Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1981-01-21
1982-12-28
Lieberman, Allan
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524518, 524519, 524521, 524525, 524526, 524527, 524528, 524551, 524552, 524554, 524565, 524566, 524569, 524571, 524572, 524573, 524574, 524575, 524576, C08J 312, C08J 320, C08K 334, C08L 6100
Patent
active
043662846
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 reclaimed rubber, 10 to 20 weight % of silicic compound, 10 to 60 weight % of bentonite, 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 into a joint gap or other gap of structural members to stop water at the gap.
REFERENCES:
patent: 4174992 (1979-11-01), Fujii et al.
patent: 4209568 (1980-06-01), Clem
patent: 4264481 (1981-04-01), Markvik
Vanderbilt Rubber Handbook, R. T. Vanderbilt Company, N.Y.C., 1958, p. 88.
Journal of the Society of Rubber Industry, Japan, vol. 38, #9, (1965) pp. 755 through 765 and partial translations.
Ishido Yoshinobu
Tanaka Hideo
Hayakawa Rubber Company Limited
Lieberman Allan
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