Multi-layer material comprising flexible graphite which is reinforced mechanically, electrically and thermally by a metal and a process for the production thereof
November 7, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3492197 Composite graphite sheets Vermicular expanded graphite composite material Flat gasket laminate of expanded graphite foil and metallic reinforcement layer Process for the preparation of molding flexible graphite granules and a molded graphite product produced therefrom Molded gland packing Method for the insulation of heated metalic materials Gaskets Pressure relief disc Support for rotary target of x-ray tubes InventorsAssigneeApplicationNo. 610139 filed on 11/07/1990US Classes:428/612, Microscopic interfacial wave or roughness257/E23.106, Laminates or multilayers, e.g., direct bond copper ceramic substrates (EPO)428/343, Adhesive outermost layer428/344, Next to metal428/346, Heat or solvent activated or sealable428/408, SELF-SUSTAINING CARBON MASS OR LAYER WITH IMPREGNANT OR OTHER LAYER428/457, Of metal428/614, Laterally noncoextensive components (e.g., embedded, etc.)428/621, With additional, spatially distinct nonmetal component428/634Free carbon containing componentExaminersPrimary: Lesmes, George F.Assistant: Zirker, D. R. Attorney, Agent or FirmForeign Patent References
International ClassB32B 015/04Foreign Application Priority Data1989-11-16 FRAbstractA multi-layer material comprises at least two layers of flexible material, including one layer based on electrically conductive, expanded recompressed graphite and another layer based on a metal, wherein the layer of graphite has at least one face thereof covered at every point by a layer of metal and in direct electrical contact with the layer of metal, and wherein the layer of metal is obtained by electrodeposition or by chemical deposit of at least one metal on the layer of graphite in such a way that the layer of metal adheres directly to the layer of graphite and closely matches the micro-relief thereof.Field of SearchOf metalSELF-SUSTAINING CARBON MASS OR LAYER WITH IMPREGNANT OR OTHER LAYER Adhesive outermost layer Next to metal Laterally noncoextensive components (e.g., embedded, etc.) With additional, spatially distinct nonmetal component Free carbon containing component Microscopic interfacial wave or roughness | |
