Patent ID: 8394507
Filing Date: 2013-03-12
Classification: B32B,C08J,C23C,C25D,Y10T

Abstract:
1. A metal-clad polymer article comprising: (i) a polymeric material which at room temperature has a coefficient of linear thermal expansion in the range between 30×10 (ii) a metallic material having a microstructure which is fine-grained with an average grain size between 2 and 5,000 nm and/or an amorphous microstructure, wherein said metallic material consists essentially of pure nickel or comprises a nickel alloy, said metallic material forming a metallic material layer having a thickness between 10 microns and 500 microns and said metallic material having a coefficient of linear thermal expansion at room temperature in all directions in the range between −5.0×10 (iii) at least one intermediate layer between the polymeric material and the metallic material layer, said at least one intermediate layer includes a metallic layer consisting essentially of pure nickel or comprises a nickel alloy; (iv) an interface formed between the polymeric material and the at least one intermediate layer and an interface formed between the at least one intermediate layer and the metallic material layer; and (v) an anchoring structure at least at said interface between the polymeric material and the at least one intermediate layer comprising recesses and/or protrusions to increase the interface area and provide enhanced physical bond at the interface between the polymeric material and the at least one intermediate layer, (vi) wherein said metal-clad polymer article exhibits a pull-off strength between the polymeric material and the metallic material layer exceeding 200 psi as determined by ASTM D4541-02 Method A-E.