High performance asphalt using alkyl aromatic sulfonic acid...

Details High performance asphalt using alkyl aromatic sulfonic acid... High performance asphalt using alkyl aromatic sulfonic acid...

2006-12-19

2006-12-19

Brunsman, David (Department: 1755)

Compositions: coating or plastic

Coating or plastic compositions

Bituminous material or tarry residue

C106S275000

Reexamination Certificate

active

07150785

ABSTRACT:
Disclosed is a high performance asphalt comprising a mixture of low to moderate performance asphalt with linear or branch chain alkyl substituted aromatic sulfonic acid. The high performance asphalt is made by mixing the low to moderate performance asphalt with 1 to 10 wt % linear or branched chain C8–C48alkyl substituted aromatic sulfonic acid at a temperature of 175° C. and less.

REFERENCES:
patent: 2278954 (1942-04-01), Thurston
patent: 4440579 (1984-04-01), Eidem
patent: 4713117 (1987-12-01), Goodrich
patent: 6444731 (2002-09-01), Memon

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