Back to results
US 6,706,787 B1Granted
Method for preparing asphalt/polymer emulsion-rubber paving composition
AssigneeFlex Products, Inc.
InventorsMichael V. Burris, Bryan B. Burris
Life of this patent
Estimating the term…
Abstract
A method of preparing an asphalt emulsion composition comprises preparing an aqueous emulsion of a synthetic polymer and asphalt mixture, and blending the aqueous asphalt/polymer emulsion with reclaimed rubber particles wherein the ratio of polymer:rubber particles is between about 1:2 and about 1:20, by weight, respectively, at ambient temperature. The final composition may also contain one or more solids selected from a rheological agent, gilsonite, carbon back, surface active clay and polymer fibers, and mixtures thereof.
Claims14
A method of preparing an asphalt emulsion composition comprising
- providing an asphalt/polymer composition, said asphalt/polymer composition comprising an asphalt and a substantially water-free polymer,
- emulsifying said asphalt/polymer composition with water to form an aqueous emulsion comprising a mixture of said asphalt and between about 1% and about 10% of said polymer, by weight, and
- mixing said aqueous emulsion with rubber particles, at least a portion of which pass a #10 U.S. series sieve, in a polymer:rubber particles ratio of between about 1:2 and about 1:20, by weight, at ambient temperature to form said asphalt emulsion composition.
Dependencies are inferred from the claim text.