阅读说明：本技术 具有低硼含量钢化的硼硅酸盐玻璃制品 (Borosilicate glass article having low boron content tempering ) 是由 M·格林 C·卡斯 R·艾希霍尔茨 于 2019-06-18 设计创作，主要内容包括：本发明涉及一种可化学钢化的硼硅酸盐玻璃制品,其具有低硼含量和相应的Na<Sub>2</Sub>O含量。该制品具有良好的扩散率和耐水解性值。当化学钢化时,该硼硅酸盐玻璃制品呈现压应力CS>400Mpa和穿透深度DoL>20μm。本发明还涉及一种包括所述硼硅酸盐玻璃制品的药物初级包装。与现有技术的类似硼硅酸盐玻璃相比,所述硼硅酸盐玻璃制品和所述硼硅酸盐玻璃可以更好地钢化。(The invention relates to a chemically temperable borosilicate glass product having a low boron content and corresponding Na 2 And (4) the content of O. The product has good diffusivity and hydrolysis resistance values. When chemically tempered, the borosilicate glass article exhibits a compressive stress CS>400MPa and depth of penetration DoL>20 μm. The invention also relates to a pharmaceutical primary packaging comprising said borosilicate glass article. The borosilicate glass article and the borosilicate glass can be better tempered than similar borosilicate glasses of the prior art.)

1. A borosilicate glass article having B₂O₃/Na₂O ratio of less than 1.20 and also has a thickness of 6 μm²H to 25 μm²Diffusivity per h and according to ISO720: hydrolysis resistance of HGA1 of 1985.

2. The glass article of claim 1 having B₂O₃The ratio of mol% MgO is at least 1.4.

3. According to claimThe glass article of claim 1 or 2, having at least 3 mol% B₂O₃A content and a MgO content of not more than 3.2 mol%.

4. The glass article of any of the preceding claims, exhibiting a compression of 20 to 70 μ ι η per 100mm article length.

5. Glass article according to any of the preceding claims, having 6.3 μm²H to 20.5 μm²Diffusion rate per hour.

6. A glass article according to any preceding claim, having 5.1 to 7.3 x 10^-6K, preferably 6.0 to 7.3 x 10^-6Coefficient of thermal expansion CTE of/K_20to300°。

7. The glass article of any of the preceding claims, having a total amount of MgO and CaO of less than 4 mol%.

8. The glass article of any of the preceding claims, wherein the glass has a liquidus temperature and a glass viscosity of 10^6.5-7.0A crystallization rate having a limit value of not more than 0.1 μm/min in a temperature range defined by a temperature at dpa.s.

9. The glass article of any of the preceding claims, wherein a ratio E/p of Young's modulus E to density p is at least 303 x 10⁶m²/s²。

10. A glass article according to any preceding claim, comprising (expressed in mol% on an oxide basis):

11. the glass article of any of the preceding claims, wherein B₂O₃/Na₂The mol% ratio of O is at least 0.10.

12. The glass article of any of the preceding claims, wherein B₂O₃The mol% ratio of MgO is less than 10.

13. The glass article of any of the preceding claims, wherein B₂O₃Molar concentration of (A) relative to B₂O₃And Al₂O₃Is at least 0.30.

14. A glass article according to any preceding claim, wherein the article is chemically toughened to have a compressive stress >400MPa and/or a depth of penetration DoL >20 μ η ι.

15. A method of making a glass article according to any of the preceding claims, comprising:

-drawing the glass melt to form a glass article or a precursor thereof;

-cooling the article or precursor thereof.

16. A pharmaceutical product comprising a glass article according to any one of claims 1 to 14 and a pharmaceutical formulation.