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US 4,725,333 AGranted
Metal-glass laminate and process for producing same
AssigneeOlin Corporation
InventorsCharles J. Leedecke, Norman G. Masse, Michael J. Pryor
Life of this patent
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Abstract
This application is directed to a process of forming a laminate. The steps include providing a glass and a metal foil of either deoxidized copper alloy or oxygen-free copper alloy. The glass is heated at a temperature of between about 600.degree. to about 1025.degree. C. with a viscosity between about 10.sup.3 to about 10.sup.8 poise. Then it is pressed against the foil and cooled to chemically bond it to the foil and form a laminate of a metal foil and a substantially pore-free glass.
Claims18
The process of forming a metal-glass laminate, comprising the steps of:
- providing a glass having a viscosity of between about 10.sup.3 to about 10.sup.8 poise at a temperature from about 600.degree. to about 1025.degree. C.;
- providing a first strip of metal foil from a material selected from the group consisting of deoxidized copper alloy and oxygen free copper alloy;
- heating said glass to form a strip of glass with a viscosity from about 10.sup.3 to about 10.sup.8 poise;
- providing a processing atmosphere consisting essentially of an inert or reducing gas;
- pressing said strip of heated glass against said first strip of metal foil within said processing atmosphere at a pressure of less than about 350 gr/sq. in. whereby blistering is substantially prevented within the foil;
- chemically bonding said strip of glass to said first strip of metal foil to form a laminate of said first strip of metal foil and a layer of substantially pore-free glass.
3 more elements
A metal-glass laminate, comprising:
- a first strip of metal foil selected from the group consisting of deoxidized copper alloy and oxygen-free copper alloy;
- and
- a layer of substantially pore-free glass, said layer of substantially pore-free glass being chemically bonded to said first strip of metal foil whereby said first strip of metal foil is substantially free of blisters.
Dependencies are inferred from the claim text.