公开(公告)号：US20230227658A1

公开(公告)日：2023-07-20

申请号：US17928900

申请日：2021-05-10

Applicant: DENKA COMPANY LIMITED

Inventor： Naotsugu NOGAMI ,  Motoharu FUKAZAWA ,  Takuto OKABE

IPC: C09C3/06 ,  C09C1/00 ,  C03C14/00 ,  C08K9/02

CPC classification number: C09C3/063 ,  C09C1/0081 ,  C03C14/004 ,  C08K9/02 ,  C01P2004/84 ,  C01P2002/72 ,  C01P2004/03 ,  C03C2214/05

Abstract: A method for producing a composite particle, the method containing: (a) mixing a raw material particle and at least one type of fine particles selected from SiO2 fine particles and Al2O3 fine particles, the fine paricles having a diameter smaller than that of the raw material particle; and (b) heating the mixture of the raw material particles and the fine particles, wherein the raw material particle contains three components of ZnO, Al2O3, and SiO2, and a content of the ZnO is 17 to 43% by mole, a content of the Al2O3 is 9 to 20% by mole, and a content of the SiO2 is 48 to 63% by mole, based on the total content of the three components.