Join in the overlapped zone of needle punched bentonite sealing

Details Join in the overlapped zone of needle punched bentonite sealing Join in the overlapped zone of needle punched bentonite sealing

1992-06-29

1994-06-21

Bell, James J.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

28107, 428192, 428284, 428300, B32B 506

Patent

active

053225813

ABSTRACT:
Water- and/or oil-tight bentonite sealing sheets or mats are produced which after laying have a water-tight and frictional interconnection or joint in the overlapped part thereof. This is achieved by filling the pore space in the overlapped zone with bentonite and following in situ needle punching of the overlapped zone or with bitumen or synthetic resin systems, optionally filled with bentonite, and later bonding or welding of the overlapped zone. It is also possible to weld the overlapped zone together as "films" and, then to bond or weld such zones.

REFERENCES:
patent: 5041330 (1991-08-01), Heerten et al.
patent: 5171629 (1992-12-01), Herdel et al.
patent: 5174231 (1992-12-01), White
patent: 5221568 (1993-06-01), Heerten et al.

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