Multigrade asphalt power additive
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United States of America Patent
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Aug 3, 2004
Grant Date -
Nov 20, 2003
app pub date -
May 16, 2002
filing date -
May 16, 2002
priority date (Note) -
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Abstract
An additive composition than can be incorporated into asphalt materials to impart thereto multigrade characteristics. The additive is prepared by reacting together at least one saponifiable organic acid, at least one resin acid, at least one unsaturated organic compound, and an alkali metal base to form a reaction product. Water produced during the reaction is removed as the reaction proceeds. The resulting reaction product can be formed into a powder and combined together with asphalt materials to produce multigrade asphalts.
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Cited Art Landscape
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