公开(公告)号：US20230202901A1

公开(公告)日：2023-06-29

申请号：US18171509

申请日：2023-02-20

Applicant: AGC Inc.

Inventor： Hiroshi KOMATSU ,  Takanori FUKUSHI ,  Satoshi KANASUGI ,  Hitomi FURUTA ,  Shiro FUNATSU

IPC: C03B23/03 ,  C03C10/00 ,  C03C21/00

CPC classification number: C03B23/03 ,  C03C10/00 ,  C03C21/002 ,  C03C2204/00 ,  C03B32/02

Abstract: The present invention relates to a glass in which: the glass is a crystallized glass; the glass has a difference log η−log η0 (dPa·s) between a logarithm log η (dPa·s) of bulk viscosity η (dPa·s) and a logarithm log η0 (dPa·s) of local viscosity η0 (dPa·s) of larger than 0 and 1.8 or smaller, in a temperature range in which the logarithm log η0 (dPa·s) of the bulk viscosity η (dPa·s) is 11.4 or larger and 12.7 or smaller.