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US 5,476,542 AGranted
Asphalt compositions with improved cross-linking agent
OwnerMichael P. Doyle, Jimmy L. Stevensinventors
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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 such as n-methyl fatty acid taurate, and fatty amines and is substantially free of water.
Claims3
A process for preparing an improved cross-linking agent for asphalt compositions, said process comprising:
- blending sodium hydroxide with n-methyl fatty acid taurate 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.
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.