Sulfur-in-oil in asphalt and polymer composition and process

Details Sulfur-in-oil in asphalt and polymer composition and process Sulfur-in-oil in asphalt and polymer composition and process

C - Chemistry, Metallurgy

08

L

C08L 95/00 (2006.01) C08J 3/20 (2006.01) C08K 3/06 (2006.01) C08K 5/01 (2006.01) C08L 53/02 (2006.01) C10C 3/00 (2006.01)

Patent

CA 2327016

A sulfur in oil in asphalt and polymer blend is disclosed. An asphalt and polymer blend is first prepared and then a slurry of solid sulfur in liquid oil added. Addition of a slurry of solid sulfur in oil permits rapid and effective dispersion of the sulfur component in the asphalt/polymer blend. Uneven mixing, which can occur when sulfur is separately added as a solid to the asphalt blend, is avoided. Polymer use is optimized because polymer swelling can be completed before cross-linking occurs. The method is safer because formation of explosive clouds of sulfur dust is avoided.

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