| 发明名称 |
Polyurethane polymers comprising macrocyclic crown ethers in the polymer backbone |
| 摘要 |
The present invention relates to polyurethane polymers comprising macrocyclic polyether moieties in the polymer backbone. The polymers may be formed into films which are useful for a variety of purposes.
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| 申请公布号 |
US4438251(A) |
申请公布日期 |
1984.03.20 |
| 申请号 |
US19830494975 |
申请日期 |
1983.05.16 |
| 申请人 |
ARMSTRONG WORLD INDUSTRIES, INC. |
发明人 |
HERWEH, JOHN E. |
| 分类号 |
C08G18/32;(IPC1-7):C08G18/32 |
主分类号 |
C08G18/32 |
| 代理机构 |
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