Composite structure and production method thereof

Abstract

A composite structure comprising a metallic sheet and two thermoplastic material layers of a layer (A) and a layer (B) which are placed in turn and integrated with each other, characterized in that the layer (A) comprises a thermoplastic material capable of being thermally fusedly adhered to the thermoplastic material in the layer (B), the metallic sheet and the layer (A) are adhered to each other, and the layers (A) and (B) are thermally fusedly adhered to each other; and a process for producing a composite structure which comprises installing, on a metallic sheet by coating, a layer (A) comprising a thermoplastic material capable of being thermally fusedly adhered to a thermoplastic material in a layer (B) to be placed thereon, and further installing the layer (B) on the layer (A) by thermally fusedly adhering a desirable thermoplastic material on the (A).

What is claimed is:  
     
         1 . A composite structure comprising a metallic sheet and two thermoplastic material layers of a layer (A) and a layer (B) which are placed in turn and integrated with each other, characterized in that said layer (A) comprises a thermoplastic material capable of being thermally fusedly adhered to the thermoplastic material in the layer (B), said metallic sheet and said layer (A) are adhered to each other, and said layers (A) and (B) are thermally fusedly adhered to each other.  
     
     
         2 . The composite structure according to  claim 1 , wherein the layer (A) comprises a modified polyolefinic resin, and the layer (B) comprises a styrenic thermoplastic elastomer.  
     
     
         3 . The composite structure according to  claim 1 , wherein the metallic sheet is that subjected to non-electrolytic nickel plating.  
     
     
         4 . The composite structure according to  claim 1 , which is used as a sealing member.  
     
     
         5 . The composite structure according to  claim 4 , wherein the sealing member is a gasket fitted to a cover for a hard disc drive.  
     
     
         6 . A process for producing a composite structure which comprises installing, on a metallic sheet by coating, a layer (A) comprising a thermoplastic material capable of being thermally fusedly adhered to a thermoplastic material in a layer (B) to be placed thereon, and further installing the layer (B) on said layer (A) by thermally fusedly adhering a desirable thermoplastic material on said layer (A).