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：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.