| 发明名称 |
POLYURETHANE HYDROGELS AND PROCESS FOR THEIR MANUFACTURE |
| 摘要 |
The hydrogels consist essentially of the polyurethane of polyoxyethylene. The crosslinking is carried out by a reaction of a polyfunctional isocyanate with the polyoxyethylene in solution in a non-aqueous solvent. Transparent hydrogels are obtained, having a high swelling ratio in the presence of water and good mechanical properties. |
| 申请公布号 |
DE3461717(D1) |
申请公布日期 |
1987.01.29 |
| 申请号 |
DE19843461717 |
申请日期 |
1984.01.10 |
| 申请人 |
ESSILOR INTERNATIONAL CIE GENERALE D'OPTIQUE |
发明人 |
GNANOU, YVES;HILD, GERARD |
| 分类号 |
C08G18/00;C08G18/08;C08G18/48;C08G18/66;C08G18/78;C08G18/80;(IPC1-7):C08G18/48;G02C7/04 |
主分类号 |
C08G18/00 |
| 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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