Asphalt and rubber comprising composition

Details Asphalt and rubber comprising composition Asphalt and rubber comprising composition

1977-03-14

1978-09-19

Marquis, Melvyn I.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 285B, 428 36, C08L 9100

Patent

active

041153359

ABSTRACT:
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.

REFERENCES:
patent: 3281383 (1966-10-01), Zelinski et al.
patent: 3639521 (1972-01-01), Hsieh
patent: 3755231 (1973-08-01), Muir et al.
patent: 3900692 (1975-08-01), Rostler
patent: 3978014 (1976-08-01), VAN Beem et al.

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