×

Corrosion free hard coated metal substrates

  • US 4,950,365 A
  • Filed: 12/22/1988
  • Issued: 08/21/1990
  • Est. Priority Date: 12/22/1988
  • Status: Expired due to Fees
First Claim
Patent Images

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.

View all claims
  • 5 Assignments
Timeline View
Assignment View
    ×
    ×