Laminated plates for chemical milling

Details Laminated plates for chemical milling Laminated plates for chemical milling

1977-12-02

1978-11-14

Powell, William A.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

96 363, 96 86R, 101456, 101458, 156330, 156332, 156334, 156656, 156659, 428209, 428213, 428215, 428908, B41N 100, B32B 1508, B32B 2738, G03C 194

Patent

active

041256611

ABSTRACT:
Metal plates, e.g., of magnesium, zinc or copper, suitable for chemical milling and etching operations to produce photoengraving plates, printed circuit boards, nameplates, etc., comprising a metal layer and, adhered thereto, a plastic film layer having a thickness substantially smaller than that of the metal layer. The resulting composite laminates have proved outstandingly useful in permitting the employment of thinner metal layers, thus resulting in lighter weight and less expensive plates, yet retaining the required resistance to the chemical milling or etching process without impairment of mechanical stability and other desirable properties of the plate.

REFERENCES:
patent: 2999016 (1961-09-01), Beeber et al.
patent: 3100760 (1963-08-01), Brown et al.
patent: 3201239 (1965-08-01), Neugebauer et al.
patent: 3222175 (1965-12-01), Rasch
patent: 3305416 (1967-02-01), Kahan et al.
patent: 3448516 (1969-06-01), Buck
patent: 3607474 (1971-09-01), Hensdale
patent: 3660088 (1972-05-01), Lundsager
patent: 3765894 (1973-10-01), Mellan
patent: 3816273 (1974-06-01), Snyder
patent: 3960622 (1976-06-01), Hofling

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