Composite sheet and method of manufacturing
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United States of America Patent
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Jul 8, 2016
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Jan 16, 2014
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A method of manufacturing a composite sheet wherein the composite sheet includes at least two outer metal layers and at least one intermediate polymer layer wherein the polymer layer comprises a thermoplastic polymer. The method steps include providing at least a first and a second metal substrate and at least one intermediate polymer layer; coating at least one of the metal substrates with an adhesion promoter layer by plasma coating, wherein plasma coating includes: providing a process gas, generating a plasma, injecting a precursor for providing the adhesion promoter layer into the generated plasma or plasma afterglow, moving or placing the at least one metal strip into the generated plasma or plasma afterglow and depositing a plasma polymerized adhesion promoter layer on the surface of inner side of the metal substrate; and laminating the intermediate polymer layer and the two outer metal layers to build a composite material.
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