Cold applied joint sealant
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 17, 1984
Grant Date -
N/A
app pub date -
Feb 8, 1983
filing date -
Feb 8, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cold applied joint sealant usable for both portland cement and asphaltic concrete pavements, which comprises an asphalt/urethane formulation resulting from the mixture of a liquid butadiene polymer, containing predominantly primary terminal hydroxyl groups, with a urethane reactant of di- or polyisocyanate. The sealant has low urethane content and cures to provide a low modulus, high penetration, with 85%-95% resilience and zero flow. An initial set time of less than about 120 minutes is achieved, which permits vehicular traffic to be accommodated thereover soon after application.
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Family
International Classification(s)
Cited Art Landscape
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