Stock material or miscellaneous articles – Layer or component removable to expose adhesive
Reexamination Certificate
2004-02-23
2009-02-10
Nordmeyer, Patricia L (Department: 1794)
Stock material or miscellaneous articles
Layer or component removable to expose adhesive
C428S040300, C428S189000, C428S190000, C428S489000, C052S741400, C404S017000, C404S018000, C404S032000, C404S033000, C404S070000
Reexamination Certificate
active
07488523
ABSTRACT:
A composite membrane comprising a layer of rubberized asphalt having a heavy duty plastic film layer continuously bonded to one side and, optionally, a layer of nonwoven geotextile continuously bonded to the other side. The membrane can be used in vertical or horizontal applications, and is particularly useful for its stress-relief properties that resist crack formation and propagation in concrete walls and slabs in addition to serving as a barrier to moisture, toxic substances and insects. An appropriate composite membrane of the invention can be advantageously utilized in positive side, blindside, underslab or split slab applications. The thickness of the composite membrane preferably ranges from about 30 mils to about 150 mils.
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Millican Tony Joe
Muncaster John W.
Kanz Jack A.
Nordmeyer Patricia L
Polyguard Products, Inc.
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