| 摘要 |
An object of the present invention is to provide a welded product exhibiting excellent resistance to delamination made from a non-porous material and a porous material. <??>A welded product of the present invention prepared by welding a part of a laminate containing a non-porous material and a porous material, characterized in that the cross section of the welded portion comprises at least three layers comprising a layer (A) comprising the non-porous material alone, a composite material layer (B) containing the non-porous material and the porous material in admixture, and a layer (c) comprising the porous material alone, wherein the boundary line between the composite material layer (B) and the layer (c) comprising porous material has a length (LBC) in the range of 1.2 mm to 2.5 mm. <IMAGE> |
