Asphalt compositions with improved cross-linking agent
AssigneeVinzoyl Petroleum Co.
InventorsMichael P. Doyle, Jimmy L. Stevens
Life of this patent
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Abstract
An improved, substantially anhydrous, cross-linking agent is disclosed for use in asphalt compositions of the type used for roofing and paving materials. The cross-linking agent comprises a blend of tall oil, a strong base, an anhydrous organic solvent, and fatty amines and is substantially free of water.
Claims24
An improved cross-linking agent for asphalt compositions, said cross-linking agent comprising:
- tall oil;
- a strong base;
- an anhydrous organic solvent;
- and
- fatty amines;
- said cross-linking agent being substantially free of water.
An asphalt composition having improved adhesion to crumb rubber from used automobile tires, said composition comprising asphalt and an adhesion improving amount of a cross-linking agent;
- said cross-linking agent comprising the reaction product of tall oil, a strong base, an anhydrous organic solvent and fatty amines and being substantially free of water.
An asphalt composition having improved adhesion to aggregate, said composition comprising:
- asphalt and an adhesion improving amount of a cross-linking agent;
- said cross-linking agent comprising the reaction product of tall oil, a strong base, an anhydrous organic solvent and fatty amines.
An asphalt composition comprising:
- asphalt;
- crumb rubber from used automobile tires;
- and
- an adhesion improving amount of a cross-linking agent comprising tall oil, a strong anhydrous base, an anhydrous organic solvent and fatty amines, said cross-linking agent being substantially free of water.
A method for preparing an asphalt composition, said process comprising:
- blending with an asphalt an adhesion improving amount of a cross-linking agent comprising the reaction product of tall oil, an anhydrous strong base, an anhydrous organic solvent and fatty amines to provide a first mixture;
- and
- blending with said first mixture crumb rubber from used automobile tires to provide a second mixture.
A process for preparing an improved cross-linking agent for asphalt compositions, said process comprising:
- blending sodium hydroxide with an anhydrous organic solvent and fatty amines to provide a solubilized anhydrous strong base;
- and
- blending said anhydrous strong base with crude tall oil with mixing and heating until an exothermic saponification reaction is completed.
Dependencies are inferred from the claim text.