Owens-corning Fiberglas Corporation

Louis T Hahn

Alfred Marzocchi

Anthony V Grossi

Leon A Hagelee

Charles E Bolen

There is provided a blend of a slow setting asphalt emulsion with rapid setting emulsion containing the reaction product of asphalt, an acrylamide, a vinyl aromatic monomer and a rubbery polymer.

Blend of rapid set asphaltic emulsion with slow set asphalt emulsion

The adherence between an asphalt and aggregate is increased by incorporating into the asphalt a vinyl monomer and an alkenyl azabenzene.

Additives for hot mix asphalt

A method for reclaiming used asphalt by mixing it with a chemically modifying system consisting of a polymerizable vinyl monomer and an alkenyl azabenzene.

The adherence between an asphalt and aggregate is improved by including in the combination styrene and an acrylamide.

An improved chip seal method for treating pavement with aqueous asphaltic emulsions is provided wherein the emulsion is a blend of a conventional emulsion adapted for an aqueous asphaltic emulsion is provided in which the dispersed asphaltic material is the prereacted reaction product of asphalt having a viscosity of less than about 120,000 cps (at 140.degree. F.), an acrylamide, a vinyl aromatic monomer and an elastomer.

Chip seal technique employing blends of asphaltic emulsions

An aqueous asphaltic emulsion is provided in which the dispersed asphaltic material is the prereacted reaction product of asphalt having a viscosity of less than about 120,000 cps (at 140.degree. F.), an acrylamide, a vinyl aromatic monomer and an elastomer.

Aqueous emulsions of acrylamide and rubber modified asphalts

An improvement in pavement surface-treating methods is provided of the type wherein a slurry seal composition is applied to the pavement the composition comprising aggregate in a slow setting asphaltic emulsion. The improvement resides in combining with the slow setting asphaltic emulsion in effective breaktime decreasing amount of an emulsion containing a chemically modified asphalt which is the prereacted reaction product of an acrylamide, asphalt having a viscosity of less than 120,000 cps (at 140.degree. F.), a vinyl aromatic monomer and a rubbery polymer.

Slurry seal method using acrylamide and rubber modified asphaltic

Chemically modified asphalts having utility for road construction, repair and maintenance as well as coating for various substrates, including cementitious substrates, glass and metal are provided. These asphalts are the product produced by reacting an acrylamide, asphalt having a viscosity of less than about 120,000 cps (at 140.degree. F.), a vinyl aromatic monomer and a rubbery polymer.

Easily emulsifiable acrylamide and rubber modified asphalts

Cationic chemically modified asphalts having utility for road construction, repair and maintenance as well as coating for various substrates, including cementitious substrates, glass and metal are provided. These asphalts are the product produced by reacting an acrylamide, asphalt, a vinyl aromatic monomer and a rubbery polymer.

Cationic arcylamide and rubber modified asphalts

Cationic chemically modified asphalts having utility for road construction, repair and maintenance as well as coating for various substrates, including cementitious substrates, glass and metal are provided. These asphalts are the product produced by reacting an alkenyl azabenzene, asphalt, a vinyl aromatic monomer and a rubbery polymer.

Cationic alkenyl azabenzene and rubber modified asphalts

Cationic chemically modified asphalts having utility for road construction, repair and maintenance, as well as a coating for various substrates including cementitious substrates, glass and metal are provided. These asphalts are obtained by reacting an alkenyl azabenzene, optionally with a vinyl aromatic, with a prereacted product of asphalt, a rubber and a vinyl aromatic monomer.

Cationic alkenyl azabenzene chemically modified asphalts

Cationic chemically modified asphalts are prepared by reacting asphalt, a vinyl aromatic monomer and an amine derivative of a fatty acid. These asphalts are useful for road construction, repair and maintenance as well as a coating for various substrates including cementitious substrates, glass and metal.

Cationic amine modified asphalt compositions

Cationic chemically modified asphalts are prepared by reacting asphalt, an acyclic unsaturated amine, a vinyl aromatic monomer and a rubbery polymer. These asphalts are useful for road construction, repair and maintenance as well as a coating for various substrates including cementitious substrates, glass and metal.

Cationic chemically modified asphalts

Cationic chemically modified asphalts having utility for road construction, repair and maintenance, as well as a coating for various substrates including cementitious substrates, glass and metal are provided. These asphalts are obtained by reacting an acrylamide, optionally with a vinyl aromatic, with a prereacted product of asphalt, a rubber and a vinyl aromatic monomer.

Cationic acrylamide chemically modified asphalts

Blends of two chemically modified asphalts are provided. The first is the product produced by reacting asphalt with a vinyl aromatic monomer and an amine of an acyclic unsaturated hydrocarbon, and the second is the product produced by reacting asphalt with a vinyl aromatic monomer and a rubbery polymer. These asphalts are useful for road construction, repair and maintenance as well as a coating for various substrates including cementitious substrates, glass and metal.

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Newark, OH, United States of America

Louis T Hahn