Borosilicate glass with high chemical resistance and application thereof
AssigneeSunshine Lake Pharma Co., Ltd.
InventorsWeiqiang Hong, Zhengshang Zhou, Yong Jiang, Lianying Zhu, Xinqian He, Hongxing Han
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Abstract
The invention discloses a borosilicate glass with high chemical resistance and an application thereof. The borosilicate glass contains 0.25-4.0 wt % of Y2O3 based on the oxide. The borosilicate glass has a high chemical stability, a suitable linear thermal expansion coefficient and is suitable for use in the field of pharmaceutical packaging materials.
Claims19
A borosilicate glass comprising the following constituents based on oxide:
- SiO2
- 70-77
- wt %,
- B2O3
- 9.0-12
- wt %,
- Al2O3
- 3.0-7.0
- wt %,
- Na2O
- 5.0-8.0
- wt %,
- K2O
- 0-2.0
- wt %,
- Li2O
- 0-1.0
- wt %,
- wherein Σ(Na2O + K2O + Li2O)
- 5.0-8.0
- wt %,
- CaO
- 0-3.0
- wt %,
- MgO
- 0-1.0
- wt %,
- BaO
- 0-2.0
- wt %,
- wherein Σ(CaO + MgO + BaO)
- 0-5.0
- wt %,
- CeO2
- 0-1.0
- wt %,
- NaCl
- 0-1.0
- wt %,
- Y2O3
- 0.25-4.0
- wt %.
A borosilicate glass comprising the following constituents based on oxide:
- SiO2
- 70-76
- wt %,
- B2O3
- 9.0-11.5
- wt %,
- Al2O3
- 3.5-6.5
- wt %,
- Na2O
- 5.0-7.0
- wt %,
- K2O
- 0-1.0
- wt %,
- Li2O
- 0-1.0
- wt %,
- wherein Σ(Na2O + K2O + Li2O)
- 6.5-8.0
- wt %,
- CaO
- 0-2.0
- wt %,
- MgO
- 0-1.0
- wt %,
- BaO
- 0-1.5
- wt %,
- wherein Σ(CaO + MgO + BaO)
- 0-4.5
- wt %,
- CeO2
- 0-0.5
- wt %,
- Y2O3
- 0.5-3.5
- wt %.
A borosilicate glass comprising the following constituents based on oxide:
- SiO2
- 71-75.5
- wt %,
- B2O3
- 9.1-11.0
- wt %,
- Al2O3
- 3.8-6.5
- wt %,
- Na2O
- 5.5-7.0
- wt %,
- K2O
- 0-1.0
- wt %,
- Li2O
- 0-0.5
- wt %,
- wherein Σ(Na2O + K2O + Li2O)
- 6.0-8.0
- wt %,
- CaO
- 0-1.5
- wt %,
- MgO
- 0-0.5
- wt %,
- BaO
- 0.5-1.5
- wt %,
- wherein Σ(CaO + MgO + BaO)
- 0.5-3.5
- wt %,
- CeO2
- 0-1.0
- wt %,
- NaCl
- 0-1.0
- wt %,
- Y2O3
- 0.5-3.0
- wt %.
Dependencies are inferred from the claim text.