Aqueously-swelling water stopper and a process for stopping water thereby
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United States of America Patent
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-
Dec 17, 1985
Issued Date -
N/A
app pub date -
Dec 12, 1984
filing date -
Apr 5, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The disclosed water stopper and water stopping process use an aqueously-swelling water-stopping composition consisting of 10 to 40 weight % of rubber whose main ingredient is polyisobutylene, 10 to 20 weight % of silicate, 10 to 60 weight % of bentonite, said silicate and bentonite acting as fillers, and 10 to 40 weight % of plasticizer. The aforesaid water-stopping composition may be extruded into an elongated water stopper with or without a core therein, which water stopper can be inserted in a joint gap or other gap of structural members to stop water at the gap.
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