Phillips Petroleum Company

Oren L Marrs

Robert E Reusser

Dale O Tieszen

Lew T Gray

Carl A Uraneck

Richard C Doss

John E Burleigh

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. Further more, 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.

Asphalt and rubber comprising composition

A pipe coating composition consisting essentially of a binder, mineral aggregates, a finely divided mineral filler and synthetic organic fibers exhibits improved cracking time as compared to a pipe coating composition containing glass fibers instead of the organic fibers.

Pipe coating composition

An asphaltic composition having low temperature flexibility and resistance to stress cracking, shearing or adhesive failure is prepared using conjugated diene-monovinyl substituted aromatic hydrocarbon copolymers prepared in absence of polar-type randomizers, e.g., tetrahydrofuran, or by incremental addition of both the monovinyl substituted aromatic hydrocarbon and initiator, e.g., organomonolithium. The composition is especially useful in cold places, e.g., as a coating for objects to be stored or kept in cold ground, above ground or under the sea.

Asphaltic compositions containing conjugated diene-monovinyl-substituted

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.

Tenacity and boiling water shrinkage of poly(arylene sulfide) fibers are improved by a heat treatment at temperatures of at least about 100.degree. C (212.degree. F) but below the temperature at which fibers begin to stick to each other, for a time period sufficient to attain desired tenacity or boiling water shrinkage.

Poly(arylene sulfide) fibers

Pressure-sensitive adhesive incorporates an hydroxyl-containing polymer with alkyl silicon, boron or CO containing compounds. The hydroxyl-containing polymer is a rubbery polymer having an alkadienol constituent.

Adhesive formulations incorporating hydroxyl-containing polymers and

A pipe coating composition consisting essentially of a binder, mineral aggregates, a finely divided mineral filler and synthetic organic fibers exhibits improved cracking time as compared to a pipe coating composition containing glass fibers instead of the organic fiber.

Sealant and coating formulations are prepared by curing a mixture comprising (a) a polymercaptan-terminated polymer such as a poly(oxyalkylene)-polyester-poly(monosulfide)-polythiol having an average of more than two mercapto groups per molecule, (b) a bituminous material such as coal tar, (c) a filler such as clay, optionally together with a minor amount of a pigment or a wetting agent.

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Bartlesville, OK, United States of America

Oren L Marrs