Sulfur composition
AssigneeChevron Research Company
InventorsLawrence E. Santucci, Robert W. Campbell, Gar Lok Woo
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Abstract
A sulfur-based aggregate-asphalt composition prepared by a process comprising mixing aggregate with asphalt and a molten sulfur system, wherein the molten sulfur system is made by a method comprising heating a mixture of sulfur and a sulfur plasticizer. Dicyclopentadiene is a preferred material for plasticizing the sulfur. Preferably the sulfur system contains, in addition to the sulfur plasticizer, a fibrous filler such as glass fiber or asbestos, and an inorganic filler such as talc powder.
Claims10
A sulfur-based aggregate-asphalt composition prepared by a process comprising mixing aggregate with molten asphalt and a molten sulfur system, wherein the sulfur system is prepared by a method comprising heating sulfur at liquid molten sulfur temperatures with a sulfur plasticizer to thereby plasticize the sulfur, and wherein the amount of the sulfur system in the composition is between 11/4 and 25 parts sulfur system per 1 part asphalt, and wherein the sulfur system comprises 50 to 97 weight percent sulfur.
Dependencies are inferred from the claim text.