发明名称 |
Aqueous polyurethane gel, process for producing the same, and use thereof |
摘要 |
The present invention provides a polyurethane hydrogel prepared by crosslinking and curing a terminal isocyanate-containing polyurethane resin (C) in the presence of water at a water:resin (C) weight ratio of more than 9:1,the resin (C) being a reaction product of a polyisocyanate (A) and a liquid polyol (B), andthe polyol (B) containing 70 wt. % or more of a random copolymer prepared by copolymerization of ethylene oxide (a) and propylene oxide (b) at an ethylene oxide (a): propylene oxide (b) weight ratio of 50:50 to 90:10. The present invention further provides a production process and use of the polyurethane hydrogel.
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申请公布号 |
US6528577(B2) |
申请公布日期 |
2003.03.04 |
申请号 |
US20010926783 |
申请日期 |
2001.12.19 |
申请人 |
KANSAI PAINT CO., LTD.;DAI-ICHI KOGYO SEIYAKU CO., LTD. |
发明人 |
ISOZAKI OSAMU;NODA TOSHIKI |
分类号 |
C08G18/10;C08G18/48;C09K17/30;(IPC1-7):C08J3/00;C08K3/20;C08L75/00 |
主分类号 |
C08G18/10 |
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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