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
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