发明名称 |
Water-absorbent resins and manufacturing methods thereof. |
摘要 |
<p>Water-absorbent resins which are prepared by mixing polysaccharides with amino acids (amino acids and/or polymers of amino acids) and heating the mixture so as to cause a crosslinking reaction therein. Each of the water-absorbent resins has a water-absorbing ratio of not less than 10 g/g with respect to physiologic saline as well as having a rate of biodegradability of not less than 10 %. Moreover, its water-absorbing ratio under pressure is not less than 10 ml/g with respect to physiologic saline. The water-absorbing ratio under pressure is measured by using a measuring device that is constituted of a weighing machine, a container, an air-intake pipe, a conduit, a glass filter, and a measuring section. The water-absorbent resins are superior in both water-absorbing capacity and biodegradability, and are capable of maintain their water-absorbing capacity even under pressure. <IMAGE></p> |
申请公布号 |
EP0637594(A2) |
申请公布日期 |
1995.02.08 |
申请号 |
EP19940112065 |
申请日期 |
1994.08.02 |
申请人 |
NIPPON SHOKUBAI CO., LTD. |
发明人 |
YONEMURA, KOICHI;HITOMI, KAZUHISA;MITSUHASHI, AKIKO;HAYASHI, TAKAYA;HARADA, NOBUYUKI |
分类号 |
C08B11/12;A61F13/15;A61F13/49;A61F13/53;A61L15/22;A61L15/28;A61L15/60;C08B15/00;C08B31/00;C08J3/24;C08L101/16;(IPC1-7):C08B37/00 |
主分类号 |
C08B11/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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