Silver Anti-Tarnishing Agent, Silver Anti-Tarnishing Resin Composition, Silver Anti-Tarnishing Method, And Light-Emitting Diode Using Same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
공개
국제특허분류(IPC7판)
C09K-015/32
C07F-003/06
C08K-005/098
H01L-033/52
출원번호
US-0641703
(2011-04-20)
공개번호
US-0032853
(2013-02-07)
우선권정보
JP-2010-098444 (2010-04-22)
국제출원번호
PCT/JP2011/002322
(2011-04-20)
§371/§102 date
20121017
(20121017)
발명자
/ 주소
Kawata, Yoshihiro
Sasaki, Chie
Yarita, Masato
Aoki, Shizuka
Nakanishi, Masataka
출원인 / 주소
NIPPON KAYAKU KABUSHIKI KAISHA
인용정보
피인용 횟수 :
0인용 특허 :
0
초록▼
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 pho
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.
대표청구항▼
1. Use of a zinc salt or a zinc complex for manufacturing a silver anti-tarnish agent containing at least either a zinc salt or a zinc complex as an effective component. 2. The use according to claim 1, wherein the silver anti-tarnish agent is a silver anti-tarnish agent for a light-emitting diode.
1. Use of a zinc salt or a zinc complex for manufacturing a silver anti-tarnish agent containing at least either a zinc salt or a zinc complex as an effective component. 2. The use according to claim 1, wherein the silver anti-tarnish agent is a silver anti-tarnish agent for a light-emitting diode. 3. The use according to claim 2, wherein the silver anti-tarnish agent is a silver anti-tarnish agent containing at least one kind selected from the group consisting of a carboxylic acid compound 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, as an effective component. 4. The use according to claim 2, wherein the silver anti-tarnish agent is a silver anti-tarnish agent containing an aliphatic carboxylic acid zinc salt having a carbon atom number of 3 to 20 as an effective component. 5. The use according to claim 4, wherein said aliphatic carboxylic acid zinc salt is a saturated or unsaturated fatty acid zinc salt. 6. The use according to claim 4, wherein said aliphatic carboxylic acid zinc salt is at least one kind selected from the group consisting of zinc 2-ethylhexylate, zinc neodecanoate, zinc laurate, zinc ricinoleate, zinc stearate, zinc undecylenate and zinc naphthenate. 7. The use according to claim 4, wherein said aliphatic carboxylic acid zinc salt is a zinc salt of an alicyclic carboxylic acid having at least either a cyclopentane or cyclohexane skeleton. 8. The use according to claim 2, wherein the silver anti-tarnish agent is a silver anti-tarnish agent containing a zinc salt of a phosphate ester and/or a phosphoric acid as an effective component. 9. The use according to claim 2, wherein the silver anti-tarnish agent is a silver anti-tarnish agent containing a zinc acetylacetonate complex as an effective component. 10. The use according to claim 2, wherein the silver anti-tarnish agent further contains a solvent, and contains 0.005 to 1% by weight of at least either a zinc salt or a zinc complex as an effective component in said solvent. 11. A silver anti-tarnish resin composition for a light-emitting diode, which contains at least either a zinc salt or a zinc complex and a sealing resin, said at least either a zinc salt or a zinc complex being contained in an amount of 0.05 to 10 parts by weight based on 100 parts by weight of said resin. 12. The silver anti-tarnish resin composition according to claim 11, wherein a cured product of the resin composition has a hardness of over 70 as measured by Durometer Type A of JIS K 7215. 13. The silver anti-tarnish resin composition according to claim 11, wherein the cured product of the resin composition has a refractive index of over 1.45. 14. The silver anti-tarnish resin composition according to claim 11, wherein the sealing resin is a sealing resin containing a silicone skeleton. 15. A silver anti-tarnish method, wherein the silver anti-tarnish agent according to claim 1 is applied to a silver surface. 16. The silver anti-tarnish method according to claim 15, the silver surface is a silver surface of a light-emitting diode. 17. The silver anti-tarnish method according to claim 15, wherein the silver anti-tarnish agent according to claim 1 further contains a solvent, and contains 0.005 to 1% by weight of at least either a zinc salt or a zinc complex as an effective component in said solvent. 18. A silver anti-tarnish method, wherein the silver anti-tarnish resin composition according to claim 11 is applied to a silver surface of a light-emitting diode. 19. A light-emitting diode having, on the silver surface, a dried film or a cured product coat of a silver anti-tarnish agent containing at least either a zinc salt or a zinc complex. 20. The light-emitting diode according to claim 19, which is sealed with a sealing resin on the dried film or the cured product coat of the silver anti-tarnish agent. 21. A light-emitting diode having a silver surface sealed with the silver anti-tarnish resin composition according to claim 11. 22. The light-emitting diode according to claim 19 or 20, the sealing resin is a silicone resin which is curable by addition reaction, and after curing forms, a cured product having a hardness of over 70 as measured by Durometer Type A of JIS K 7215 after curing. 23. A silver anti-tarnish agent containing at least either a zinc salt or a zinc complex as an effective component, said effective component being contained in a ratio of 0.005 to 1 part by weight based on 100 parts by weight of a diluent. 24. The silver anti-tarnish agent according to claim 23, wherein the diluent is an organic solvent. 25. The silver anti-tarnish agent according to claim 23, wherein the diluent is a silicone resin.
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