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High-absorptance high-emittance anodic coating

Patent
US-5948542-A
Inventor

LE HUONG GIANG (US)

CHESTERFIELD JOHN L (US)

Assignee

MC DONNELL DOUGLAS CORP (US)

ALUMINUM FINISHING CORP (US)

Country
United States
Dates
  • Priority:
    1996/03/18
  • Grant:
    1999/09/07
Description
This web page summarizes information in PubChem about patent US-5948542-A. This includes chemicals mentioned, as reported by PubChem contributors, as well as other content, such as title, abstract, and International Patent Classification (IPC) codes. To read more about how this page was constructed, please visit the PubChem patents help page.

1 Abstract

A colored anodic coating for use on surfaces of substrates, e.g. aluminum substrates in which it is desirable to maintain a high solar absorptance (α) and a high infrared emittance (ε), particularly in low earth orbit space environments. This anodic coating is preferably a dark colored coating, and even more preferably a black coating. This coating allows a touch temperature within an acceptable design range to preclude burning of an astronaut in case of contact, but also allows a solar radiation absorption in an amount such that an α/ε ratio of unity is achieved. The coating of the invention comprises a first layer in the form of an acid anodized colored anodic layer for achieving a high solar absorptance and a second or high emittance layer in the form of a clear acid anodized layer for achieving a high emittance. The entire coating is quite thin, e.g. 1-2 mils and is quite stable in a hostile space environment of the type encountered in a low earth orbit. The coating is obtained by first creating the high emittance clear anodized coating on the metal surface followed by anodizing using a colored anodizing process.

2 Full Text

3 Important Dates

3.1 Priority Date

1996/03/18

3.2 Filing Date

1996/03/18

3.3 Publication Date

1999/09/07

3.4 Grant Date

1999/09/07

4 Inventor

LE HUONG GIANG (US)

CHESTERFIELD JOHN L (US)

5 Assignee

MC DONNELL DOUGLAS CORP (US)

ALUMINUM FINISHING CORP (US)

6 Country

United States

7 Linked Chemicals

7.1 PubChem Compounds

7.2 PubChem Substances

8 Patent Family

9 Classification

9.1 IPC

F24J2/40 (inventive)

C25D11/16

B64G1/52 (inventive)

B64G1/50 (inventive)

C25D11/12 (inventive)

C25D11/14 (inventive)

C25D11/24

B64G1/22 (inventive)

9.2 CPC

C25D11/14 (inventive)

C25D11/12 (inventive)

B64G1/226 (inventive)

Y02E10/40

B64G1/52 (inventive)

C25D11/16

F24S50/80 (inventive)

B64G1/50 (inventive, first)

C25D11/246

10 Citations

11 Cited By

12 Similar Patents

13 Information Sources

  1. Google Patents
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