Invention Publication
- Patent Title: GLASS FOR PHARMACEUTICAL CONTAINER, GLASS TUBE FOR PHARMACEUTICAL CONTAINER, AND PHARMACEUTICAL CONTAINER
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Application No.: US17912072Application Date: 2021-04-13
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Publication No.: US20230167007A1Publication Date: 2023-06-01
- Inventor: Satoshi ARAI
- Applicant: NIPPON ELECTRIC GLASS CO., LTD.
- Applicant Address: JP Otsu-shi, Shiga
- Assignee: NIPPON ELECTRIC GLASS CO., LTD.
- Current Assignee: NIPPON ELECTRIC GLASS CO., LTD.
- Current Assignee Address: JP Otsu-shi, Shiga
- Priority: JP 20080013 2020.04.30
- International Application: PCT/JP2021/015340 2021.04.13
- Date entered country: 2022-09-16
- Main IPC: C03C3/091
- IPC: C03C3/091 ; C03C4/20

Abstract:
A glass for a pharmaceutical container of the present invention contains, as a glass composition, in terms of mol %, 70% to 85% of SiO2, 3% to 13% of Al2O3, 0% to 5% of B2O3, 0.1% to 18% of Li2O+Na2O+K2O, and 0% to 10% of MgO+CaO+SrO+BaO, in which a molar ratio (Li2O+Na2O+K2O)/Al2O3 is 1 or more and a molar ratio (Li2O+Na2O+K2O+MgO+CaO+SrO+BaO—Al2O3)/(SiO2+Al2O3) is 0.2 or less.
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