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Medicine bottle cap

A bottle cap and medicine bottle technology, applied in the field of medicine bottle caps, can solve the problems of reducing surface gloss and mechanical properties, affecting the physical properties of polyethylene bottle caps, unable to match the size of the bottle mouth, etc., and achieving excellent dimensional stability. , The effect of improving the efficiency of molding and shortening the molding cycle

Inactive Publication Date: 2015-02-25
青岛浩恩医药耗材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But prolonging the setting cooling time will lead to the reduction of production efficiency
At the same time, the size of the polyethylene bottle cap will continue to shrink after being placed for a period of time, resulting in a smaller size, which cannot match the size of the bottle mouth or is too tight.
The traditional polyethylene bottle cap modification is to reduce the shrinkage of polyethylene by adding filler masterbatch, but the method of adding filler masterbatch has the following disadvantages: First, it affects the physical properties of polyethylene bottle caps, such as reducing the surface gloss and mechanical properties
Secondly, PP bottle caps are widely used in the beverage, food and pharmaceutical industries, which have very strict hygiene requirements, and there are great safety hazards in adding a large amount of filling.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Polyethylene granules 60 parts, phthalates

[0028] 0.2 parts, 0.5 parts of lead salt, 0.3 parts of coupling agent.

[0029] Weigh each raw material according to the formula, pour it into a high-speed mixer and stir evenly, then add it into a twin-screw extruder, melt and extrude at 180-240°C to make granules.

[0030]

[0031] Specific example 2

[0032] Polyethylene granules 80 parts, phthalates

[0033] 0.4 parts, 0.8 parts of lead salt, 0.5 parts of coupling agent.

[0034] Weigh each raw material according to the formula, pour it into a high-speed mixer and stir evenly, then add it into a twin-screw extruder, melt and extrude at 180-240°C to make granules.

[0035]

[0036] Specific example 3

[0037] Polyethylene granules 70 parts, phthalates

[0038] 0.3 parts, 0.7 parts of lead salt, 0.4 parts of coupling agent.

[0039] Weigh each raw material according to the formula, pour it into a high-speed mixer and stir evenly, then add it into a twin-screw extrud...

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PUM

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Abstract

The invention provides a medicine bottle cap. The medicine bottle cap comprises the following raw materials in parts by weight: 60-80 parts of polyethylene particles, 0.2-0.4 part of phthalate, 0.5-0.8 part of lead salt and 0.3-0.5 part of coupling agent or comprises the following raw materials in parts by weight: 60-70 parts of polyethylene particles, 0.2-0.3 part of phthalate, 0.5-0.6 part of lead salt and 0.3-0.4 part of coupling agent or comprises the following raw materials in parts by weight: 70-80 parts of polyethylene particles, 0.3-0.4 part of phthalate, 0.6-0.8 part of lead salt and 0.4-0.5 part of coupling agent. The medicine bottle cap is simple in proportioning and has high production efficiency and excellent quality.

Description

[0001] Technical field: [0002] The invention relates to the technical field of a bottle cap for sealing a medicine bottle, in particular to a medicine bottle cap. [0003] Background technique: [0004] Polyethylene bottle caps are mainly produced by injection molding or compression molding. Due to the high shrinkage rate of polyethylene, it is necessary to lengthen the setting cooling time and pressure holding time of the injection molding machine or compression molding machine in the production process to prevent the appearance of the product. The appearance of defective products such as shrinkage, warping, and irregular inner teeth. But prolonging the setting cooling time will lead to the reduction of production efficiency. At the same time, the size of the polyethylene bottle cap will continue to shrink after being placed for a period of time, resulting in a smaller size, which cannot match the size of the bottle mouth or is too tight. The traditional polyethylene b...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08K5/12
CPCC08K5/12C08L23/06
Inventor 黄克兴
Owner 青岛浩恩医药耗材有限公司
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