GLASS FOR PHARMACEUTICAL CONTAINERS, GLASS TUBE FOR PHARMACEUTICAL CONTAINERS OBTAINED THEREFROM, METHOD FOR PRODUCING PHARMACEUTICAL CONTAINER, AND PHARMACEUTICAL CONTAINER
First Claim
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1. A glass for pharmaceutical containers which has a glass composition comprising, in terms of mol %, 50-80% of SiO2, 5-30% of Al2O3, 0-2% of Li2O, and 5-25% of Na2O.
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Abstract
Provided is a glass for pharmaceutical containers which, after formed into final products such as ampoules, vials, pre-filled syringes, and cartridges, renders the containers capable of being sufficiently chemically strengthened, and a glass tube formed therefrom. The glass for pharmaceutical containers of the present invention comprises, in terms of mol %, 50-80% of SiO2, 5-30% of Al2O3, 0-2% of Li2O, and 5-25% of Na2O.
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Citations
21 Claims
- 1. A glass for pharmaceutical containers which has a glass composition comprising, in terms of mol %, 50-80% of SiO2, 5-30% of Al2O3, 0-2% of Li2O, and 5-25% of Na2O.
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12. A glass for pharmaceutical containers:
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which has a glass composition comprising, in terms of mol %, 50-80% of SiO2, 5-30% of Al2O3, 0-2% of Li2O, 5-25% of Na2O, 0-10% of MgO, 0-10% of CaO, and 1-10% of B2O3; which, when subjected to an ion-exchange treatment in 440°
C. KNO3 molten salt, forms a compression stress layer that has a value of compression stress of 300 MPa or higher and a thickness of 10 μ
m or large;which has a liquidus viscosity of 104.0 dPa·
s or higher; andwhich has a coefficient of thermal expansion of 100×
10−
7/°
C. or less in the temperature range of 30-380°
C. - View Dependent Claims (14, 17, 19, 21)
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Specification