Title:
【発明の名称】例えば建築物で使用するための、バリヤー膜
Document Type and Number:
Japanese Patent JPH03505710
Kind Code:
A
Abstract:
A barrier, particularly to methane and radon, employs a barrier layer (10) (preferably aluminium) encapsulated in protective layers (14, 16) which are bonded to all of its surfaces and extend beyond its main edges where they are mutually bonded. The protective layers (14, 16) include at least one plastics layer. Typically there is a strengthening layer (14) e.g. of polyester coextrusive with the aluminium (10), the aluminium and polyester being encapsulated by a layer (16) of polyolefin on one face and another layer (16) of polyolefin and/or bitumen at the other face.
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Inventors:
Freeman, Michael Ashley
Application Number:
JP50725189A
Publication Date:
December 12, 1991
Filing Date:
June 20, 1989
Export Citation:
Assignee:
DRG Wrexham Limited
International Classes:
B32B3/06; B32B7/02; B32B15/08; B32B27/08; E02D31/00; (IPC1-7): B32B3/06; B32B7/02; B32B15/08; B32B27/08; E02D31/00
Attorney, Agent or Firm:
Takashi Ishida (3 others)