606
- 主分类号: C08J3/28
- IPC分类号: C08J3/28
摘要:
This invention is to provide an absorbent member and a method for making such an absorbent member. The absorbent member comprises modified water absorbent having good production efficiency, good absorbency against pressure, good absorption speed, gel strength, good liquid permeability, and the like. The modified water absorbent resin is made by a method, which comprises (i) a mixing step comprising mixing a water absorbent resin, water, and a water-soluble radical polymerization initiator without addition of an ethylenically unsaturated monomer, to obtain a water absorbent resin composition, and (ii) an irradiating step comprising irradiating said water absorbent resin composition obtained in the mixing step with active energy rays, wherein the surface water content of said water absorbent resin in said water absorbent resin composition at least at any point of time in the irradiating step (ii) is controlled to a level of not lower than 3.0% by weight based on 100% by weight of the water absorbent resin. Preferably, the amount of water mixed in said step (i) exceeds 20 parts by weight and is not more than 100 parts by weight based on 100 parts by weight of the water absorbent resin.
摘要(中):
本发明提供一种吸收体及其制造方法。 吸收体包括具有良好生产效率,对压力良好的吸收性,良好的吸收速度,凝胶强度,良好的液体渗透性等的改性吸水剂。 改性吸水性树脂通过以下方法制备:(i)混合步骤,包括混合吸水性树脂,水和水溶性自由基聚合引发剂,而不加入烯属不饱和单体,得到吸水性树脂 组合物,和(ii)照射步骤,包括用活性能量射线照射在混合步骤中获得的吸水性树脂组合物,其中吸水性树脂组合物中的吸水性树脂的表面水含量至少在任何时间点 基于100重量%的吸水性树脂,将照射步骤(ii)控制在不低于3.0重量%的水平。 优选地,基于100重量份的吸水性树脂,所述步骤(i)中混合的水的量超过20重量份且不超过100重量份。
IPC结构图谱:
C | 化学;冶金 |
--C08 | 有机高分子化合物;其制备或化学加工;以其为基料的组合物 |
----C08J | 加工;配料的一般工艺过程;不包括在C08B,C08C,C08F,C08G或C08H小类中的后处理 |
------C08J3/00 | 高分子物质的处理或配料的工艺过程 |
--------C08J3/28 | .用波能或粒子辐射处理 |