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US 2005/0032941 A1Published application
Liquid asphalt modifier
AssigneeGeneral Electric Company
InventorsPaul Hart, Alan Goliaszewski
Life of this patent
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Abstract
The present invention relates to compositions and methods for providing an improved means of modifying asphalt with a polymer. More particularly, this invention provides a solvent system that permits addition of the polymer as a liquid that is preferred over solids addition and handling. The solvent system includes a polymerizable monomer solvent and a rubber or elastomeric polymer.
Claims22
An asphalt composition comprising:
- asphalt;
- and
- a solution comprising a polymerizable monomer solvent and a rubber or elastomeric polymer.
A method of adding a rubber or elastomeric polymer to asphalt, comprising the steps of:
- heating the asphalt;
- dissolving t elastomeric polymer in a polymerizable monomer solvent to form a polymer solution;
- and
- adding the polymer solution to the heated asphalt.
1 more element
Dependencies are inferred from the claim text.