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吸水剤
专利权人:
株式会社日本触媒
发明人:
鳥井 一司,柴田 浩史,岩村 卓,入江 好夫,大六 頼道,光上 義朗,町田 さやか
申请号:
JP2011158357
公开号:
JP4932954B2
申请日:
2011.07.19
申请国别(地区):
JP
年份:
2012
代理人:
摘要:
An object of the present invention is to provide a water absorbent having excellent gel properties and showing excellent properties when used in a water-absorbing material of a sanitary/hygienic material such as paper diaper. Moreover, another object of the present invention is to provide a water absorbent which is safe and excellent in liquid permeability, and in which an amount of liquid permeability improver for improving the liquid permeability is reduced. The water absorbent is made from a water-absorbing resin prepared by a specific polymerization method and having a high degree of cross-linking, a high liquid holding property and a high gel strength (its swelling pressure of gel layer of is 35 kdyne/cm 2 or more). This water absorbent is further processed to have a particular particle size distribution (95wt% or more of its particles are less than 850µm but not less than 106µm, and logarithmic standard deviation (ö) is in a range of 0.25 to 0.45) and then surface cross-linked. After that, a liquid permeability improver is added therein.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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