Corrosion free hard coated metal substrates
First Claim
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1. A process for coating carbon steel substrates comprising:
- (a) applying onto the surface of said substrate a first coat of a thin hard coated layer of a metal compound selected from the group consisting of titanium nitride, titanium carbide, titanium carbonitride, zirconium nitride, zirconium carbide and zirconium carbonitride; and
(b) applying onto the surface of said first coat a second coat of parylene.
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Abstract
A process for making an article comprising a substrate, a first coating on the surface of said substrate of a thin, hard coated metal compound, and a second coating on the surface of said first coat of a thin uniform conformal polymeric material.
43 Citations
17 Claims
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1. A process for coating carbon steel substrates comprising:
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(a) applying onto the surface of said substrate a first coat of a thin hard coated layer of a metal compound selected from the group consisting of titanium nitride, titanium carbide, titanium carbonitride, zirconium nitride, zirconium carbide and zirconium carbonitride; and (b) applying onto the surface of said first coat a second coat of parylene. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A process for coating carbon steel tool or instrument substrates that are subject to at least moderate amounts of physical wear comprising:
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(a) applying onto the surface of said substrate a first coat of 2-5 microns of titanium nitride or zirconium nitride by cathodic plasma arc deposition; and (b) applying onto the surface of said first coat a second coat of 2-3 microns of parylene. - View Dependent Claims (16, 17)
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Specification