公开(公告)号：US20130032853A1

公开(公告)日：2013-02-07

申请号：US13641703

申请日：2011-04-20

申请人： Yoshihiro Kawata ,  Chie Sasaki ,  Masato Yarita ,  Shizuka Aoki ,  Masataka Nakanishi

发明人： Yoshihiro Kawata ,  Chie Sasaki ,  Masato Yarita ,  Shizuka Aoki ,  Masataka Nakanishi

IPC分类号： C09K15/32 ,  C07F3/06 ,  C08K5/098 ,  H01L33/52

CPC分类号： C23F11/1673 ,  C08G77/12 ,  C08G77/20 ,  C08K5/098 ,  C08L83/04 ,  C09D7/48 ,  C09D7/63 ,  C23F11/124 ,  H01L33/44 ,  H01L33/56 ,  H01L33/60 ,  C08L83/00

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.

摘要翻译： 本发明涉及作为有效成分的锌盐和/或锌络合物，优选选自碳原子数为1〜8的羧酸锌盐中的至少一种的银防晦暗剂 3〜20，磷酸锌盐，磷酸酯锌盐和羰基化合物锌络合物; 通过将银抗晦暗剂涂覆在银部上来防止银部件变色的银防晦暗方法。 根据本发明，可以防止由于硫系气体而导致的镀银部分等银部件的损坏。 本发明特别用作发光二极管的银防晦暗剂，并且通过将本发明的银防晦暗剂涂覆到本发明的二氧化钛上，可以防止发光二极管的银部分的晦暗和照度的降低 银部分，例如用于覆盖银部分的发光二极管的镀银部分。