Title:
PLASTIC FILM HAVING OXYGEN ABSORBING FUNCTION AND INFUSION BAG
Document Type and Number:
WIPO Patent Application WO/2011/052776
Kind Code:
A1
Abstract:
Disclosed are: a plastic film for medical containers, which has oxygen absorbing function; and an infusion bag which is formed of the plastic film for medical containers. Specifically disclosed is a plastic film for medical containers, which is composed of at least four layers, namely: a first layer (1) that is composed of a polyamide that is obtained by ring-opening polymerizing a lactam having 11 or more carbon atoms or by polycondensing an ω-amino acid having 11 or more carbon atoms, or a polyamide that is obtained by copolycondensing a dicarboxylic acid having 10 or more carbon atoms and a diamine having 6 or more carbon atoms: a second layer (2) that is formed adjacent to the first layer and composed of a mixed composition that contains an ethylene-vinyl alcohol copolymer as a main component, while containing a polyene polymer having an unsaturated double bond and a transition metal salt as sub-components; a third layer (3) that is formed adjacent to the second layer and contains, as a main component, a copolymer of an α-olefin and an anhydride monomer of an unsaturated carboxylic acid or an unsaturated dicarboxylic acid; and a sealing layer (4) that contains a polyethylene as a main component. The plastic film for medical containers is formed by co-extrusion using a water-cooled inflation method.
Inventors:
KOBAYASHI YUKIO (JP)
KAGEYAMA YOHEI (JP)
NAKAMURA MANABU (JP)
KOTANI MASATAKA (JP)
IWASAKI TOSHIHARU (JP)
KAGEYAMA YOHEI (JP)
NAKAMURA MANABU (JP)
KOTANI MASATAKA (JP)
IWASAKI TOSHIHARU (JP)
Application Number:
PCT/JP2010/069477
Publication Date:
May 05, 2011
Filing Date:
November 02, 2010
Export Citation:
Assignee:
HOSOKAWA YOKO KK (JP)
KOBAYASHI YUKIO (JP)
KAGEYAMA YOHEI (JP)
NAKAMURA MANABU (JP)
KOTANI MASATAKA (JP)
IWASAKI TOSHIHARU (JP)
KOBAYASHI YUKIO (JP)
KAGEYAMA YOHEI (JP)
NAKAMURA MANABU (JP)
KOTANI MASATAKA (JP)
IWASAKI TOSHIHARU (JP)
International Classes:
A61J1/10; B29C48/10; B29C48/305; B32B27/28; B32B27/32; B32B27/34; B65D65/40
Foreign References:
| JP2001506200A | 2001-05-15 | |||
| JP2004010679A | 2004-01-15 | |||
| JPH09109274A | 1997-04-28 | |||
| JP2005280749A | 2005-10-13 | |||
| JP2009154924A | 2009-07-16 | |||
| JP2008037065A | 2008-02-21 | |||
| JP2009022753A | 2009-02-05 | |||
| JP2007283565A | 2007-11-01 |
Other References:
See also references of EP 2497453A4
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
Masatake Shiga (JP)
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