Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1991-12-23
1992-11-24
Powell, William A.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
156634, 156656, 1566591, 156665, 156902, 428458, 430318, B32B 300, B32B 1500, B44C 122, C23F 100
Patent
active
051659875
ABSTRACT:
Foil includes a first etch-resistant layer which at least partially covers the neighboring layer and has a weight per unit area of 0.5-20 g/m.sup.2, a first aluminum or aluminum alloy layer having a thickness of about 30 .mu.m to 150 .mu.m, a dielectric layer of plastic having a thickness of about 5 to 100 .mu.m, a second aluminum or aluminum alloy layer having a thickness of about 30 .mu.m to 150 .mu.m, and a second etch-resistant layer which at least partially covers the neighboring layer and has a weight per unit area of 0.5 to 20 g/m.sup.2.
REFERENCES:
patent: 4292388 (1981-09-01), Ikeda et al.
patent: 4935093 (1990-06-01), Reeb
Bubeck Dietrich
Kolb Franz
Oehlmann Klaus
Werner Martin
Powell William A.
Swiss Aluminium Ltd.
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