Welded product from non-porous material and porous material

Details Welded product from non-porous material and porous material Welded product from non-porous material and porous material

B - Operations, Transporting

32

B

B32B 3/02 (2006.01) B29C 65/00 (2006.01) B29C 65/02 (2006.01) B29C 65/08 (2006.01) B32B 5/18 (2006.01) B32B 7/04 (2006.01) B32B 27/36 (2006.01) B29C 65/04 (2006.01) B29C 65/18 (2006.01)

Patent

CA 2472596

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.

L'invention concerne un produit assemblé par fusion d'une partie de stratifié contentant un matériau non poreux et un matériau poreux, caractérisé en ce que la section transversale de la partie assemblée par fusion comprend au moins trois couches: (A) une couche constituée uniquement d'un articles non poreux, (B) une couche de matériau composite contenant du matériau non poreux mélangé à du matériau poreux, et (c) une couche constituée uniquement de matériau poreux. La limite entre la couche de matériau composite (B) et la couche de matériau poreux (c) possèdent une longueur (L<SB>BC</SB>) comprise entre 1,2 et 2,5 mm. Le produit assemblé par fusion présente une excellente résistance au démoulage.

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