公开(公告)号：US10851246B2

公开(公告)日：2020-12-01

申请号：US16715204

申请日：2019-12-16

Applicant: ADMATECHS CO., LTD.

Inventor： Yusuke Watanabe ,  Nobutaka Tomita ,  Yoshiaki Kato

IPC: C09C3/12 ,  C01B33/18 ,  C08J3/205 ,  C08K9/06 ,  C08J3/20

Abstract: A production method for an electronic material filler includes: a preparation step of preparing a silica particle material produced by a dry method; and a first surface treatment step of performing surface treatment on the silica particle material with a silane compound having a vinyl group, a phenyl group, a phenylamino group, an alkyl group having four or more carbon atoms, a methacryl group, or an epoxy group, to obtain a first surface treatment-processed particle material. After the silica particle material is produced by the dry method, the silica particle material is not brought into contact with liquid water, and has a particle diameter of 100 nm to 600 nm or a specific surface area of 5 m2/g to 35 m2/g.

公开(公告)号：US11001714B2

公开(公告)日：2021-05-11

申请号：US16715185

申请日：2019-12-16

Applicant: ADMATECHS CO., LTD.

Inventor： Yusuke Watanabe ,  Nobutaka Tomita ,  Yoshiaki Kato

IPC: C09C3/12 ,  C01B33/18 ,  C08J3/205 ,  C08K9/06 ,  C08J3/20

Abstract: A production method for an electronic material filler includes: a preparation step of preparing a silica particle material produced by a dry method; and a first surface treatment step of performing surface treatment on the silica particle material with a silane compound having a vinyl group, a phenyl group, a phenylamino group, an alkyl group having four or more carbon atoms, a methacryl group, or an epoxy group, to obtain a first surface treatment-processed particle material. After the silica particle material is produced by the dry method, the silica particle material is not brought into contact with liquid water, and has a particle diameter of 100 nm to 600 nm or a specific surface area of 5 m2/g to 35 m2/g.