Coating processes – Restoring or repairing
Patent
1985-07-23
1987-04-28
Childs, Sadie L.
Coating processes
Restoring or repairing
106278, 106285, 427138, 4273936, B32B 3500
Patent
active
046613781
ABSTRACT:
A novel composition for treating asphalt and concrete surfaces is provided formed of a mixture of topped coke oven tar, an aromatic solvent having an API Gravity@ 60.degree. F. of 11-30, Specific Gravity 60.degree./60.degree. F. of from 0.876-0.993, Distillation Range .degree. F. of 310-450 IBP (initial boiling point) to 350-550 DP (dry point), and a Flash pt. .degree. F. TCC of 110-250; and a bituminous pavement rejuvenator which is a composition derived from coal tar and comprises a mixture of di-, tri- and tetracyclic aromatic compounds and their alkyl homologs containing lower alkyl groups together with a significant amount of phenolic and hydroxy derivatives and having a specific gravity at 25.degree./25.degree. C. of at least 1.08, an initial boiling point of at least 180.degree. C., and a continuous boiling range to at least 300.degree. C., 70-40% by volume of the material remaining as residue at 300.degree. C., and the distillate to 300.degree. C. having a minimum specific gravity at 25.degree./25.degree. C. of about 1.025.
REFERENCES:
patent: 3221615 (1965-12-01), McGovern
patent: 3261269 (1966-07-01), McGovern
Childs Sadie L.
Koppers Company Inc.
MacKay Donald M.
Zeh, Jr. Herbert J.
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