Invention Grant
- Patent Title: Method of sealing an anodized metal article
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Application No.: US15469663Application Date: 2017-03-27
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Publication No.: US10801123B2Publication Date: 2020-10-13
- Inventor: Zhongfen Ding , Robert R. Hebert , Weilong Zhang , Bart Antonie van Hassel , Mark R. Jaworowski , Michael A. Kryzman , Blair A. Smith , Georgios S. Zafiris , Promila Bhaatia , Mark A. Brege , Shaahin Amini , Vijay V. Pujar
- Applicant: UNITED TECHNOLOGIES CORPORATION
- Applicant Address: US CT Farmington
- Assignee: RAYTHEON TECHNOLOGIES CORPORATION
- Current Assignee: RAYTHEON TECHNOLOGIES CORPORATION
- Current Assignee Address: US CT Farmington
- Agency: Carlson, Gaskey & Olds, P.C.
- Main IPC: C25D11/26
- IPC: C25D11/26 ; C25D11/30 ; C25D11/20 ; C25D11/10 ; C25D11/08

Abstract:
A method of coating a metal article is disclosed that includes immersing a metal article having an exterior anodized layer in a bath containing a chemically active corrosion inhibitor, and applying a voltage to the article during the immersing, the voltage driving the chemically active corrosion inhibitor from the bath into the exterior anodized layer. An article is also disclosed that has a substrate comprising a metal, and a porous anodized layer formed on an exterior surface of the substrate that is infiltrated with a chemically active corrosion inhibitor, the anodized layer having an inward-facing region and an outward-facing region, the anodized layer having a greater concentration of chemically active corrosion inhibitors in the inward-facing region than in the outward-facing region.
Public/Granted literature
- US20180274121A1 METHOD OF SEALING AN ANODIZED METAL ARTICLE Public/Granted day:2018-09-27
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