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Modified polyethylene and easy-to-uncover suppositorium packaging film

A polyethylene and polyethylene layer technology, applied in the field of plastic packaging films, can solve the problems of inconvenience in use, and achieve the effects of good barrier performance, convenient use and good processing performance

Active Publication Date: 2009-06-24
ZHEJIANG GOLDSTONE PACKING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The composite film for suppository packaging of the present invention has better flexibility and formability, but its shortcoming is that polyethylene is directly used as the heat-sealing layer. The stickiness is too strong, so that the two layers cannot be peeled off, but can only be torn off, which is not very convenient to use

Method used

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  • Modified polyethylene and easy-to-uncover suppositorium packaging film
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  • Modified polyethylene and easy-to-uncover suppositorium packaging film

Examples

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Embodiment 1

[0025] (embodiment 1, modified polyethylene)

[0026] This embodiment is a modified polyethylene, its raw materials include: polyethylene: 10 kilograms; and polyisobutylene used to reduce the bonding performance of the polyethylene: 0.5 kilograms; the parts by weight are 10:0.5 . The polyethylene is selected from the polyethylene produced by Hongtai Plastic Raw Materials Co., Ltd., and the polyisobutylene is selected from medium and high molecular weight polyisobutylene with a brand name of BASF B15. After mixing the above-mentioned raw materials with good proportions, they are formed by blown film method in a blown film machine. The specific formula of this embodiment is shown in Table 1.

Embodiment 2 to Embodiment 6

[0027] (embodiment 2 to embodiment 6, modified polyethylene)

[0028] Each embodiment in embodiment 2 to embodiment 6 is basically the same as embodiment 1, the difference is: the proportioning of raw materials used in each embodiment in embodiment 2 to embodiment 6 is different, see table 1 for details.

[0029] Table 1

[0030]

Embodiment 7 to Embodiment 12

[0031] (Example 7 to Example 12, modified polyethylene)

[0032] Each embodiment in embodiment 7 to embodiment 12 is substantially the same as embodiment 1, and difference is: the raw material used in each embodiment in embodiment 7 to embodiment 12 is polyethylene and polyn-butylene, in addition, each embodiment The ratio of raw materials in is also slightly different, see Table 2 for details.

[0033]

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PUM

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Abstract

The invention discloses modified polyethylene and an easy removing suppository packaging film. The raw materials of the modified polyethylene comprise according to the parts by weight: 100 parts of polyethylene and 5-40 parts of polybutene or modified polybutene. The easy removing suppository packaging film comprises a barrier layer and a heat-sealing layer. The barrier layer is an aluminum foil layer and a polyvinyl chloride layer. The barrier layer and a heat-sealing layer are compounded together by a gluing mode. The heat-sealing layer is composite layer structure and sequentially one to two-layer polyethylene layer and one-layer modified polyethylene layer along the direction far away the barrier layer. Raw materials used by the modified polyethylene layer are 100 parts of polyethylene, and 5-40 parts of polybutene or modified polybutene according to the parts by weight. The heat-sealing layer has good easy removing performance after lap piling and heat-sealing.

Description

technical field [0001] The invention belongs to the technical field of plastic packaging films, in particular to a modified polyethylene and an easy-to-open suppository packaging film comprising a heat-sealing layer made of the modified polyethylene. Background technique [0002] Patent document CN2507802Y discloses a composite packaging film for medicines, which is composed of three layers of materials. The middle layer is an aluminum layer, the outer surface is attached with a polyamide polymer layer, and the inner surface is attached with a polyvinyl chloride layer. The disadvantage is that , the drug packaging film has high hardness and insufficient flexibility, which affects the packaging effect. [0003] Patent document CN2639220Y discloses a composite film for suppository packaging, with a polyethylene film layer as the base layer, and a soft aluminum foil layer or a polyvinyl chloride hard sheet layer attached to the polyethylene film layer. The polyethylene film lay...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/20C08L25/08B32B7/12B32B27/32B32B27/30B32B15/085B65D65/40
Inventor 张文锋孙国锦
Owner ZHEJIANG GOLDSTONE PACKING
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