Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1989-07-21
1990-11-13
Ryan, Patrick
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428409, 428457, 428901, 156 60, 427 96, 430311, B32B 900
Patent
active
049701070
ABSTRACT:
To make a composite article comprising a copper element and an adhesive material adhesively bonded to a surface thereof, the surface of the copper element is provided with knife-shaped elongate projections whose opposite flanks are at an average angle of less than 60.degree. to each other. The knife-shaped elongate projections may include rod-shaped projections much smaller than the knife-shaped projections projecting outwardly from the surface of the knife-shaped projections. The knife-shaped projections may be formed by electroless plating and the rod-shaped projections by oxidation and optionally reduction. Bonding strength is improved.
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Akahoshi Haruo
Kogawa Kiyonori
Murakami Kanji
Nagai Akira
Suzuki Yoshihiro
Hitachi , Ltd.
Ryan Patrick
LandOfFree
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