Claims
- 1. A film for a medical packaging container comprising a peelable film comprising 90% or more by weight of a mixture of a propylene/α-olefin copolymer (A) and at least one of a propylene/α-olefin copolymer (B) having an α-olefin content different from that of the copolymer (A) and a propylene homopolymer (C), wherein the propylene/α-olefin copolymer (A) has an α-olefin content of 5-20 mol % and a melting point of 110-130° C., the propylene/α-olefin copolymer (B) has an α-olefin content of 8 mol % or less, the propylene/α-olefin copolymer (B) and the propylene homopolymer (C) each have a melting point of 130-170° C., and a difference between the melting point of (A) and the melting point of (C) is each at least 5° C. and wherein the α-olefin in the propylene/α-olefin copolymer (A) and the α-olefin in the propylene/α-olefin copolymer (B) are α-olefin having 2 or 4 to 8 carbon atoms.
- 2. The film for a medical packaging container claimed in claim 1, wherein the film is tubular.
- 3. The film for a medical packaging container claimed in claim 1, wherein the film is a plain monolayer film.
- 4. A laminated film for a medical packaging container comprising a peelable laminated film, wherein said peelable laminated film comprises, as a surface layer, a film comprising 90% or more by weight of a mixture of a propylene/α-olefin copolymer (A) and at least one of a propylene/α-olefin copolymer (B) having an α-olefin content different from that of the copolymer (A) and a propylene homopolymer (C), wherein the propylene/α-olefin copolymer (A) has an α-olefin content of 5-20 mol % and a melting point of 110-130° C., the propylene/α-olefin copolymer (B) has an α-olefin content of 8 mol % or less, the propylene/α-olefin copolymer (B) and the propylene homopolymer (C) each have a melting point of 130-170° C., and a difference between the melting point of (A) and the melting point of (C) is each at least 5° C. and wherein the α-olefin in the propylene/α-olefin copolymer (A) and the α-olefin in the propylene/α-olefin copolymer (B) are α-olefin having 2 or 4 to 8 carbon atoms.
- 5. The laminated film for a medical packaging container claimed in claim 4, wherein the laminated film is tubular.
- 6. The laminated film for a medical packaging container claimed in claim 4, wherein the laminated film is a plain multilayer film.
- 7. The laminated film for a medical packaging container claimed in claim 4, wherein the laminated film is a lid material for an easily peelable container.
- 8. The laminated film for a medical packaging container claimed in claim 4, wherein the laminated film is a sealing film for rubber stopper caps of an infusion bag.
Priority Claims (1)
Number |
Date |
Country |
Kind |
11-349509 |
Dec 1999 |
JP |
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Parent Case Info
This application is a division of application Ser. No. 10/367,818, filed Feb. 19, 2003 abandoned, which is a continuation of application Ser. No. 09/731,781, filed Dec. 8, 2000 now U.S. Pat. No. 6,720,045.
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Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
09/731781 |
Dec 2000 |
US |
Child |
10/367818 |
|
US |