Title:
MULTILAYERED FILM AND CONTAINER
Document Type and Number:
WIPO Patent Application WO/1994/018000
Kind Code:
A1
Abstract:
A multilayered film composed of the outer layer comprising a linear ethylene/alpha-olefin copolymer having a density of 0.920-0.950 g/cm3, the intermediate layer comprising a linear ethylene/alpha-olefin copolymer having a density of 0.920/cm3 or less, and the inner layer comprising a resin composed of a linear ethylene/alpha-olefin copolymer having a density of 0.940 g/cm3 or less and containing 20-40 wt.% of polypropylene, wherein a high-density polyethylene having a density of 0.960 g/cm3 or above is incorporated in all of the outer, intermediate and inner layers in amounts of, respectively, 15-55 wt.%, 15-55 wt.% and 5-50 wt.%; and a container made by molding the above film, which is free from the fear of sealing strength lowering, deformation, transparency lowering, and the like even when sterilized at a temperature as high as 120 �C or above and can provide a double-compartment container having a stabilized, easy-to-peel sealing part, thus being suitable for use as a transfusion bag.
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Inventors:
WATANABE KATSUSHI (JP)
KASHIYAMA SHIGETOSHI (JP)
KASHIYAMA SHIGETOSHI (JP)
Application Number:
PCT/JP1994/000144
Publication Date:
August 18, 1994
Filing Date:
February 02, 1994
Export Citation:
Assignee:
OTSUKA PHARMA CO LTD (JP)
MITSUI PETROCHEMICAL IND (JP)
WATANABE KATSUSHI (JP)
KASHIYAMA SHIGETOSHI (JP)
MITSUI PETROCHEMICAL IND (JP)
WATANABE KATSUSHI (JP)
KASHIYAMA SHIGETOSHI (JP)
International Classes:
A61J1/00; A61J1/10; A61J1/20; B32B7/02; B32B27/32; B65D65/40; C08L23/08; C08L23/06; C08L23/12; (IPC1-7): B32B27/32; B65D65/40; B65D75/30; B65D77/08; B65D81/32
Foreign References:
| JPH0295849A | 1990-04-06 | |||
| JPS6422548A | 1989-01-25 | |||
| JPH02150442A | 1990-06-08 | |||
| JPH0339332A | 1991-02-20 | |||
| JPS59142963A | 1984-08-16 | |||
| JPS56150777U | 1981-11-12 | |||
| JPH024671A | 1990-01-09 | |||
| JPH04266759A | 1992-09-22 |
Other References:
See also references of EP 0634270A4
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