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Silver discoloration prevention agent, silver discoloration prevention resin composition, silver discoloration prevention method, and light emitting diode using the same
Silver discoloration prevention agent, silver discoloration prevention resin composition, silver discoloration prevention method, and light emitting diode using the same
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机译:防止银变色剂,防止银变色树脂组合物,防止银变色的方法以及使用其的发光二极管
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摘要
The present invention relates to a silver anti-tarnish agent having, as an effective component, a zinc salt and/or a zinc complex, preferably at least one kind selected from the group consisting of a carboxylic acid zinc salt having a carbon atom number of 3 to 20, a phosphoric acid zinc salt, a phosphate ester zinc salt and a carbonyl compound zinc complex; a silver anti-tarnish method for preventing tarnish of a silver part by applying said silver anti-tarnish agent to the silver part. According to the present invention, tarnish of a silver part such as a silver-plated part due to a sulfur-based gas can be prevented. The present invention is useful particularly as a silver anti-tarnish agent for a light-emitting diode and allows preventing tarnish of a silver part of a light-emitting diode and reduction in illuminance by applying the silver anti-tarnish agent of the present invention to a silver part such as a silver-plated part of a light-emitting diode for covering the silver part.
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