Glass for medicine container, and glass tube for medicine container and medicine container using same
AssigneeNippon Electric Glass Co., Ltd.
InventorSatoshi Arai
Life of this patent
Estimating the term…
Abstract
A glass for a pharmaceutical container of the present invention includes as a glass composition, in terms of mol %, 60% to 85% of SiO2, 3% to 20% of Al2O3, 0% to 5% of B2O3, 0% to 9% of Li2O, 0% to 12% of Na2O, 0% to 6% of K2O, 0.1% to 26% of Li2O+Na2O+K2O, 0% to 1% of SrO, and 0% to 1% of BaO, having a value for a molar ratio K2O/(Li2O+Na2O+K2O) of 0.60 or less, and having a value for a molar ratio Al2O3/(Li2O+Na2O+K2O) of 50 or less.
Claims17
A glass for a pharmaceutical container, comprising as a glass composition, in terms of mol %, 0% to 1.52% of ZrO2, 60% to 85% of SiO2, 3% to 20% of Al2O3, 0% to 5% of B2O3, 0% to 9% of Li2O, 0% to 12% of Na2O, 0% to 6% of K2O, 3.09% to 26% of Li2O+Na2O+K2O, 0% to 1% of SrO, and 0% to 1% of BaO, having a value for a molar ratio K2O/(Li2O+Na2O+K2O) of 0.03 to 0.24, and having a value for a molar ratio Al2O3/(Li2O+Na2O+K2O) of 0.2 to 1,
- wherein, in terms of molar relationship, CaO>MgO.
A glass for a pharmaceutical container, comprising as a glass composition, in terms of mol %, 0% to 1.52% of ZrO2, 60% to 85% of SiO2, 5% to 17.5% of Al2O3, 0% to 4% of B2O3, 3.09% to 6% of Li2O, 0% to 8.3% of Na2O, 0% to 5% of K2O, 3.09% to 26% of Li2O+Na2O+K2O, 0% to 1% of SrO, 0% to 1% of BaO, and 0% to 5% of MgO+CaO+SrO+BaO, having a value for a molar ratio K2O/(Li2O+Na2O+K2O) of 0.03 to 0.24, and having a value for a molar ratio Al2O3/(Li2O+Na2O+K2O) of 0.2 to 0.67,
- wherein, in terms of molar relationship, CaO>MgO.
A glass for a pharmaceutical container, comprising as a glass composition, in terms of mol %, 0% to 1.52% of ZrO2, 60% to 85% of SiO2, 5% to 17.5% of Al2O3, 0% to 5% of B2O3, 3.09% to 7% of Li2O, 0% to 8.3% of Na2O, 0% to 5% of K2O, 3.09% to 26% of Li2O+Na2O+K2O, 0% to 1% of SrO, 0% to 1% of BaO, and 0% to 3.7% of MgO+CaO+SrO+BaO, having a value for a molar ratio K2O/(Li2O+Na2O+K2O) of 0.03 to 0.24, and having a molar ratio Al2O3/(Li2O+Na2O+K2O) of 0.2 to 0.67,
- wherein, in terms of molar relationship, CaO>MgO.
A glass for a pharmaceutical container, comprising as a glass composition, in terms of mol %, 0% to 1.52% of ZrO2, 60% to 85% of SiO2, 5% to 20% of Al2O3, 0% to 5% of B2O3, 3.09% or more of Li2O, 3.09% to 26% of Li2O+Na2O+K2O, and 0% to 3% of MgO+CaO+SrO+BaO, having a value for a molar ratio K2O/Li2O+Na2O+K2O) of 0.03 to 0.24, and having a value for a molar ratio Al2O3/(Li2O+Na2O+K2O) of 0.2 to 1,
- wherein, in terms of molar relationship, CaO>MgO.
A glass for a pharmaceutical container, comprising as a glass composition, in terms of mol %, 0% to 1.52% of ZrO2, 60% to 85% of SiO2, 3% to 7% of Al2O3, 0% to 5% of B2O3, 3.09% to 7% of Li2O, 0% to 8.3% of Na2O, 0% to 5% of K2O, 3.09% to 26% of Li2O+Na2O+K2O, 0% to 1% of SrO, 0% to 1% of BaO, and 0% to 3.7% of MgO+CaO+SrO+BaO, having a value for a molar ratio K2O/(Li2O+Na2O+K2O) of 0.03 to 0.24, having a value for a molar ratio Al2O3/(Li2O+Na2O+K2O) of 0.02 to 0.5, and having a value for a molar ratio SiO2/Al2O3 of 16 or less,
- wherein, in terms of molar relationship, CaO>MgO.
Dependencies are inferred from the claim text.