Flowable joint sealant for concrete highway

Details Flowable joint sealant for concrete highway Flowable joint sealant for concrete highway

1988-04-15

1989-12-26

Ivy, C. Warren

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524778, 524788, 524864, C08K 904, C08K 509, C08K 326, C08L 8308

Patent

active

048898783

ABSTRACT:
A moisture curable composition which is useful for sealing pavement joints consists essentially of 100 parts by weight of a hydroxyl endblocked polydiorganosiloxane, 55 to 120 parts of non-reinforcing, non-acidic filler wherein at least 40 percent by weight of the filler is treated with calcium stearate, 2.5 to 10 parts of diacetamidosilane, and 1 to 6 parts of aminoxysilicone compound. The composition is self leveling when applied to a horizontal surface and when cured has an elongation of at least 1200 percent, a durometer on the Shore OO scale of from 45 to 75 inclusive, and a modulus at 150 percent elongation of less than 50 pounds per square inch.

REFERENCES:
patent: 3441583 (1969-04-01), Murphy
patent: 3776933 (1973-12-01), Toporcer et al.
patent: 3817909 (1974-06-01), Toporcer et al.
patent: 3996184 (1976-12-01), Klosowski
patent: 4323489 (1982-04-01), Beers
patent: 4447576 (1984-05-01), Fukayama
patent: 4514529 (1985-04-01), Beers
patent: 4528324 (1985-07-01), Chung

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