Title:
EASY-OPEN END CLOSURE
Document Type and Number:
WIPO Patent Application WO/2007/091740
Kind Code:
A1
Abstract:
An easy-open end closure which exhibits satisfactory corrosion resistance and
opening characteristics in spite of its being made by using a bisphenol A-free primer
and is excellent in hygiene and environmental protection, more specifically, an
easy-open end closure composed of an aluminum substrate having an organic/inorganic treatment
layer containing both a zirconium compound and/or a titanium compound and an
organic compound on the side to constitute the inside surface of the closure, a
primer layer formed on the treatment layer, and a polyester film formed on the primer
layer, characterized in that the primer layer is made from a primer comprising a
polyester resin containing at least 30% by weight of a carboxylated polyester resin
and a phenol resin at a weight ratio of 50:50 to 85:15.
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Inventors:
YAOI ETSUKO (JP)
SATO KAZUHIRO (JP)
FUKUI GO (JP)
SUE TOSHIO (JP)
SATO KAZUHIRO (JP)
FUKUI GO (JP)
SUE TOSHIO (JP)
Application Number:
PCT/JP2007/052807
Publication Date:
August 16, 2007
Filing Date:
February 09, 2007
Export Citation:
Assignee:
TOYO SEIKAN KAISHA LTD (JP)
YAOI ETSUKO (JP)
SATO KAZUHIRO (JP)
FUKUI GO (JP)
SUE TOSHIO (JP)
YAOI ETSUKO (JP)
SATO KAZUHIRO (JP)
FUKUI GO (JP)
SUE TOSHIO (JP)
International Classes:
B65D17/32; B32B9/00; B32B15/09
Foreign References:
| JP2005126097A | 2005-05-19 | |||
| JP2000006979A | 2000-01-11 | |||
| JP2000202944A | 2000-07-25 | |||
| JPS5993636A | 1984-05-30 | |||
| JP2005126097A | 2005-05-19 |
Other References:
See also references of EP 1982923A4
Attorney, Agent or Firm:
ONO, Hisazumi et al. (1-21 Nishi-shimbashi 1-chome, Minato-k, Tokyo 03, JP)
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