Self leveling highway sealant

Details Self leveling highway sealant Self leveling highway sealant

C - Chemistry, Metallurgy

09

K

400/5309, 400/72

C09K 3/10 (2006.01) C08K 5/5455 (2006.01) C08K 13/06 (2006.01) C08L 83/04 (2006.01)

Patent

CA 1337313

A self leveling silicone sealant composition is obtained by combining 100 parts by weight of a hydroxyl endblocked polydiorganosiloxane having a viscosity of from 1.8 to 125 Pa.s; from 0 to 150 parts by weight of non-acidic, non-reinforcing filler, from 95 to 5 percent of the filler being treated; from 2.5 to 10 parts of diacetamidosilane; a crosslinker consisting of either from 0.3 to 4.2 parts of a triacetamidosilane or 1 to 6 parts of an aminoxysilicon compound; and from 1 to 50 parts of a diluent. The composition, when cured, has an elongation of at least 600 percent, a durometer on the Shore A scale of from 5 to 20 inclusive and a modulus at 150 percent elongation of less than 50 pounds per square inch.

592582

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