Special material for polypropylene combined cap and outer cap for infusion container

An infusion container, polypropylene technology, applied in the field of pharmaceutical packaging, can solve the problems of increasing melt viscosity, large opening force of the pull ring, difficult to process and form, and achieve the effects of lowering melting point, easy opening, and improving anti-aging performance.

Active Publication Date: 2017-01-04
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of patent mainly improves the relative strength of polypropylene by adding elastomers, which increases the melt viscosity and is not easy to process and shape; at the same time, the opening force of the pull ring is generally too large for the outer cover of this type of polypropylene composite cover, and the pull ring is easy to break and other defects

Method used

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  • Special material for polypropylene combined cap and outer cap for infusion container
  • Special material for polypropylene combined cap and outer cap for infusion container
  • Special material for polypropylene combined cap and outer cap for infusion container

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Take 25Kg of POE and 5Kg of medical grade white oil, mix at a high speed of 2000r / min for 5 minutes, then leave for 2 hours to obtain a swelling elastomer.

[0035] Take 48kg of polypropylene, 22Kg of polyethylene, 0.1Kg of erucamide, 0.1Kg of anti-reflection agent Millad3988 and 0.3Kg of antioxidant (a mixture of antioxidant 1010 and antioxidant 168 in a mass ratio of 2:1) and 30Kg of the above-mentioned swelling elastomer was mixed at a high speed of 2000r / min for 5 minutes at a temperature of 170°C-190°C, and then extruded and granulated to prepare a special material for the outer cover of the polypropylene combination cap of the infusion container.

Embodiment 2

[0037] Take 28Kg of the elastomer and 5.6Kg of medical grade white oil, mix at a high speed of 2000r / min for 5 minutes, then leave it for 2 hours to obtain the swollen elastomer.

[0038]Take 46.4kg of polypropylene, 20Kg of polyethylene, 0.15Kg of erucamide, 0.15Kg of anti-reflection agent Millad3988 and 0.3Kg of antioxidant (mixture of antioxidant 1010 and antioxidant 168 in a mass ratio of 2:1) And 33.6Kg of the above-mentioned swelling elastomer was mixed at 170°C-190°C at a high speed of 2000r / min for 5 minutes, and then extruded and granulated to prepare the special material for the outer cover of the polypropylene combination cap of the infusion container.

Embodiment 3

[0040] Take 30Kg of the elastomer and 6Kg of medical grade white oil, mix at a high speed of 2000r / min for 5 minutes, then leave it for 2 hours to obtain the swollen elastomer.

[0041] Take 46kg of polypropylene, 18Kg of polyethylene, 0.2Kg of erucamide, 0.3Kg of anti-reflection agent Millad3988 and 0.3Kg of antioxidant (mixture of antioxidant 1010 and antioxidant 168 at a mass ratio of 1:1) And 36Kg of the above-mentioned swelling elastomer was mixed at 170°C-190°C at a high speed of 2000r / min for 5 minutes, and then extruded and granulated to prepare the special material for the outer cover of the polypropylene combination cap of the infusion container.

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Abstract

The invention discloses a polypropylene combined cover outer cover material for infusion containers, which consists of the following components in parts by weight: 40.0-60.0 parts of polypropylene, 15.0-30.0 parts of polyethylene, 15.0-35.0 parts of elastomer, 3.0-6.0 parts of liquid paraffin, 0.1-0.3 part of antioxidant, 0.1-0.3 part of slipping agent and 0.1-0.3 part of anti-reflection agent. The invention also provides a production method of the polypropylene combined cover outer cover material for infusion containers. The tensile force value of the polypropylene combined cover outer cover for infusion containers is 50+ / -5N and the pull tab is easy to open, so that the usability is improved. The injection molding temperature and pressure of the polypropylene combined cover outer cover material for infusion containers are lower and the forming manufacturability is good.

Description

technical field [0001] The invention relates to a special material for an outer cover of a polypropylene composite cover for an infusion container and a production method thereof, belonging to the technical field of medical packaging. Background technique [0002] At present, polypropylene has been widely used in the pharmaceutical packaging industry due to its advantages such as high mechanical strength, non-toxicity, heat resistance, chemical resistance, and easy molding processing, and has become the fastest-growing, fastest-growing and most active synthetic resin among synthetic resins. One of the varieties. In the infusion packaging industry, the modified material for the production of polypropylene composite caps and outer caps for infusion containers is traditionally blended with medical-grade polypropylene and olefin-based elastomers, the proportion is controlled, and extrusion granulation is used to improve the low temperature of polypropylene. brittleness. [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L23/06C08L23/08C08L23/16C08L53/02C08K5/20C08K5/01
CPCC08L23/12C08L2201/08C08L2205/035C08L23/06C08L23/0815C08L91/06
Inventor 吴波震王旭廖文强
Owner ZHEJIANG UNIV OF TECH
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