| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat insulation material having a lower thermal conductivity compared to the conventional art and is suitable as a glazed layer of a thermal head.SOLUTION: A heat insulation material comprises glass comprising, in mol%, SnO+TiO0.1-85% and PO0.1-49%, where the glass comprises, in mol%, SnO 0.1-85% and further comprises BO0-50% and ZnO 0-50%, with the total content of PO+SnO+TiO+BO++ZnO being 50% or more.SELECTED DRAWING: None |
