Back to results
US 10,294,370 B2Granted
Polyolefin asphalt modifiers, methods of modifying asphalt, asphalt compositions and methods of making
AssigneeLehigh Technologies, Inc.
InventorsPremnathan Naidoo, Vernon Patrick Keating
Life of this patent
Estimating the term…
Abstract
An asphalt additive comprising a primary rheology modifying component and a secondary rheology modifying component, and asphalt compositions and products having such additive incorporated therein. The primary rheology modifying component is generally a polymer, and the secondary rheology modifying component may comprise a petroleum micro-wax.
Claims26
An asphalt composition comprising asphalt, ground tire rubber, polypropylene homopolymer, glycidyl functional terpolymer, and wax.
A modified asphalt that is a product of:
- preparing an additive comprising wax, polypropylene homopolymer, and glycidyl functional polymer;
- preparing a first concentrate comprising the additive and a first asphalt portion;
- preparing a second concentrate of ground tire rubber and second asphalt portion, wherein the first asphalt portion and the second asphalt portion may be the same or different types of asphalts;
- and,
- combining the concentrates to form the modified asphalt.
2 more elements
A method of forming a modified asphalt, the method comprising:
- preparing an additive comprising wax, polypropylene homopolymer, and glycidyl functional polymer;
- preparing a first concentrate comprising the additive and a first asphalt portion;
- preparing a second concentrate of ground tire rubber and second asphalt portion, wherein the first asphalt portion and the second asphalt portion may be the same or different types of asphalts;
- and,
- combining the concentrates to form a modified asphalt.
2 more elements
Dependencies are inferred from the claim text.