Document Type and Number:
Japanese Patent JPS5339613
Kind Code:
B2
Abstract:
A selective black coating on aluminum is provided which is characterized by a high absorptivity in the visible and near infrared regions of the spectrum (0.38 to 1.9 microns) and a low emissivity for radiation of longer-(infrared)-wavelength (greater than 6 microns). The black or near black coating is applied by immersing the aluminum in a bath containing soluble borate and silicate salts.
Application Number:
JP2230976A
Publication Date:
October 23, 1978
Filing Date:
March 03, 1976
Export Citation:
International Classes:
C23C22/00; C23C22/66; F24J2/48
Previous Patent: JPS5339612
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