发明名称 NOBLE METAL COMPOSITE PLATE AND ITS MANUFACTURE
摘要 PROBLEM TO BE SOLVED: To provide a noble metal composite plate which may have little manufacturing steps and little number of components. SOLUTION: The noble metal composite plate comprises a thin plate 1 made of a noble metal or noble metal alloy, and a transparent decorative reinforcing material 4 having a pattern 22 made of a partly opaque portion for covering at least one surface of front and rear surfaces of the plate 1 to reinforce the plate 1. The plate 1 is obtained by repeatedly rolling a lump raw material of gold having a purity of 99. 99% or more to finish its thickness to, for example, 15μm, and cutting it in a calling card size. And, as the thickness of the plate 1, a range of about 3 to 100μm is suitable. A raw material of the material 4 is, for example, a hard coated laminate film made of an acrylic resin or glass fiber-filled resin having an excellent wear resistance and a scratch resistance.
申请公布号 JPH11235781(A) 申请公布日期 1999.08.31
申请号 JP19980039368 申请日期 1998.02.20
申请人 MITSUBISHI MATERIALS CORP 发明人 SAWAI KATSUO
分类号 B44C3/02;B32B15/08;(IPC1-7):B32B15/08 主分类号 B44C3/02
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