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Light-transmitting substrate provided with a light-absorbing coating, light absorbing coating as well as method of preparing a light-absorbing coating
Light-transmitting substrate provided with a light-absorbing coating, light absorbing coating as well as method of preparing a light-absorbing coating
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机译:设有吸光涂层的透光基板,吸光涂层以及制备吸光涂层的方法
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摘要
The present invention relates to a light-transmitting substrate (1) which is at least provided with a light-absorbing coating (3). The light-absorbing coating comprises stabilized pigments which are incorporated in a sol-gel matrix. The light absorbing coating comprises silica particles having a size between 5 and 100 nanometers and alumina particles having a size between 5 and 50 nanometers. The total volume concentration of pigments, silica and alumina particles in the light-absorbing coating is between 20 and 65 percent. The volume concentration of silica particles is between 5 and 40 percent and the volume concentration of alumina particles between 1 and 15 percent.
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