公开(公告)号：US08486307B2

公开(公告)日：2013-07-16

申请号：US12811598

申请日：2008-12-25

申请人： Kimitaka Sato ,  Shinya Sasaki ,  Taro Nakanoya

发明人： Kimitaka Sato ,  Shinya Sasaki ,  Taro Nakanoya

IPC分类号： H01B1/22 ,  H01B1/02

CPC分类号： B22F9/24 ,  B22F1/0018 ,  B22F1/0022 ,  B22F1/0044 ,  B22F1/0062 ,  B22F2998/00 ,  B22F2999/00 ,  B82Y30/00 ,  C09D11/52 ,  H01B1/22 ,  Y10T428/2991 ,  B22F1/0059 ,  B22F2301/255 ,  B22F2304/054

摘要： Provided are silver nanoparticles having a good affinity (that is, dispersibility) for y-butyrolactone (C4H6O2), an organic solvent which has a relatively high boiling point though having a relatively small molecular weight, and has a low viscosity and a low surface tension and which has little irritating odor. The above problems are solved by providing a silver micropowder excellent in affinity for at least y-butyrolactone, which comprises silver particles processed to adsorb at least one of 1,4-dihydroxy-2-naphthoic acid (C11H8O4) and gallic acid (C7H6O5) on the surfaces thereof and having an X-ray crystal particle diameter DX of from 1 to 40 nm, preferably from 1 to 15 nm. The invention also provides a silver ink obtained by dispersing silver particles processed to adsorb an organic compound having a carboxyl group on the surfaces thereof and having an X-ray crystal particle diameter DX of from 1 to 40 nm, preferably from 1 to 15 nm (or having a mean particle diameter DTEM, as measured through TEM microscopy, of from 3 to 40 nm, preferably from 4 to 15 nm), in y-butyrolactone.

摘要翻译： 提供了对于γ-丁内酯（C 4 H 6 O 2）具有良好的亲和性（即分散性）的银纳米颗粒，这种有机溶剂虽然具有相对较小的分子量，但具有较高的沸点，并且具有低粘度和低表面张力 并且几乎没有刺激性气味。 通过提供对至少γ-丁内酯的亲和性优异的银微粉来解决上述问题，所述银微粒包括被处理吸附1,4-二羟基-2-萘甲酸（C 11 H 8 O 4）和没食子酸（C 7 H 6 O 5）中的至少一种的银粒子， 其表面上的X射线晶体粒径DX为1〜40nm，优选为1〜15nm。 本发明还提供一种银粉，其通过将经加工的银颗粒分散在其表面上吸附具有羧基的有机化合物并且具有1至40nm，优选1至15nm的X射线晶体粒径DX（ 或具有3至40nm，优选4至15nm的平均粒径DTEM（通过TEM显微镜测量），在γ-丁内酯中。

公开(公告)号：US20100288159A1

公开(公告)日：2010-11-18

申请号：US12811598

申请日：2008-12-25

申请人： Kimitaka Sato ,  Shinya Sasaki ,  Taro Nakanoya

发明人： Kimitaka Sato ,  Shinya Sasaki ,  Taro Nakanoya

IPC分类号： C09D11/00 ,  B32B5/16

CPC分类号： B22F9/24 ,  B22F1/0018 ,  B22F1/0022 ,  B22F1/0044 ,  B22F1/0062 ,  B22F2998/00 ,  B22F2999/00 ,  B82Y30/00 ,  C09D11/52 ,  H01B1/22 ,  Y10T428/2991 ,  B22F1/0059 ,  B22F2301/255 ,  B22F2304/054

摘要： Provided are silver nanoparticles having a good affinity (that is, dispersibility) for γ-butyrolactone (C4H6O2), an organic solvent which has a relatively high boiling point though having a relatively small molecular weight, and has a low viscosity and a low surface tension and which has little irritating odor.The above problems are solved by providing a silver micropowder excellent in affinity for at least γ-butyrolactone, which comprises silver particles processed to adsorb at least one of 1,4-dihydroxy-2-naphthoic acid (C11H8O4) and gallic acid (C7H6O5) on the surfaces thereof and having an X-ray crystal particle diameter Dx of from 1 to 40 nm, preferably from 1 to 15 nm. The invention also provides a silver ink obtained by dispersing silver particles processed to adsorb an organic compound having a carboxyl group on the surfaces thereof and having an X-ray crystal particle diameter Dx of from 1 to 40 nm, preferably from 1 to 15 nm (or having a mean particle diameter DTEM, as measured through TEM microscopy, of from 3 to 40 nm, preferably from 4 to 15 nm), in γ-butyrolactone.

摘要翻译： 本发明提供对γ-丁内酯（C 4 H 6 O 2）具有良好的亲和性（即分散性）的银纳米颗粒，其是具有相对较高沸点的有机溶剂，虽然具有较小的分子量，并且具有低粘度和低表面张力 并且几乎没有刺激性气味。 通过提供一种对至少γ-丁内酯的亲和性优异的银微粉来解决上述问题，所述银微粒包含加工成吸附1,4-二羟基-2-萘甲酸（C 11 H 8 O 4）和没食子酸（C 7 H 6 O 5）中的至少一种的银粒子， 其表面上的X射线结晶粒径Dx为1〜40nm，优选为1〜15nm。 本发明还提供一种银粉，其通过将经加工的银颗粒分散在其表面上吸附具有羧基的有机化合物并具有1至40nm，优选1至15nm的X射线晶体粒径Dx（ 或者通过TEM显微镜测得的平均粒径DTEM为3〜40nm，优选为4〜15nm）的γ-丁内酯。

公开(公告)号：US08916068B2

公开(公告)日：2014-12-23

申请号：US12811583

申请日：2008-12-25

申请人： Kimitaka Sato ,  Taku Okano ,  Taro Nakanoya

发明人： Kimitaka Sato ,  Taku Okano ,  Taro Nakanoya

IPC分类号： H01B1/22 ,  B32B5/16 ,  C09D11/02 ,  B05D7/14 ,  C09D5/24 ,  B22F1/00 ,  B22F9/24 ,  C09C1/62 ,  C09D11/52 ,  B82Y30/00

CPC分类号： C09C1/62 ,  B22F1/0018 ,  B22F1/0022 ,  B22F9/24 ,  B22F2998/00 ,  B22F2999/00 ,  B82Y30/00 ,  C01P2002/88 ,  C01P2004/04 ,  C01P2004/64 ,  C01P2006/40 ,  C09D5/24 ,  C09D11/52 ,  H01B1/22 ,  Y10T428/2991 ,  B22F2301/255 ,  B22F2304/054 ,  B22F1/0059

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 μΩ·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 μΩ·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.

摘要翻译： 提供涂覆有保护材料并能够比以前更显着降低烧结温度的银微粉。 银微粉包含被处理以吸附其表面上的己胺（C6H13-NH2）的银粒子，其平均粒径DTEM为3〜20nm，X射线晶体粒径DX为1〜20nm。 当与有机介质混合制备银涂料时，银微粉具有形成电阻率不大于25μΩ·cmgr·cm的导电膜的特性，并且当由其形成的涂膜在空气中焙烧时 即使在100℃下烧成，也可以形成电阻率不大于25μΩ·cm·cm的导电膜。 银微粉可以通过将单粒分散在有机介质中的银颗粒分散体涂覆在具有不饱和键并具有200-400的分子量的伯胺A的银颗粒和己胺中来制备，然后保持 该混合物在5至80℃下搅拌，从而形成沉淀的颗粒。

公开(公告)号：US20100283013A1

公开(公告)日：2010-11-11

申请号：US12811583

申请日：2008-12-25

申请人： Kimitaka Sato ,  Taku Okano ,  Taro Nakanoya

发明人： Kimitaka Sato ,  Taku Okano ,  Taro Nakanoya

IPC分类号： H01B1/22 ,  B32B5/16 ,  C09D11/02 ,  B05D7/14

CPC分类号： C09C1/62 ,  B22F1/0018 ,  B22F1/0022 ,  B22F9/24 ,  B22F2998/00 ,  B22F2999/00 ,  B82Y30/00 ,  C01P2002/88 ,  C01P2004/04 ,  C01P2004/64 ,  C01P2006/40 ,  C09D5/24 ,  C09D11/52 ,  H01B1/22 ,  Y10T428/2991 ,  B22F2301/255 ,  B22F2304/054 ,  B22F1/0059

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 μΩ·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 μΩ·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.

摘要翻译： 提供涂覆有保护材料并能够比以前更显着降低烧结温度的银微粉。 银微粉包含被处理以吸附其表面上的己胺（C6H13-NH2）的银粒子，其平均粒径DTEM为3〜20nm，X射线晶体粒径DX为1〜20nm。 当与有机介质混合制备银涂料时，银微粉具有形成电阻率不大于25μΩ·cmgr·cm的导电膜的特性，并且当由其形成的涂膜在空气中焙烧时 即使在100℃下烧成，也可以形成电阻率不大于25μΩ·cm·cm的导电膜。 银微粉可以通过将单粒分散在有机介质中的银颗粒分散体涂覆在具有不饱和键并具有200-400的分子量的伯胺A的银颗粒和己胺中来制备，然后保持 该混合物在5至80℃下搅拌，从而形成沉淀的颗粒。