Rubber modified asphalt compositions
AssigneeOwens-Corning Fiberglas Corporation
InventorsAlfred Marzocchi, Michael G. Roberts, Charles E. Bolen, Edward R. Harrington, Jr.
Life of this patent
Estimating the term…
Abstract
A rubber modified asphalt composition prepared by reacting a bituminous material with a polymerizable aromatic monomer and a rubbery polymer whereby the rubbery polymer is chemically integrated with the asphalt. The rubber modified asphalt compositions of this invention can be used in the treatment of glass fibers as well as in road paving applications, roofing applications and the like.
Claims12
A chemically-modified asphalt composition comprising an asphalt which has been reacted with (1) a polymerizable vinyl aromatic monomer and (2) a rubbery polymer, the reaction having been carried out at a temperature at which the vinyl aromatic monomer and the rubbery polymer react with the asphalt.
A chemically-modified asphalt composition comprising an asphalt which has been reacted with (1) a polymerizable vinyl aromatic monomer and (2) a rubbery polymer in the form of a butadiene-styrene rubber, the reaction having been carried out at a temperature within the range of 200.degree.-500.degree. F.
Dependencies are inferred from the claim text.