Owens-corning Fiberglas Corporation

Bhalchandra B Patil

William E Uffner

J Matthew White

An aqueous emulsion of a blend of asphalt having viscosity at 165.degree. F. of about 100 to about 1000 centipoises with a petroleum extender oil preferably having a viscosity at 40.degree. C. of not more than about 1000 centistokes, preferably stabilized with a protective colloid in conjunction with conventional surfactants, provides a particularly effective and long-lasting treatment of substrates, such as dirt or gravel roads and the like, for suppressing the evolution of fugitive dust therefrom by applying the emulsion, usually in dilute form, to the exposed surface of the substrate, as by spraying.

Method for suppressing dust on dirt roads and the like

A joint sealing compound comprises the reaction product of a non-blown asphalt flux, a hydroxyl-terminated polymer of butadiene, a vinyl monomer, a butadiene-styrene linear block polymer and an extender oil.

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Reynoldsburg, OH, United States of America

Bhalchandra B Patil