专利检索 ap:("Takashi Yasumura" OR "Toshiya Kato" OR "Kenichi Hamada" OR "Tetsuya Harada") AND inv:"Toshiya Kato" 第 2 页

11.

发明授权
Water absorbent material and absorbent article using same 失效

公开(公告)号：US06969750B2

公开(公告)日：2005-11-29

申请号：US10088107

申请日：2001-07-26

申请人： Hisakazu Tanaka , Toshiya Kato , Shigeki Ideguchi , Hideyuki Ishizu , Yoshiki Hasegawa

发明人： Hisakazu Tanaka , Toshiya Kato , Shigeki Ideguchi , Hideyuki Ishizu , Yoshiki Hasegawa

IPC分类号： A61L15/60 , C08F283/04 , C08F290/14 , C08F26/06

CPC分类号： C08F290/145 , A61L15/60 , C08F283/04 , C08F290/14 , Y10T442/673 , Y10T442/699 , C08L51/08

摘要： The water absorbent material of the present invention is composed of a copolymer of an anhydropolyamino acid having at least one ethylenically unsaturated double bond in a molecule, a water-soluble monomer having an ethylenically unsaturated double bond and polysaccharides, and has high water absorption ratio and high water absorption rate in pure water or water having a low ion content and also has high absorption properties for high concentration salt-containing solutions.