Aqueously-swelling water stopper and a process for stopping wate

Details Aqueously-swelling water stopper and a process for stopping wate Aqueously-swelling water stopper and a process for stopping wate

1984-12-12

1985-12-17

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

5216914, 106DIG4, 252 85A, E02D 2916

Patent

active

045588759

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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The Condensed Chemical Dictionary 5th Ed. 1956, pp. 138, 871, 872.
Reinhold Plastics Application Series 1961, pp. I and IX.
Webster's New Collegiate Dictionary 1956, p. 646.

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