Multi-layer film and medicine container using the same

a multi-layer film and medicine container technology, applied in the field of multi-layer film and medicine container using the same, can solve the problems of deterioration of properties such as strength and flexibility of the medicine container, decrease in the content of the medicine, interference with pre-mixing, etc., and achieve the effect of improving heat resistance and improving flexibility of the multi-layer film
US20050208240A1Inactive Publication Date: 2005-09-22OTSUKA PHARM FAB INC
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
OTSUKA PHARM FAB INC
Publication Date
2005-09-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

Disclosed is a multi-layer film comprising: a surface layer having a thickness of 10 to 50 ƒÊm made of an ethylene-ƒ-olefin copolymer halving a density of 0.935 to 0.950 g / cm3, a flexible layer having a thickness of 100 to 200 ƒÊm made of an ethylene-ƒ-olefin copolymer having a density of 0.860 to 0.930 g / cm3, a barrier layer having a thickness of 10 to 80 ƒÊm made of a mixed resin containing 60 to 95% by weight of a cyclic olefin polymer and 5 to 40% by weight of an ethylene-ƒ-olefin copolymer having a density of 0.900 to 0.965 g / cm3, and a seal layer having a thickness of 5 to 80 ƒÊm made of an ethylene-ƒ-olefin copolymer having a density or 0.910 to 0.950 g / cm3. This multi-layer film is suited for use as a material for production of a medicine container 10 because it suppresses adsorption of a medicine by the barrier layer and is also superior in strength and flexibility.
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Description

TECHNICAL FIELD

[0001] The present invention relates to a multi-layer film which suppresses adsorption of a medicine and a liquid medicine, and a medicine container using the same. BACKGROUND ART

[0002] For use in continuous infusion, some medicines are administered in the state of being mixed with an infusion solution. For use in continuous infusion, it has been studied to previously form a medicine for injection into an aqueous dilute solution (namely, pre-mixing).

[0003] Bottles and ampuls made of chemically stable glass have hitherto been used as a medicine container which accommodates an infusion solution. Recently, for the purpose of weight reduction of the medicine container and improvement in handling property, infusion bags and infusion bottles made of a pharmaceutically acceptable plastic have widely been used. Among various known pharmaceutically acceptable plastics, polyethylene is remarkably superior in handling property because of its high safety and flexibility in the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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