公开(公告)号：US20210017392A1

公开(公告)日：2021-01-21

申请号：US17060138

申请日：2020-10-01

Applicant: ADMATECHS CO., LTD.

Inventor： Shinta HAGIMOTO ,  Nobutaka TOMITA ,  Masaru KURAKI

IPC: C09C1/40 ,  C01B39/20 ,  C01B39/36 ,  C09D11/037

Abstract: A filler for resinous composition is contained and used in resinous composition constituting electronic packaging material for electronic device, and includes: a filler ingredient including a crystalline siliceous material with a crystal structure made of at least one member selected from the group consisting of type FAU, type FER, type LTA, type MFI and type CHA, and/or type MWW, wherein: the filler ingredient is free of any activity when evaluated by an “NH3-TPD” method; and includes the crystalline siliceous material in an amount falling in a range allowing the filler ingredient to exhibit a negative thermal expansion coefficient. The filler ingredient may further be free of a surface in which silver, copper, zinc, mercury, tin, lead, bismuth, cadmium, chromium, cobalt and nickel are exposed.

公开(公告)号：US20240392110A1

公开(公告)日：2024-11-28

申请号：US18790034

申请日：2024-07-31

Applicant: ADMATECHS CO., LTD.

Inventor： Keisuke KURITA ,  Nobutaka TOMITA ,  Yuki ARAI

IPC: C08K9/06 ,  C01G39/00 ,  C09C1/00 ,  C09C3/12

Abstract: An object of the present invention is to provide a composite oxide particle material formed of zinc molybdate having a high purity and a high circularity. The composite oxide particle material is formed of a composite oxide, of molybdenum and zinc, having an average particle diameter of 0.1 μm or more and 5.0 μm or less, a BET specific surface area of 1 m2/g or more and 20 m2/g or less, (peak intensity at 26.6° according to XRD)/(peak intensity at 24.2°) of 1.20 or more, an impurity concentration of 1 mass % or less, and a circularity of 0.90 or more. XRD is measured with CuKα radiation.

公开(公告)号：US20240327644A1

公开(公告)日：2024-10-03

申请号：US18743283

申请日：2024-06-14

Applicant: ADMATECHS CO., LTD.

Inventor： Kohei OGATA ,  Yusuke WATANABE ,  Nobutaka TOMITA

IPC: C09C1/30 ,  C08K9/06 ,  C09C3/04 ,  C09C3/12

CPC classification number: C09C1/3081 ,  C08K9/06 ,  C09C3/043 ,  C09C3/12 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/12 ,  C01P2006/82

Abstract: A filler for electronic material according to the present invention has a silica particle material produced by a dry method, wherein D50 is 0.2 μm or greater and 7.0 μm or less. Further, in the filler for electronic material according to the present invention, (BET specific surface area)/(theoretical specific surface area calculated from D50) is 0.85 or greater and 1.2 or less (requirement 1), and/or D10/D50 is 0.55 or greater and 0.75 or less (requirement 2). When at least one of the requirements 1 and 2 is satisfied, electric characteristics such as a Df value are improved. Here, the BET specific surface area is a value measured by using nitrogen, and D50 is a 50 mass % cumulative diameter, i.e., a median diameter, and means a particle diameter at 50 mass % when the masses of particles are sequentially integrated from smaller particle diameters. Similarly, D10 is a 10 mass % cumulative diameter.

公开(公告)号：US20230352435A1

公开(公告)日：2023-11-02

申请号：US18206789

申请日：2023-06-07

Applicant: ADMATECHS CO., LTD.

Inventor： Shinta HAGIMOTO ,  Nobutaka TOMITA ,  Susumu ABE

IPC: H01L23/00

CPC classification number: H01L24/27 ,  H01L24/29 ,  H01L2224/2711 ,  H01L2224/2919

Abstract: Provided is a method for producing an electronic material filler having excellent performance. The method includes a burning step of putting a particle raw material in flame obtained by burning combustible carbon-free gas containing no carbon to form a particle material to be contained in the electronic material filler. By adopting, as combustible gas, combustible gas containing no carbon, conductive particles formed of carbon are not generated in principle. Therefore, a step of removing the conductive particles formed of carbon by sieving or the like is not required. Particularly, carbon derived from hydrocarbon gas is adhered to and formed on, for example, the surface of the particle material or is formed in the particle material. Therefore, the carbon may not be completely removed by sieving or the like. However, the production method of the present invention prevents the carbon from being mixed in principle.

公开(公告)号：US20200231507A1

公开(公告)日：2020-07-23

申请号：US16822176

申请日：2020-03-18

Applicant: ADMATECHS CO., LTD.

Inventor： Kimitoshi SATO ,  Yusuke WATANABE ,  Nobutaka TOMITA ,  Akihiko SUDA ,  Tatsuo FUKANO

IPC: C04B35/56 ,  H01M4/1393 ,  H01M4/583 ,  C04B35/626

Abstract: A particulate material with a composition expressed by MaAlbXc in which “M” includes one or more elements selected from the group consisting of Ti, V, Cr, Zr, Nb, Mo, Hf and Ta and “X” includes C or one or more chemical structures selected from the group consisting of C(1.0−x)Nx (where “x” is 0

公开(公告)号：US20230046554A1

公开(公告)日：2023-02-16

申请号：US17965027

申请日：2022-10-13

Applicant: ADMATECHS CO., LTD.

Inventor： Kenta TAKEI ,  Yuri AOKI ,  Yusuke WATANABE ,  Nobutaka TOMITA

IPC: C09C1/30 ,  C09C3/12

Abstract: A modified metal oxide particle material includes: a metal oxide particle material having, on a surface thereof, a functional group other than a phenyl group; and a modifying material formed of a silicon-containing compound having a phenyl group. The modifying material is adhered to the surface of the metal oxide particle material. When the modified metal oxide particle material is washed with methyl ethyl ketone, a ratio (C/H) of a carbon content C (% by mass) to a surface area H (m2) per 1 g is 0.05 or less, after the washing. The ratio (C/H) is reduced by 0.1 or more, and the modifying material is removed by 50% or more by mass, after the washing compared with before the washing.

公开(公告)号：US20230024335A1

公开(公告)日：2023-01-26

申请号：US17953430

申请日：2022-09-27

Applicant: ADMATECHS CO., LTD.

Inventor： Kenta TAKEI ,  Yusuke WATANABE ,  Nobutaka TOMITA

IPC: C09C3/12 ,  C09C1/30 ,  C09D17/00 ,  C09D7/62

Abstract: A particle material that has high dispersibility in a dispersion medium such as toluene having high hydrophobicity, and a slurry composition in which the particle material is used, are provided for solving the problem. A surface-modified particle material of the present invention includes: a particle material formed of an inorganic material; and a surface treatment agent formed of a silane compound having a first functional group that has any of C, N, and O atoms away over five or more atoms from Si to which an alkoxide is bound, the surface treatment agent allowing surface treatment of the particle material in such an amount that a degree of hydrophobicity becomes not less than 30%. Dispersibility is enhanced also in a dispersion medium having high hydrophobicity in a case where a functional group having a predetermined structure is introduced so as to impart predetermined or higher hydrophobicity.

公开(公告)号：US20200332082A1

公开(公告)日：2020-10-22

申请号：US16921334

申请日：2020-07-06

Applicant: ADMATECHS CO., LTD.

Inventor： Shinta HAGIMOTO ,  Nobutaka TOMITA ,  Osamu NAKANO

IPC: C08K3/34 ,  C08K9/06 ,  C08K7/18 ,  C09C1/40

Abstract: A filler for resinous composition is contained and used in resinous composition, and includes: a crystalline siliceous particulate material with a crystal structure made of at least one member selected from the group consisting of type FAU, type FER, type LTA and type MFI, and/or type MWW; and a surface treatment agent including an organic silica compound reacted with or adhered to a surface of the crystalline siliceous particulate material; the filler including the surface treatment agent in an amount falling in a range allowing the filler to exhibit a negative thermal expansion coefficient.

公开(公告)号：US20200040162A1

公开(公告)日：2020-02-06

申请号：US16597110

申请日：2019-10-09

Applicant: ADMATECHS CO., LTD.

Inventor： Shinta HAGIMOTO ,  Nobutaka TOMITA ,  Osamu NAKANO

IPC: C08K9/06 ,  C08K3/36 ,  C08J3/205 ,  H01L23/29 ,  H05K1/03

Abstract: A filler for resinous composition is contained and used in resinous composition, and includes: a crystalline siliceous particulate material with a crystal structure made of at least one member selected from the group consisting of type FAU, type FER, type LTA and type MFI, and type MWW; and a surface treatment agent including an organic silica compound reacted with or adhered to a surface of the crystalline siliceous particulate material; the filler including the surface treatment agent in an amount falling in a range allowing the filler to exhibit a negative thermal expansion coefficient.