Composition and method for inhibiting corrosion

Patent metadata

Field	Value
Publication number	US-9441305-B2
Application number	US-201414146768-A
Country	US
Kind code	B2
Filing date	Jan 3, 2014
Priority date	Jan 3, 2014
Publication date	Sep 13, 2016
Grant date	Sep 13, 2016

Abstract

A corrosion inhibiting composition including a liquid carrier having a surface tension of at most about 35 dynes/cm and an electrically conductive nanomaterial dispersed in the carrier.

First claim

What is claimed is:

1. A plated structure comprising:
a metallic substrate;
chrome plating on said metallic substrate, said chrome plating defining microcracks; and
a corrosion inhibiting composition applied to said chrome plating, said corrosion inhibiting composition comprising:
a liquid carrier having a surface tension of at most about 35 dynes/cm; and
an electrically conductive nanomaterial dispersed in said carrier, said electrically conductive nanomaterial comprising at least one of carbon nanoplatelets, graphene nanoplatelets, carbon nanotubes and carbon nanorods,

wherein at least a portion of said electrically conductive nanomaterial is received in said microcracks.

2. The plated structure of claim 1 wherein said surface tension is at most about 30 dynes/cm.

3. The plated structure of claim 1 wherein said surface tension is at most about 25 dynes/cm.

4. The plated structure of claim 1 wherein said liquid carrier comprises a dye.

5. The plated structure of claim 1 wherein at least a portion of said electrically conductive nanomaterial has at least one dimension ranging from about 1 to about 500 nanometers.

6. The plated structure of claim 1 wherein at least a portion of said electrically conductive nanomaterial has at least one dimension ranging from about 1 to about 100 nanometers.

7. The plated structure of claim 1 wherein at least a portion of said electrically conductive nanomaterial has at least one dimension ranging from about 1 to about 10 nanometers.

8. The plated structure of claim 1 wherein said electrically conductive nanomaterial comprises graphene nanoplatelets.

9. The plated structure of claim 1 wherein said electrically conductive nanomaterial comprises carbon nanotubes.

10. The plated structure of claim 1 wherein a weight ratio of said liquid carrier to said electrically conductive nanomaterial ranges from about 120:1 to about 30:1.

11. The plated structure of claim 10 wherein said weight ratio ranges from about 80:1 to about 60:1.

Assignees

• Boeing Co

Inventors

• Lawless Lawrence M
• Griffin Bruce M
• Scott Craig W

Classifications

• C23C18/1689

  After-treatment · CPC title

• C25D5/48

  After-treatment of electroplated surfaces · CPC title

• C09D5/08

  Anti-corrosive paints · CPC title

• B05D3/12

  by mechanical means · CPC title

• B05D3/007

  After-treatment · CPC title