Neutral borosilicate glass and application thereof

A technology of neutral borosilicate glass and its application, which is applied to the types of packaging items, special packaging objects, medical containers, etc., and can solve the problems that cannot meet the performance requirements of pharmaceutical neutral borosilicate glass.

Active Publication Date: 2015-01-07
RUYUAN YAO AUTONOMOUS COUNTY DONGYANGGUANG FORMED FOIL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN103058518A Adding 1.0-2.5% colorant Fe to borosilicate glass basic formula 2 o 3 And 0.02-0.06% CoO, so that the borosilicate glass is dark gray, the visible light transmittance is 16-20%, but its linear thermal expansion coefficient α 20-300℃ 3.3±0.15*10 -6 K -1 , can not meet the performance requirements of pharmaceutical neutral borosilicate glass

Method used

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  • Neutral borosilicate glass and application thereof
  • Neutral borosilicate glass and application thereof
  • Neutral borosilicate glass and application thereof

Examples

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specific Embodiment approach

[0021] What is described below is the preferred implementation of the present invention, and the protection of the present invention is not limited to the following preferred implementation. It should be pointed out that for those skilled in the art, some modifications and improvements made on the basis of this inventive concept all belong to the protection scope of the present invention. The raw materials used in the examples are all commercially available.

Embodiment

[0023] According to the formula in Table 1, the glass raw materials with a total weight of 300g were accurately weighed and mixed evenly, and the evenly mixed batch was poured into an alumina crucible, and placed in a high-temperature furnace from room temperature to 1650°C at a heating rate of 5°C / min, clarification time is 4 hours, then take out the crucible, pour the glass liquid into the preheated graphite mold, after forming, put the sample into the annealing furnace, the annealing temperature is 560°C±20°C, keep warm The time is half an hour. Cut or grind the glass blocks into blocks, strips, flakes, granules or powder samples of the size specified in YBB00022005-2, the size of the sample required for the 98°C water resistance test is 300μm-500μm, and the required size for the 121°C water resistance test The size of the sample is 600μm-1000μm, and the total surface area of ​​the sample required for the acid resistance test is 100±10cm 2 , the total surface area of ​​the...

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Abstract

The invention relates to a pharmaceutical neutral borosilicate glass. The pharmaceutical neutral borosilicate glass comprises the following components (in weight percentage, based on oxides): 70.0-80.0% of SiO2, 7.0-12.0% of B2O3, 1.5-5.0% of Al2O3, 5.5-8.0% of Na2O, 0-1.0% of K2O, 0-1.5% of Li2O, 1.5-3.0% of CaO, 0-3.5% of BaO, 0-2.0% of MgO, 0.3-0.5% of NaCl, 6.0-9.5% of Na2O+K2O+Li2O and 1.5-6% of CaO+BaO+MgO. The pharmaceutical neutral borosilicate glass is in line with a national standard of pharmaceutical packaging containers (materials) YBB00022005-2, and is suitable for being used as pharmaceutical primary packaging materials, such as ampoules, portable bottles, penicillin bottles and the like.

Description

technical field [0001] The invention relates to a neutral borosilicate glass and its application. Background technique [0002] Medicinal neutral borosilicate glass is recognized as the best pharmaceutical packaging material in the world today, with stable chemical properties, first class water resistance, first class acid resistance, and second class alkali resistance. In developed countries such as the United States, Japan, and Europe, neutral borosilicate glass has been compulsorily used as the primary packaging material for injections, while soda-lime-silica glass or thermal expansion coefficient of 7.0×10 is generally used for pharmaceutical packaging in my country. -6 K -1 Semi-neutral borosilicate glass products. When these two packaging materials contain drugs with a high pH value, the amount of potassium and sodium precipitation exceeds the standard, and the drug and glass undergo a compatibility reaction, resulting in the clarity of the aqueous injection not meeti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/11A61J1/06
Inventor 邓臻禄朱连英洪伟强周争上
Owner RUYUAN YAO AUTONOMOUS COUNTY DONGYANGGUANG FORMED FOIL CO LTD
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