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1. 发明申请

US20090030134A1 Inorganic Hollow Particle, Process For Producing The Same, And Composition Containing The Same 有权
标题翻译：无机中空颗粒，其生产方法和含有它的组合物
公开(公告)号：US20090030134A1
公开(公告)日：2009-01-29
申请号：US12278156
申请日：2007-04-24
申请人： Shuji Sasaki , Yasuhisa Nishi , Shinji Yamano , Mitsuyoshi Iwasa
发明人： Shuji Sasaki , Yasuhisa Nishi , Shinji Yamano , Mitsuyoshi Iwasa
IPC分类号： C08K3/36 , C01B33/12
CPC分类号： C01B33/18 , C01B13/322 , C01P2004/32 , C01P2004/34 , C01P2006/12 , C03C11/002 , H05K1/0373 , H05K2201/0133 , H05K2201/0209 , H05K2201/0254 , Y10T428/2982
摘要： The present invention herein provides fine inorganic hollow powder having a high hollowness rate, which can be incorporated into, for instance, a low dielectric rubber or resin composition. The inorganic hollow powder has an average hollowness rate of higher than 70% by volume and an average particle size ranging from 3 to 20 μm and the powder preferably has an average hollowness rate ranging from 75 to 85% by volume, an average particle size ranging from 5 to 15 μm, a maximum particle size of not more than 25 μm, a specific surface area of not more than 10 m2/g, an average sphericity degree of not less than 0.90 and a purity of not less than 99% by mass. The inorganic hollow powder can be prepared by a method comprising the steps of forming a flame using a burner provided with at least a triplet-tubular portion comprising, in order from the outermost side, a combustion-improving gas-supply pipe, a combustible gas-supply pipe and an inorganic raw powder-supply pipe assembled together; injecting, into the flame at a high discharge speed, inorganic raw powder having a specific particle size through the inorganic raw powder-supply pipe, while the powder is entrained with a carrier gas having a specific relative humidity, to thus subject the powder to a heat-treatment.
摘要翻译：本发明提供具有高中空率的细小的无机中空粉末，其可以结合到例如低介电橡胶或树脂组合物中。无机中空粉末的平均中空率高于70体积％，平均粒径为3〜20μm，粉末的平均中空率优选为75〜85体积％，平均粒径为 5〜15μm，最大粒径为25μm以下，比表面积为10m2 / g以下，平均球形度为0.90以上，纯度为99质量％以上。无机中空粉末可以通过以下方法制备：使用设置有至少三重管状部分的燃烧器形成火焰的步骤，其包括从最外侧开始的燃烧改善气体供给管，可燃气体供应管和无机原料粉供应管组装在一起; 通过无机原料粉供给管以高放电速度向火焰喷射具有特定粒径的无机原料粉末，同时将粉末夹在具有特定相对湿度的载气中，从而将粉末置于热处理。

2. 发明授权

US07816428B2 Inorganic hollow particle, process for producing the same, and composition containing the same 有权
标题翻译：无机中空颗粒，其制造方法和含有它们的组合物
公开(公告)号：US07816428B2
公开(公告)日：2010-10-19
申请号：US12278156
申请日：2007-04-24
申请人： Shuji Sasaki , Yasuhisa Nishi , Shinji Yamano , Mitsuyoshi Iwasa
发明人： Shuji Sasaki , Yasuhisa Nishi , Shinji Yamano , Mitsuyoshi Iwasa
IPC分类号： C08J9/32
CPC分类号： C01B33/18 , C01B13/322 , C01P2004/32 , C01P2004/34 , C01P2006/12 , C03C11/002 , H05K1/0373 , H05K2201/0133 , H05K2201/0209 , H05K2201/0254 , Y10T428/2982
摘要： The present invention herein provides fine inorganic hollow powder having a high hollowness rate, which can be incorporated into, for instance, a low dielectric rubber or resin composition. The inorganic hollow powder has an average hollowness rate of higher than 70% by volume and an average particle size ranging from 3 to 20 μm and the powder preferably has an average hollowness rate ranging from 75 to 85% by volume, an average particle size ranging from 5 to 15 μm, a maximum particle size of not more than 25 μm, a specific surface area of not more than 10 m2/g, an average sphericity degree of not less than 0.90 and a purity of not less than 99% by mass. The inorganic hollow powder can be prepared by a method comprising the steps of forming a flame using a burner provided with at least a triplet-tubular portion comprising, in order from the outermost side, a combustion-improving gas-supply pipe, a combustible gas-supply pipe and an inorganic raw powder-supply pipe assembled together; injecting, into the flame at a high discharge speed, inorganic raw powder having a specific particle size through the inorganic raw powder-supply pipe, while the powder is entrained with a carrier gas having a specific relative humidity, to thus subject the powder to a heat-treatment.
摘要翻译：本发明提供具有高中空率的细小的无机中空粉末，其可以结合到例如低介电橡胶或树脂组合物中。无机中空粉末的平均中空率高于70体积％，平均粒径为3〜20μm，粉末的平均中空率优选为75〜85体积％，平均粒径为 5〜15μm，最大粒径为25μm以下，比表面积为10m 2 / g以下，平均球形度为0.90以上，纯度为99质量％以上。无机中空粉末可以通过以下方法制备：使用设置有至少三重管状部分的燃烧器形成火焰的步骤，其包括从最外侧开始的燃烧改善气体供给管，可燃气体供应管和无机原料粉供应管组装在一起; 通过无机原料粉供给管以高放电速度向火焰喷射具有特定粒径的无机原料粉末，同时将粉末夹在具有特定相对湿度的载气中，从而将粉末置于热处理。

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