公开(公告)号：US20160083262A1

公开(公告)日：2016-03-24

申请号：US14888837

申请日：2014-05-15

Applicant: SAKAI CHEMICAL INDUSTRY CO., LTD.

Inventor： Satoshi KOMORI ,  Harunobu SAITO ,  Takumi KAWADA

IPC: C01F5/06 ,  C09J163/00 ,  C10M125/10 ,  C01F5/02

CPC classification number: C01F5/06 ,  C01F5/02 ,  C01F5/08 ,  C01F5/22 ,  C01P2002/72 ,  C01P2006/12 ,  C01P2006/32 ,  C01P2006/80 ,  C08K3/22 ,  C08K9/02 ,  C08K2003/222 ,  C08L101/00 ,  C09C1/36 ,  C09J11/04 ,  C09J163/00 ,  C10M113/08 ,  C10M125/10 ,  C10M2201/062 ,  C10M2209/1003 ,  C10M2209/1013 ,  C10N2210/02 ,  C10N2220/082 ,  C10N2250/08 ,  C10N2250/10 ,  C10N2270/00 ,  H01L23/3737 ,  H01L2924/0002 ,  H01L2924/00 ,  C08L63/00

Abstract: An object of the present invention is to provide magnesium oxide particles that have a high heat conductivity and excellent properties as heat-dissipating filler, and can prevent problems such as soft errors in the memory. The magnesium oxide particles have a BET specific surface area of 0.1 to 17 m2/g, and an α dose of 0.005 c/cm2·Hr or lower, the particles exhibiting a relation between an X-ray diffraction peak intensity y (cps) at a Bragg angle (2θ) of 42.80° to 43.00° and the BET specific surface area x (m2/g) as represented by the following inequality (1): y≧−960x+33000  (1).

Abstract translation: 本发明的目的是提供具有高导热性和作为散热填料的优异性能的氧化镁颗粒，并且可以防止存储器中的软错误等问题。 氧化镁粒子的BET比表面积为0.1〜17m 2 / g，α剂量为0.005c / cm 2·hr以下，所述粒子的X射线衍射峰强度y（cps） 由以下不等式（1）表示的布拉格角（2角度）为42.80°〜43.00°，BET比表面积×（m2 / g）：y≥-960×+ 33000（1）。

公开(公告)号：US20240002240A1

公开(公告)日：2024-01-04

申请号：US18247010

申请日：2021-09-21

Applicant: SAKAI CHEMICAL INDUSTRY CO., LTD.

Inventor： Yasuyuki MURAKAMI ,  Satsuki MOTOISHI ,  Hisao KOIZUMI ,  Satoshi KOMORI ,  Hironobu OGATA

IPC: C01B33/141

CPC classification number: C01B33/1415 ,  C01P2004/51 ,  C01P2002/01 ,  C01P2004/32 ,  C01P2004/64

Abstract: The present invention provides a boron-containing silica dispersion having better dispersion stability at a high concentration, and higher binding properties between boron and silica than conventional dispersions. The present invention is a boron-containing silica dispersion containing amorphous silica particles containing boron atoms and a dispersion medium; the boron-containing amorphous silica particles having an average particle size of 10 to 100 nm, as determined from 40 particles selected at random in a transmission electron micrograph; the boron-containing silica dispersion having a solids content of 5 to 30 mass %; and the boron-containing silica dispersion having a sedimentation rate of the particles of 4% or less, when the boron-containing silica dispersion is left standing for 1000 hours, and proportions of SiO2 and B2O3 of 90.0 to 99.8 mass % and 0.2 to 10.0 mass %, respectively, in 100 mass % of a total of SiO2 and B2O3, all terms of oxide, when the boron-containing silica dispersion is subjected to ultrafiltration by the following method and dried; washing is performed by sequentially adding pure water in an amount of 6 times the volume of the boron-containing silica dispersion at a flow rate of a liquid fed of 3660 ml/minute using an ultrafiltration membrane with a fraction molecular weight of 13,000.

公开(公告)号：US20230365419A1

公开(公告)日：2023-11-16

申请号：US18247242

申请日：2021-09-21

Applicant: SAKAI CHEMICAL INDUSTRY CO., LTD.

Inventor： Yasuyuki MURAKAMI ,  Satsuki MOTOISHI ,  Hisao KOIZUMI ,  Satoshi KOMORI ,  Hironobu OGATA

IPC: C01B33/193

CPC classification number: C01B33/193 ,  C01P2002/02 ,  C01P2004/64 ,  C01P2004/04 ,  C01P2002/54 ,  C01P2006/12 ,  C01P2002/88

Abstract: Provided is a boron-containing amorphous silica powder more excellent in terms of low temperature sinterability than conventional silica powders. The present invention relates to amorphous silica powder containing boron atoms, the boron-containing amorphous silica powder having an average particle size of 10 to 100 nm, as determined from 40 particles selected at random in a transmission electron micrograph, the boron-containing amorphous silica powder having a decrement in a boron content of 10 mass % or less, when fired under the following conditions:

5 to 10 g of a dried product of the boron-containing amorphous silica powder is filled into an alumina crucible, heated in the atmosphere at 200° C./hour to 1000° C. to 1100° C., maintained as it is for 5 hours, and cooled to room temperature.