Polymer modified oxidized asphalt composition and method
AssigneeAsphalt Sciences LLC
InventorsJoseph Randall Bruns, Sumer S. Lucas
Life of this patent
Estimating the term…
Abstract
A method for generating a polymer modified oxidized asphalt is described. The method includes receiving a plurality of polymerizing concentrate components including an aromatic oil, a saturated polymer, an oxidized polymer, and polyisobutylene (“PIB”). The polymerizing concentrate components are then heated to between 350° F. and 450° F. with mixing for between 1 and 7 hours to generate a polymerizing concentrate. The method then mixes the polymerizing concentrate with oxidized asphalt and heated to between 350° F. and 450° F. with mixing for between 15 minutes and 1 hour to generate the polymer modified oxidized asphalt.
Claims20
A method for generating a polymer modified oxidized asphalt comprising:
- receiving a plurality of polymerizing concentrate components including an aromatic oil, a saturated polymer, an oxidized polymer, and polyisobutylene (“PIB”);
- mixing and heating the plurality of polymerizing concentrate components to between 350° F. and 450° F. for one (1) to seven (7) hours to generate a polymerizing concentrate;
- receiving an oxidized asphalt;
- adding 2% to 20% by weight of the polymerizing concentrate to the oxidized asphalt;
- and
- heating the oxidized asphalt and the polymerizing concentrate to between 350° F. and 450° F. for between 15 minutes and one hour to generate the polymer modified oxidized asphalt.
A polymer modified oxidized asphalt composition comprising:
- a polymerizing concentrate including:
- 50% to 75% by weight of an aromatic oil;
- 5% to 15% by weight of a saturated polymer;
- 1% to 5% by weight of an oxidized polymer;
- 20% to 30% by weight of polyisobutylene (“PIB”);
- and
- an oxidized asphalt.
A method of operating a system for generating polymer modified oxidized asphalt comprising:
- receiving a flow of oxidized asphalt;
- injecting a polymerizing concentrate into the flow of oxidized asphalt, wherein the polymerizing concentrate comprises:
- an aromatic oil;
- a saturated polymer;
- an oxidized polymer;
- and
- polyisobutylene;
- and
- heating the flow of oxidized asphalt and the polymerizing concentrate to between 350° F. and 450° F. for between 1 hour and 7 hours to generated the polymer modified oxidized asphalt.
Dependencies are inferred from the claim text.