公开(公告)号：US20170081239A1

公开(公告)日：2017-03-23

申请号：US15273857

申请日：2016-09-23

Applicant: SCHOTT AG

Inventor： Michael Schwall ,  Edgar Pawlowski

IPC: C03C3/087 ,  A61J1/14 ,  C03C21/00 ,  C03C4/18 ,  C03C4/20

CPC classification number: C03C3/087 ,  A61J1/1468 ,  C03C3/112 ,  C03C4/18 ,  C03C4/20 ,  C03C21/002 ,  C03C2204/00

Abstract: A glass is disclosed that is particularly suitable as pharmaceutical packing medium and as a chemically pre-stressable glass comprising at least the following components (in mol-% on oxide basis): 64-77 SiO2, 5-14 Al2O3, 4-12 Na2O, 1-12 CaO, 0-14 MgO, 0-2 ZrO2, 0-4.5 TiO2, wherein the ratio Al2O3/Na2O≧1, wherein the ratio Al2O3/CaO≧1.5, and wherein the total content SiO2+Al3O3