发明授权
US4051277A Rigid-when-wet paperboard containers and their manufacture 失效
刚性干燥纸板容器及其制造

Rigid-when-wet paperboard containers and their manufacture
摘要:
Rigid-when-wet, but foldable, corrugated paperboard and process of making same by applying phenolic resin to contiguous surfaces of the outer liner, the medium, and the inner liner without substantially altering the hygroscopicity of the exposed faces of the liners, and adhering the three components together before the resin is cured.
信息查询
0/0