Title:
LAMINATED PACKAGING MATERIAL AND PACKAGING BAG
Document Type and Number:
WIPO Patent Application WO/2004/011252
Kind Code:
A1
Abstract:
A laminated packaging material which comprises a substrate, an adhesive layer and a sealant comprising two laminated linear polyethylene layers having different densities, wherein the sealant comprises a first layer being located on the adhesive side and having a density of 0.89 to 0.925/cm3, and a second layer having a density of more than 0.925 /cm3 and not more than 0.940/cm3, and satisfies with respect to the thickness of the above layers that a/b is 3 to 5 and b is 5 to 20 μm, a and b representing the sickness of the first layer and second layer, respectively.
Inventors:
MIZUMA HIROYUKI (JP)
MAKI TOSHIYUKI (JP)
MAKI TOSHIYUKI (JP)
Application Number:
PCT/JP2003/009456
Publication Date:
February 05, 2004
Filing Date:
July 25, 2003
Export Citation:
Assignee:
TOPPAN PRINTING CO LTD (JP)
MIZUMA HIROYUKI (JP)
MAKI TOSHIYUKI (JP)
MIZUMA HIROYUKI (JP)
MAKI TOSHIYUKI (JP)
International Classes:
B32B27/32; (IPC1-7): B32B27/32; B65D65/40
Foreign References:
| JP2000135759A | 2000-05-16 | |||
| JP2000313093A | 2000-11-14 | |||
| JPH06270356A | 1994-09-27 | |||
| JP2000108254A | 2000-04-18 | |||
| JPH06171039A | 1994-06-21 | |||
| JPH08309939A | 1996-11-26 |
Attorney, Agent or Firm:
Suzuye, Takehiko c/o Suzuye & Suzuye (7-2 Kasumigaseki 3-chom, Chiyoda-ku Tokyo, JP)
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