发明名称 |
Composite foil, particularly a toilet seat support, as well as process |
摘要 |
A composite foil formed from at least two layers in which at least one normally water-insoluble sealing layer comprises a non-porous layer connected to at least one water soluble layer. The water-insoluble layer is soluble in a non-neutral medium and the water soluble layer is (a) water soluble or (b) water insoluble, but soluble in a non-neutral medium.
|
申请公布号 |
US4469728(A) |
申请公布日期 |
1984.09.04 |
申请号 |
US19800221288 |
申请日期 |
1980.12.30 |
申请人 |
BELZ, ROLAND K. |
发明人 |
BELZ, ROLAND K. |
分类号 |
B32B27/00;A47K13/14;A47K13/18;A47L13/18;A61F5/445;A61G9/00;B32B27/08;B32B27/10;B32B37/15;B65D65/38;C08F20/60;(IPC1-7):A47K13/14 |
主分类号 |
B32B27/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|