Title:
WATER BARRIER SHEET FOR LANDFILLING TREATMENT WITH WASTE, AND LANDFILLING TREATMENT WITH WASTE USING THE SAME
Document Type and Number:
Japanese Patent JP3171461
Kind Code:
B2
Abstract:
PURPOSE: To prevent the generation of an environmental problem after landfilling treatment by forming a water barrier sheet for the landfilling treatment with waste from a waterproof air permeable sheet having a porous film provided to at least one part thereof.
CONSTITUTION: A waterproof air permeable water barrier sheet is formed by superposing a porous film 1 having air permeable reinforcing sheets 2, 3 laminated and bonded to both surfaces thereof on a water barrier sheet 4 having a plurality of notch parts so as to surround each of the notch parts of the sheet 4 and bonding the peripheral edge part of the porous film to the water barrier sheet 4. When the porous film 1 is incorporated in the water barrier sheet 4, it is not necessarily to provide the notch part of the surface of water barrier sheet and the water barrier sheets 4 are bonded to both surfaces of the porous film 1 and the intermediate parts of the sheets are composed of the porous sheet 1 or a large number of through-holes are provided to the water barrier sheets 4 at predetermined places and the porous films 1 are superposed on the through-hole parts to be bonded thereto.
Inventors:
Yoshihiro Chikamori
Application Number:
JP21636291A
Publication Date:
May 28, 2001
Filing Date:
August 01, 1991
Export Citation:
Assignee:
Japan Gore-Tex Co., Ltd.
International Classes:
B09B1/00; B32B7/14; B32B27/12; B32B27/30; B32B5/18; (IPC1-7): B09B1/00; B32B5/18; B32B7/14; B32B27/12
Domestic Patent References:
| JP4367775A | ||||
| JP4228716A | ||||
| JP4141283A | ||||
| JP5833618A | ||||
| JP5509116A |
Attorney, Agent or Firm:
Toshiaki Ikeura (1 outside)