Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Patent
1991-03-19
1992-01-07
Silbaugh, Jan H.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including a second component containing structurally defined...
5216914, 52232, 52408, 52515, 264 69, 264112, 264113, 4272088, 428148, 428149, 428150, 428328, 428329, 428337, 428451, 428701, 428913, B32B 516, B32B 900, B32B 1312, B32B 1900
Patent
active
050790889
ABSTRACT:
A waterproof sheet used to waterproof structures has a single layer of non-degradable, water impermeable polymeric membrane that has layers of particles of non-hydrated sodium montmorillonite (sodium bentonite) adhering to the membrane in a uniform layered thickness. The layers of particles of sodium montmorillonite spaced from the membrane adhere to each other, with a coating material (adhesive) that is designed to provide the necessary performance for waterproofing. A water soluble dye is provided in the layer of particles so if a tear occurs in the impermeable membrane and water contacts the particles, the dye will stain the membrane and mark the location of the tear.
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McGroarty Bryan M.
McGroarty Patrick J.
Aftergut Karen
Paramount Technical Products Inc.
Silbaugh Jan H.
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