Method for the production of homogeneous coatings of two or more metals and/or metal compounds

US4510182A · kind A · utility

Assignees

• Ruhrchemie Aktiengesellschaft · DE
• Maschinenfabrik Augsburg-Nurnberg · DE

Inventors

• Boy Cornils · Dinslaken, DE
• Bela Tihanyi · Oberhausen, DE
• Jurgen Weber · Oberhausen, DE
• Werner DeWin · Dinslaken, DE
• Edwin Erben · Munich, DE
• August Muhlratzer · Gilching, DE

Key dates

• Filing date: Apr 26, 1984
• Grant date: Apr 9, 1985
• Expiry date: Apr 26, 2004

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S526/943
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A method for the production of homogeneous coatings of a substance comprising at least two metals and/or metal compounds on a substrate, which method comprises depositing the substance from a gas or liquid phase from dinuclear or polynuclear mixed metal compounds via a four step process comprising heating the substance to 85-90% of a final temperature over a period of 5 to 20 minutes, reducing the temperature to a second temperature which is 2/3 of said final temperature, maintaining the second temperature for 11/2 to 21/2 hours, raising the second temperature over a period of 20 to 40 minutes, and maintaining the final temperature for 1 to 2 hours. The coated materials are, for example, useful for coating solar collectors with an .alpha. of at least 0.70 and an .epsilon. no greater than 0.30.