发明名称 |
Water-swellable crosslinked polymer, production process therefor, and measurement method for pore volume of swollen crosslinked polymer |
摘要 |
The present invention provides a water-swellable crosslinked polymer that displays high absorption capacity when put under an increased pressure in a state combined with a fibrous base matter. The water-swellable crosslinked polymer has a total pore volume of 60 v/v % or more relative to the entire amount of the absorption of a physiological salt solution into the polymer with regard to pores with a pore size of 51-270 ANGSTROM when swollen with the physiological salt solution, or the polymer has a total pore volume of 80 v/v % or more relative to the entire amount of the absorption of ion-exchanged water into the polymer with regard to pores with a pore size of 51-270 ANGSTROM when swollen with the ion-exchanged water.
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申请公布号 |
US6110984(A) |
申请公布日期 |
2000.08.29 |
申请号 |
US19970946452 |
申请日期 |
1997.10.07 |
申请人 |
NIPPON SHOKUBAI CO., LTD. |
发明人 |
FUJIMARU, HIROTAMA;YONEMURA, KOICHI;HARADA, NOBUYUKI |
分类号 |
A61L15/60;C08F8/00;C08J3/24;(IPC1-7):C08J9/28 |
主分类号 |
A61L15/60 |
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