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    • 3. 发明授权
    • Process for producing fine silver particle colloidal dispersion, fine silver particle colloidal dispersion, and conductive silver film
    • 用于生产细银颗粒胶体分散体,细银颗粒胶体分散体和导电银膜的方法
    • US08524786B2
    • 2013-09-03
    • US12805162
    • 2010-07-15
    • Kenji KatoMasaya Yukinobu
    • Kenji KatoMasaya Yukinobu
    • B22F9/24
    • B22F1/0022B22F9/24B22F2998/00B82Y30/00H01B1/22Y10S977/773Y10S977/777
    • A process for producing a fine silver particle colloidal dispersion which can simply form conductive silver layers and antimicrobial coatings by screen printing or the like. The process is characterized by having a reaction step of allowing an aqueous silver nitrate solution to react with a mixed solution of an aqueous iron(II) sulfate solution and an aqueous sodium citrate solution to form an agglomerate of fine silver particles, a filtration step of filtering the resultant agglomerate of fine silver particles to obtain a cake of the agglomerate of fine silver particles, a dispersion step of adding pure water to the cake to obtain a first fine silver particle colloidal dispersion of a water system in which dispersion the fine silver particles have been dispersed in the pure water, and a concentration and washing step of concentrating and washing the first fine silver particle colloidal dispersion of a water system.
    • 一种能够通过丝网印刷等简单地形成导电性银层和抗菌涂层的细银粒子胶体分散体的制造方法。 该方法的特征在于具有使硝酸银水溶液与硫酸铁水溶液和柠檬酸钠水溶液的混合溶液反应以形成细银颗粒的附聚物的反应步骤,过滤步骤 过滤所得到的细银粒子附聚物,得到细银粒子附聚物的饼状物;分散步骤,向滤饼中加入纯水,得到水系的第一微细银粒子胶体分散液,其中分散有细银粒子 已经分散在纯水中,以及浓缩和洗涤水系的第一细银粒子胶体分散体的浓缩和洗涤步骤。
    • 4. 发明授权
    • Fine silver particle colloidal dispersion, coating liquid for silver film formation, processes for producing these, and silver film
    • 细银粒子胶体分散体,银膜形成用涂布液,制造方法以及银膜
    • US07922938B2
    • 2011-04-12
    • US12085185
    • 2005-12-08
    • Hiroyuki TanakaKenji KatoMasaya Yukinobu
    • Hiroyuki TanakaKenji KatoMasaya Yukinobu
    • H01B1/22C09D1/00
    • B22F9/24B01J13/0043B22F1/0022B22F2998/10B82Y30/00B22F1/0096
    • A process for producing a fine silver particle colloidal dispersion the fine silver particles of which have a larger average particle diameter than those in the conventional Carey-Lea process and also which has superior dispersion stability. An aqueous silver nitrate solution is allowed to react with a mixed solution of an aqueous iron(II) sulfate solution and an aqueous sodium citrate solution, and the resultant reaction fluid containing an agglomerate of fine silver particles is left at 0 to 100° C. to obtain an agglomerate of fine silver particles having grown into granular particles. Next, this agglomerate of fine silver particles having grown into granular particles is filtered, and, to the resultant cake of the agglomerate of fine silver particles, pure water is added to obtain a fine silver particle colloidal dispersion having an average particle diameter of 20 to 200 nm. This fine silver particle colloidal dispersion is concentrated and washed, further followed by addition of an organic solvent containing dimethyl sulfoxide, to obtain a coating liquid for silver film formation.
    • 一种制备细银粒子胶体分散体的方法,其细银粒子具有比常规Carey-Lea方法更大的平均粒径,并且其具有优异的分散稳定性。 使硝酸银水溶液与硫酸铁水溶液和柠檬酸钠水溶液的混合溶液反应,将含有细银粒子附聚物的反应液保持在0〜100℃。 以获得生长成粒状颗粒的细银粒子的附聚物。 接下来,将生长成粒状颗粒的细银粒子附聚物过滤,向所得到的细银粒子附聚物的滤饼中加入纯水,得到平均粒径为20〜 200nm。 将该细银粒子胶体分散体浓缩并洗涤,然后加入含有二甲基亚砜的有机溶剂,得到银膜形成用涂布液。
    • 5. 发明授权
    • Process for producing fine silver particle colloidal dispersion, fine silver particle colloidal dispersion, and conductive silver film
    • 用于生产细银颗粒胶体分散体,细银颗粒胶体分散体和导电银膜的方法
    • US07786178B2
    • 2010-08-31
    • US10553240
    • 2004-04-27
    • Kenji KatoMasaya Yukinobu
    • Kenji KatoMasaya Yukinobu
    • B01F3/12B22F9/24H01B1/22H01B13/00
    • B22F1/0022B22F9/24B22F2998/00B82Y30/00H01B1/22Y10S977/773Y10S977/777
    • A process for producing a fine silver particle colloidal dispersion which can simply form conductive silver layers and antimicrobial coatings by screen printing or the like. The process is characterized by having a reaction step of allowing an aqueous silver nitrate solution to react with a mixed solution of an aqueous iron(II) sulfate solution and an aqueous sodium citrate solution to form an agglomerate of fine silver particles, a filtration step of filtering the resultant agglomerate of fine silver particles to obtain a cake of the agglomerate of fine silver particles, a dispersion step of adding pure water to the cake to obtain a first fine silver particle colloidal dispersion of a water system in which dispersion the fine silver particles have been dispersed in the pure water, and a concentration and washing step of concentrating and washing the first fine silver particle colloidal dispersion of a water system.
    • 一种能够通过丝网印刷等简单地形成导电性银层和抗菌涂层的细银粒子胶体分散体的制造方法。 该方法的特征在于具有使硝酸银水溶液与硫酸铁水溶液和柠檬酸钠水溶液的混合溶液反应以形成细银颗粒的附聚物的反应步骤,过滤步骤 过滤所得到的细银粒子附聚物,得到细银粒子附聚物的饼状物;分散步骤,向滤饼中加入纯水,得到水系的第一微细银粒子胶体分散液,其中分散有细银粒子 已经分散在纯水中,以及浓缩和洗涤水系的第一细银粒子胶体分散体的浓缩和洗涤步骤。
    • 9. 发明申请
    • Fine Silver Particle Colloidal Dispersion, Coating Liquid for Silver Film Formation, Processes for Producing These, and Silver Film
    • 细银粒子胶体分散体,银膜形成用涂布液,制造方法和银膜
    • US20090256118A1
    • 2009-10-15
    • US12085185
    • 2005-12-08
    • Hiroyuki TanakaKenji KatoMasaya Yukinobu
    • Hiroyuki TanakaKenji KatoMasaya Yukinobu
    • H01B1/22C09D1/00
    • B22F9/24B01J13/0043B22F1/0022B22F2998/10B82Y30/00B22F1/0096
    • A process for producing a fine silver particle colloidal dispersion the fine silver particles of which have a larger average particle diameter than those in the conventional Carey-Lea process and also which has superior dispersion stability. An aqueous silver nitrate solution is allowed to react with a mixed solution of an aqueous iron(II) sulfate solution and an aqueous sodium citrate solution, and the resultant reaction fluid containing an agglomerate of fine silver particles is left at 0 to 100° C. to obtain an agglomerate of fine silver particles having grown into granular particles. Next, this agglomerate of fine silver particles having grown into granular particles is filtered, and, to the resultant cake of the agglomerate of fine silver particles, pure water is added to obtain a fine silver particle colloidal dispersion having an average particle diameter of 20 to 200 nm. This fine silver particle colloidal dispersion is concentrated and washed, further followed by addition of an organic solvent containing dimethyl sulfoxide, to obtain a coating liquid for silver film formation.
    • 一种制备细银粒子胶体分散体的方法,其细银粒子具有比常规Carey-Lea方法更大的平均粒径,并且其具有优异的分散稳定性。 使硝酸银水溶液与硫酸铁水溶液和柠檬酸钠水溶液的混合溶液反应,将含有细银粒子附聚物的反应液保持在0〜100℃。 以获得生长成粒状颗粒的细银粒子的附聚物。 接下来,将生长成粒状颗粒的细银粒子附聚物过滤,向所得到的细银粒子附聚物的滤饼中加入纯水,得到平均粒径为20〜 200nm。 将该细银粒子胶体分散体浓缩并洗涤,然后加入含有二甲基亚砜的有机溶剂,得到银膜形成用涂布液。
    • 10. 发明申请
    • Process for producing fine silver particle colloidal dispersion, fine silver particle colloidal dispersion, and conductive silver film
    • 用于生产细银颗粒胶体分散体,细银颗粒胶体分散体和导电银膜的方法
    • US20110012068A1
    • 2011-01-20
    • US12805162
    • 2010-07-15
    • Kenji KatoMasaya Yukinobu
    • Kenji KatoMasaya Yukinobu
    • H01B1/02C09D5/16
    • B22F1/0022B22F9/24B22F2998/00B82Y30/00H01B1/22Y10S977/773Y10S977/777
    • A process for producing a fine silver particle colloidal dispersion which can simply form conductive silver layers and antimicrobial coatings by screen printing or the like. The process is characterized by having a reaction step of allowing an aqueous silver nitrate solution to react with a mixed solution of an aqueous iron(II) sulfate solution and an aqueous sodium citrate solution to form an agglomerate of fine silver particles, a filtration step of filtering the resultant agglomerate of fine silver particles to obtain a cake of the agglomerate of fine silver particles, a dispersion step of adding pure water to the cake to obtain a first fine silver particle colloidal dispersion of a water system in which dispersion the fine silver particles have been dispersed in the pure water, and a concentration and washing step of concentrating and washing the first fine silver particle colloidal dispersion of a water system.
    • 一种能够通过丝网印刷等简单地形成导电性银层和抗菌涂层的细银粒子胶体分散体的制造方法。 该方法的特征在于具有使硝酸银水溶液与硫酸铁水溶液和柠檬酸钠水溶液的混合溶液反应以形成细银颗粒的附聚物的反应步骤,过滤步骤 过滤所得到的细银粒子附聚物,得到细银粒子附聚物的饼状物;分散步骤,向滤饼中加入纯水,得到水系的第一微细银粒子胶体分散液,其中分散有细银粒子 已经分散在纯水中,以及浓缩和洗涤水系的第一细银粒子胶体分散体的浓缩和洗涤步骤。