公开(公告)号：US5833746A

公开(公告)日：1998-11-10

申请号：US929091

申请日：1997-09-15

申请人： Mitsuyoshi Iwasa ,  Yukio Sakaguchi ,  Hirofumi Simazoe

发明人： Mitsuyoshi Iwasa ,  Yukio Sakaguchi ,  Hirofumi Simazoe

IPC分类号： C01B33/18 ,  C04B14/06 ,  C08L63/00 ,  C08L101/00 ,  C09C1/30 ,  H01L23/29 ,  H01L23/31 ,  C04B14/04 ,  C09C1/28

CPC分类号： C04B14/062 ,  C09C1/30 ,  C01P2004/32 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2006/22 ,  C01P2006/90

摘要： A silica filler containing from 30 to 90 wt % of particles having a particle size of at least 30 .mu.m, wherein the roundness of the particles having a particle size of at least 30 .mu.m, is from 0.83 to 0.94.

摘要翻译： 含有30〜90重量％的粒径为30μm以上的粒子的二氧化硅填料，其中粒径至少为30μm的粒子的圆度为0.83〜0.94。

公开(公告)号：US08476340B2

公开(公告)日：2013-07-02

申请号：US13156678

申请日：2011-06-09

申请人： Yasuhisa Nishi ,  Mitsuyoshi Iwasa

发明人： Yasuhisa Nishi ,  Mitsuyoshi Iwasa

IPC分类号： C08K7/00

CPC分类号： C08K3/36 ,  C01B33/12 ,  C04B35/62665 ,  C04B35/62813 ,  C04B35/62892 ,  C04B2235/3418 ,  C04B2235/528 ,  C04B2235/5296 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5472 ,  C09K21/02 ,  H01L23/295 ,  H01L2924/0002 ,  Y10T428/2982 ,  H01L2924/00

摘要： The present invention provides ceramic powder capable of being incorporated into rubber or a resin for the preparation of a composition, which shows excellent heat resistance and flame retardancy and which is used, for instance, as a semiconductor-sealing material. The ceramic powder has a multi-peak frequency distribution pattern having at least two peaks as a particle size distribution as determined using a laser diffraction-scattering type particle size-analyzer, wherein the maximum particle size for the first peak ranges from 40 to 80 μm and that for the second peak ranges from 3 to 8 μm and wherein the rate of the particles having a particle size of not less than 20 μm and less than 40 μm is not more than 20% by mass (inclusive of 0% by mass).

摘要翻译： 本发明提供能够结合到橡胶中的陶瓷粉末或用于制备组合物的树脂，其显示出优异的耐热性和阻燃性，并且其用作例如半导体密封材料。 陶瓷粉末具有多峰频率分布图，其具有至少两个峰，作为使用激光衍射 - 散射型粒度分析仪确定的粒度分布，其中第一峰的最大粒径范围为40至80μm 第二峰的范围为3〜8μm，粒径为20μm以上且小于40μm的粒子的比例为20质量％以下（含有0质量％）以下， 。

公开(公告)号：US20100222487A1

公开(公告)日：2010-09-02

申请号：US12063087

申请日：2007-03-08

申请人： Yasuhisa Nishi ,  Hiroaki Yoshigai ,  Mitsuyoshi Iwasa

发明人： Yasuhisa Nishi ,  Hiroaki Yoshigai ,  Mitsuyoshi Iwasa

IPC分类号： C08K3/36 ,  C04B35/14 ,  C03B19/10

CPC分类号： C01B13/145 ,  C01B33/12 ,  C01B33/18 ,  C01B33/181 ,  C01P2004/34 ,  C01P2004/51 ,  C01P2004/61 ,  C04B20/002 ,  C04B26/02 ,  C04B26/26 ,  C04B38/009 ,  C08K7/24 ,  H05K1/024 ,  H05K1/0373 ,  H05K2201/0209 ,  H05K2201/0254 ,  Y02W30/94 ,  Y10T428/2982 ,  C04B18/146 ,  C04B20/1051 ,  C04B35/14 ,  C04B38/0045 ,  C04B14/30 ,  C04B20/008 ,  C08L21/00

摘要： Inorganic hollow powder is provided having a high purity, an enhanced fineness and a high hollowness. Specifically, inorganic hollow powder is provided having an average particle diameter of 1 to 5 μm, the maximum particle diameter of 20 μm or less, a particle size distribution standard deviation of 3 μm or less, and an average hollowness of 35 to 70 vol %. The inorganic hollow powder is obtained, for instance, by supplying, via an inorganic feed material powder supply pipe at a discharge rate of 80 m/s or more, inorganic raw material powder having a specific surface area of 500 m2/g or more and an average particle diameter of 7 μm or less, into a flame formed by a burner comprising at least a triple pipe portion sequentially arranged with, in order from outside, a combustion supporting gas supply pipe, a combustible gas supply pipe and the inorganic feed material powder supply pipe. The present inorganic hollow powder is useful when blended in rubber and/or resin, for instance, for lowering the dielectric constant in multilayer printed boards, wiring covering materials, semiconductor encapsulating materials and the like.

摘要翻译： 提供了纯度高，细度高，空心度高的无机中空粉末。 具体地，提供平均粒径为1〜5μm，最大粒径为20μm以下，粒径分布标准偏差为3μm以下，平均中空为35〜70体积％的无机中空粉末， 。 无机中空粉末例如可以通过无机原料粉末供给管以80m / s以上的排出量供给比表面积为500m 2 / g以上的无机原料粉末， 平均粒径为7μm以下，由燃烧器形成的火焰构成，所述燃烧器至少包括从燃烧辅助气体供给管，可燃性气体供给管和无机供给材料的外部依次排列的三重管部 粉末供应管。 当混合在橡胶和/或树脂中时，本发明的无机中空粉末可用于降低多层印刷电路板，布线覆盖材料，半导体封装材料等中的介电常数。

公开(公告)号：US08053495B2

公开(公告)日：2011-11-08

申请号：US12300516

申请日：2007-05-11

申请人： Yasuhisa Nishi ,  Mitsuyoshi Iwasa

发明人： Yasuhisa Nishi ,  Mitsuyoshi Iwasa

IPC分类号： C08K7/00

CPC分类号： C08K3/36 ,  C01B33/12 ,  C04B35/62665 ,  C04B35/62813 ,  C04B35/62892 ,  C04B2235/3418 ,  C04B2235/528 ,  C04B2235/5296 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5472 ,  C09K21/02 ,  H01L23/295 ,  H01L2924/0002 ,  Y10T428/2982 ,  H01L2924/00

摘要： The present invention provides ceramic powder capable of being incorporated into rubber or a resin for the preparation of a composition, which shows excellent heat resistance and flame retardancy and which is used, for instance, as a semiconductor-sealing material. The ceramic powder has a multi-peak frequency distribution pattern having at least two peaks as a particle size distribution as determined using a laser diffraction-scattering type particle size-analyzer, wherein the maximum particle size for the first peak ranges from 40 to 80 μm and that for the second peak ranges from 3 to 8 μm and wherein the rate of the particles having a particle size of not less than 20 μm and less than 40 μm is not more than 20% by mass (inclusive of 0% by mass).

摘要翻译： 本发明提供能够结合到橡胶中的陶瓷粉末或用于制备组合物的树脂，其显示出优异的耐热性和阻燃性，并且其用作例如半导体密封材料。 陶瓷粉末具有多峰值频率分布图，其具有使用激光衍射 - 散射型粒度分析仪确定的至少两个峰作为粒度分布，其中第一峰的最大粒径范围为40至80μm 第二峰的范围为3〜8μm，粒径为20μm以上且小于40μm的粒子的比例为20质量％以下（含有0质量％）以下， 。

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。

公开(公告)号：US20110257300A1

公开(公告)日：2011-10-20

申请号：US13156678

申请日：2011-06-09

申请人： Yasuhisa NISHI ,  Mitsuyoshi Iwasa

发明人： Yasuhisa NISHI ,  Mitsuyoshi Iwasa

IPC分类号： C08K3/36 ,  C04B35/01 ,  C08L71/10 ,  C08K3/22 ,  C08L63/02

CPC分类号： C08K3/36 ,  C01B33/12 ,  C04B35/62665 ,  C04B35/62813 ,  C04B35/62892 ,  C04B2235/3418 ,  C04B2235/528 ,  C04B2235/5296 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5472 ,  C09K21/02 ,  H01L23/295 ,  H01L2924/0002 ,  Y10T428/2982 ,  H01L2924/00

摘要： The present invention provides ceramic powder capable of being incorporated into rubber or a resin for the preparation of a composition, which shows excellent heat resistance and flame retardancy and which is used, for instance, as a semiconductor-sealing material. The ceramic powder has a multi-peak frequency distribution pattern having at least two peaks as a particle size distribution as determined using a laser diffraction-scattering type particle size-analyzer, wherein the maximum particle size for the first peak ranges from 40 to 80 μm and that for the second peak ranges from 3 to 8 μm and wherein the rate of the particles having a particle size of not less than 20 μm and less than 40 μm is not more than 20% by mass (inclusive of 0% by mass).

摘要翻译： 本发明提供能够结合到橡胶中的陶瓷粉末或用于制备组合物的树脂，其显示出优异的耐热性和阻燃性，并且其用作例如半导体密封材料。 陶瓷粉末具有多峰值频率分布图，其具有使用激光衍射 - 散射型粒度分析仪确定的至少两个峰作为粒度分布，其中第一峰的最大粒径范围为40至80μm 第二峰的范围为3〜8μm，粒径为20μm以上且小于40μm的粒子的比例为20质量％以下（含有0质量％）以下， 。

公开(公告)号：US20090312477A1

公开(公告)日：2009-12-17

申请号：US12300516

申请日：2007-05-11

申请人： Yasuhisa Nishi ,  Mitsuyoshi Iwasa

发明人： Yasuhisa Nishi ,  Mitsuyoshi Iwasa

IPC分类号： C08K3/36 ,  C04B35/14

CPC分类号： C08K3/36 ,  C01B33/12 ,  C04B35/62665 ,  C04B35/62813 ,  C04B35/62892 ,  C04B2235/3418 ,  C04B2235/528 ,  C04B2235/5296 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5472 ,  C09K21/02 ,  H01L23/295 ,  H01L2924/0002 ,  Y10T428/2982 ,  H01L2924/00

摘要： The present invention provides ceramic powder capable of being incorporated into rubber or a resin for the preparation of a composition, which shows excellent heat resistance and flame retardancy and which is used, for instance, as a semiconductor-sealing material. The ceramic powder has a multi-peak frequency distribution pattern having at least two peaks as a particle size distribution as determined using a laser diffraction-scattering type particle size-analyzer, wherein the maximum particle size for the first peak ranges from 40 to 80 μm and that for the second peak ranges from 3 to 8 μm and wherein the rate of the particles having a particle size of not less than 20 μm and less than 40 μm is not more than 20% by mass (inclusive of 0% by mass).

摘要翻译： 本发明提供能够结合到橡胶中的陶瓷粉末或用于制备组合物的树脂，其显示出优异的耐热性和阻燃性，并且其用作例如半导体密封材料。 陶瓷粉末具有多峰频率分布图，其具有至少两个峰，作为使用激光衍射 - 散射型粒度分析仪确定的粒度分布，其中第一峰的最大粒径范围为40至80μm 第二峰的范围为3〜8μm，粒径为20μm以上且小于40μm的粒子的比例为20质量％以下（含有0质量％）以下， 。

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。