Stock material or miscellaneous articles – Sheets or webs edge spliced or joined
Patent
1983-05-23
1986-04-29
Van Balen, William J.
Stock material or miscellaneous articles
Sheets or webs edge spliced or joined
428 40, 428215, 428246, 428286, 428354, 428463, 428468, 428489, 428910, 428913, B32B 300, B32B 702, B32B 704, B32B 712
Patent
active
045856826
ABSTRACT:
Waterproofing membranes are disclosed comprising a shrinkable polymer film bonded to a foil layer by a layer of thermoplastic adhesive having sufficient bonding strength below the shrinkage onset temperature of the polymer film to inhibit relative movement between the film and the foil and having sufficient plasticity above the shrinkage onset temperature of the polymer film to permit relative movement between the film and the foil. In a preferred embodiment, the membrane is made self adhesive by including a layer of an adhesive material on that surface of the foil opposite the layer of the thermoplastic adhesive.
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Colarusso Peter C.
Siadat Bahram
Baker William L.
Van Balen William J.
W. R. Grace & Co.
Wasatonic John J.
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