公开(公告)号：US20210053838A1

公开(公告)日：2021-02-25

申请号：US16979265

申请日：2018-11-13

Applicant: TOHO TITANIUM CO., LTD.

Inventor： Daisuke TAKI ,  Hideki SAKAI

IPC: C01G23/00 ,  F16D69/02

Abstract: An alkali metal titanate includes an alkali metal titanate phase and a composite oxide containing Al, Si and Na, wherein a percentage of a ratio of the number of moles of Na to a total number of moles of Na and alkali metal X other than Na, ((Na/(Na+X))×100), is 50 to 100 mol %, and a percentage of a ratio of a total content of Si and Al to a content of Ti, (((Si+Al)/Ti)×100), is 0.3 to 10 mass %. According to the disclosure, an alkali metal titanate having a small content of a compound having a shorter diameter d of 3 μm or less, a longer diameter L of 5 μm or more and an aspect ratio (L/d) of 3 or more can be provided.