Treated anodized metal article and method of making

Patent metadata

Field	Value
Publication number	US-11959178-B2
Application number	US-202217953485-A
Country	US
Kind code	B2
Filing date	Sep 27, 2022
Priority date	Mar 31, 2017
Publication date	Apr 16, 2024
Grant date	Apr 16, 2024

Abstract

A method is disclosed for treating an anodized metal surface. According to the method, polynuclear clusters comprising aluminum oxide hydroxide are applied to the anodized metal surface.

First claim

What is claimed is:

1. An article comprising:
a metal body;
an anodized surface on said metal body; and
polynuclear clusters comprising aluminum oxide hydroxide, disposed on said anodized surface, wherein the polynuclear aluminum oxide hydroxide clusters comprise complexes according to the formula: [AlO 4 Al 12 (OH) 24 (H 2 O) 12 ] 7+ *[(7/n) X −n ] 7− where X −n represents ‘−n’ charge-bearing X counter-ion species and (7/n) X −n are needed to neutralize the total complex charge.

2. The article of claim 1 , further comprising a coagulant different than the polynuclear aluminum oxide hydroxide clusters disposed on the anodized surface.

Assignees

• Hamilton Sundstrand Corp

Inventors

• Opalka Susanne M
• Li Weina
• Sangiovanni Joseph J
• Jaworowski Mark R
• Zafiris Georgios S
• Zhang Weilong
• Ding Zhongfen

Classifications

• C23F11/06 Primary

  in markedly alkaline liquids · CPC title

• C01F7/02

  Aluminium oxide; Aluminium hydroxide; Aluminates · CPC title

• C25D11/246 Primary

  for sealing layers · CPC title

• C25D11/08

  containing inorganic acids · CPC title

• C25D11/10

  containing organic acids · CPC title