Asbestos-free asphalt composition
AssigneeGulf States Asphalt Co.
InventorsChris Frizzell, William L. Adams, Robert Fulton
Life of this patent
Estimating the term…
Abstract
Disclosed is a new and improved sealant and cement asphalt composition that is asbestos-free. The asbestos-free asphalt composition comprises about 40 to about 70 weight percent asphalt, about 5 to about 40 weight percent mineral filler, about 2 to about 10 weight percent cellulose fibers and about 2 to about 20 weight percent of a water-containing material such as an acrylic latex emulsion, asphalt emulsion or aqueous surfactant solution.
Claims26
An asbestos-free asphalt composition, consisting essentially of:
- between about 40 and about 70 weight percent asphalt;
- between about 5 and about 40 weight percent mineral filler;
- between about 2 and about 10 weight percent cellulose fibers;
- and
- between about 2 and about 20 weight percent of a water-containing material selected from the group consisting of an acrylic latex emulsion, a styrene-butadiene copolymer, an asphalt emulsion and an aqueous surfactant solution.
An asbestos-free asphalt composition, consisting essentially of:
- between about 40 and about 70 weight percent asphalt;
- between about 5 and about 40 weight percent mineral filler;
- and
- between about 10 and about 55 weight percent cellulose fibers which have been soaked in water prior to addition to the composition.
A process for preparing an asbestos-free asphalt composition, consisting essentially of:
- soaking cellulose fibers in an aqueous environment prior to the making of the asphalt composition;
- mixing between about 40 and about 70 weight percent asphalt with about 5 to about 40 weight percent mineral filler;
- and
- mixing into the asphalt and mineral filler mixture about 10 to about 55 weight percent cellulose fibers that had been previously soaked in an aqueous environment, said weight percent figures based upon the weight of the total asphalt composition.
An asphalt composition which is free of asbestos and highly structured carbon black, comprising:
- between about 40 and about 70 weight percent asphalt;
- between about 5 and about 40 weight percent mineral filler;
- between about 2 and about 10 weight percent cellulose fibers;
- and
- between about 2 and about 20 weight percent of a water-containing material selected from the group consisting of an acrylic latex emulsion, a styrene-butadiene copolymer, an asphalt emulsion and an aqueous surfactant solution.
An asphalt composition which is free of asbestos and highly structured carbon black, comprising:
- between about 40 and about 70 weight percent asphalt;
- between about 5 and about 40 weight percent mineral filler;
- and
- between about 10 and about 55 weight percent cellulose fibers which have been soaked in water prior to addition to the composition.
A process for preparing an asphalt composition which is free of asbestos and highly structured carbon black, comprising:
- soaking cellulose fibers in an aqueous environment prior to the making of the asphalt composition;
- mixing between about 40 and about 70 weight percent asphalt with about 5 to about 40 weight percent mineral filler;
- and
- mixing into the asphalt and mineral filler mixture about 10 to about 55 weight percent cellulose fibers that had been previously soaked in an aqueous environment, said weight percent figures based upon the weight of the total asphalt composition.
Dependencies are inferred from the claim text.