发明名称 |
SILVER MICROPOWDER, SILVER INK, SILVER COATING, AND METHODS FOR PRODUCTION OF THESE MATERIALS |
摘要 |
Provided is a silver micropowder coated with a protective material and capable of more drastically reducing the sintering temperature than before. The silver micropowder comprises silver particles processed to adsorb hexylamine (C6H13—NH2) on the surfaces thereof and having a mean particle diameter DTEM of from 3 to 20 nm or an X-ray crystal particle diameter DX of from 1 to 20 nm. The silver micropowder has the property of forming a conductive film having a specific resistivity of not more than 25 μ&OHgr;·cm when it is mixed with an organic medium to prepare a silver coating material and when a coating film formed of it is fired in air at 120° C. Even when fired at 100° C., it may form a conductive film having a specific resistivity of not more than 25 μ&OHgr;·cm. The silver micropowder can be produced by mixing a silver particle dispersion, as monodispersed in an organic medium, of silver particles coated with a primary amine A having an unsaturated bond and having a molecular weight of from 200 to 400, and hexylamine, and then keeping the mixture at 5 to 80° C. with stirring to thereby form precipitated particles. |
申请公布号 |
US2010283013(A1) |
申请公布日期 |
2010.11.11 |
申请号 |
US20080811583 |
申请日期 |
2008.12.25 |
申请人 |
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发明人 |
SATO KIMITAKA;OKANO TAKU;NAKANOYA TARO |
分类号 |
H01B1/22;B05D7/14;B32B5/16;C09D11/02 |
主分类号 |
H01B1/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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