Asphalt and rubber comprising composition

Details Asphalt and rubber comprising composition Asphalt and rubber comprising composition

C - Chemistry, Metallurgy

08

F

400/1611

C08F 297/04 (2006.01) C09D 3/24 (1980.01)

Patent

CA 1114546

Abstract of the Disclosure A pipe coating composition is provided having good crack resistance properties that consists essentially of about 50 to 70 wt. % mineral aggregate, about 15 to 35 wt. % finely divided mineral filler, about 5 to 20 wt. % asphalt, about 0.05 to 7 wt. % of a rubbery radial teleblock copolymer, about 0 to 7 wt. % of an oil, and about 0 to 0.5 wt. % of a fibrous material. Furthermore, the crack resistance of a pipe coating composition is dramatically improved by using an asphalt rubber composition in which the rubber is an epoxy-coupled radial teleblock copolymer as compared to a silicon tetrahalide- coupled radial teleblock copolymer of essentially the same structure.

355533

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